Shaanxi Zhuohua Steel Co., Ltd.
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17-4PH / AISI 630 / UNS S17400 / 0Cr17Ni4Cu4Nb Precipitation-Hardening Stainless Steel
17-4PH stainless steel (AISI 630 / UNS S17400 / 0Cr17Ni4Cu4Nb) is a martensitic precipitation-hardening stainless steel recognized for its excellent strength–toughness balance and good corrosion resistance. Its performance can be enhanced through controlled heat treatment, making it suitable for demanding engineering applications requiring high strength and durability. The material offers reliable performance under extreme working conditions and is widely used in high-end industries such as aerospace, petrochemicals, and medical equipment. Its combination of mechanical strength, toughness, corrosion resistance, and heat-treatment capability makes it a versatile material for critical components and high-performance applications. With its balanced properties and proven industrial performance, 17-4PH / AISI 630 / UNS S17400 is an ideal choice for aerospace components, petrochemical equipment, medical devices, and other demanding engineering applications. It is available in our special-grade stainless steel range, particularly in round steel/rod forms.
15-5PH / XM-12 / UNS S15500 Precipitation-Hardening Stainless Steel
15-5PH stainless steel (XM-12 / UNS S15500) is a martensitic precipitation-hardening stainless steel developed as an improvement over 17-4PH. It offers an excellent combination of high strength, toughness, corrosion resistance, and processing performance, making it suitable for demanding applications in aerospace, energy, medical, and other high-performance industries. The material provides tensile strength ≥1035 MPa, yield strength ≥930 MPa, elongation ≥12%, and hardness of 40–44 HRC after heat treatment. Its lower sulfur content and more uniform structure contribute to improved toughness, weldability, corrosion resistance, and dimensional stability compared with 17-4PH. With flexible precipitation-hardening conditions including H900, H1025, H1075, and H1150, its mechanical properties can be tailored to specific application requirements. Typical applications include aerospace components, oil & gas equipment, nuclear components, medical devices, chemical equipment, valves, pumps, fasteners, and precision structural parts.
AISI 632 / 13-8Mo / 0Cr13Ni8Mo2Al Precipitation-Hardening Stainless Steel
AISI 632 (13-8Mo / 0Cr13Ni8Mo2Al) is a martensitic precipitation-hardening stainless steel developed for demanding engineering applications, particularly in the aerospace industry. It provides an excellent combination of high strength, toughness, and corrosion resistance, making it suitable for critical components where high performance and reliability are essential. The material is produced using an advanced dual vacuum melting process (VIM + VAC-ESR/VAR), combining vacuum induction melting with vacuum consumable or electroslag remelting. This process ensures ultra-high purity and structural uniformity, supporting consistent quality and reliable performance in critical aviation and aerospace applications. With its combination of ultra-high strength, toughness, corrosion resistance, purity, and structural integrity, AISI 632 / 13-8Mo is an ideal material for aerospace, aviation, and other high-performance engineering applications. It is available in our special-grade stainless steel range, particularly in round steel/rod forms.
AISI 961/ 1Cr11Ni2W2MoV / 13Cr11Ni2W2MoV Heat-Resistant Stainless Steel
1Cr11Ni2W2MoV is a high-alloy martensitic heat-resistant stainless steel developed for high-temperature, high-load, and corrosion-resistant operating conditions. It complies with Chinese military and aviation industry standards, including GJB 2294-95, GJB 2294A-2014, and HB5024-89. Produced through electroslag remelting (ESR), the material offers enhanced purity, structural integrity, and overall performance. The material maintains high strength and stability at temperatures below 600°C, with room-temperature tensile strength of 885–1080 MPa and yield strength of 735–885 MPa. Its high chromium content provides excellent corrosion and oxidation resistance, while tungsten, molybdenum, and vanadium contribute to high-temperature strength, creep resistance, and fatigue performance. With flexible heat-treatment capability and excellent high-temperature performance, 1Cr11Ni2W2MoV / 13Cr11Ni2W2MoV / 961 (EI961) is well suited for aerospace engine components, turbine discs, shafts and fasteners, energy equipment, gas turbines, nuclear equipment, pumps, valves, and reactor components. Its balanced combination of strength, heat resistance, corrosion resistance, and long-term stability makes it a high-performance material for demanding applications.
D406A/ 30Si2MnCrMoVE Low-Alloy Ultra-High-Strength Steel
30Si2MnCrMoVE (D406A) is a low-alloy ultra-high-strength steel developed for demanding aerospace and defense applications. It offers an exceptional combination of ultra-high strength, toughness, and structural reliability, and is particularly associated with aerospace applications such as rocket motor casings and other critical structural components. The grade is covered by GB/T 38809-2020 and relevant Chinese aerospace/military standards. After appropriate quenching and tempering treatment, 30Si2MnCrMoVE can achieve a tensile strength of ≥1620 MPa, yield strength of ≥1320 MPa, elongation of ≥9%, reduction of area of ≥40%, and impact energy of ≥40 J under the GB/T 38809-2020 specification. Its high strength and toughness make it particularly suitable for components subjected to high mechanical loads and demanding service conditions. With its outstanding strength-to-weight performance, toughness, and fatigue resistance, 30Si2MnCrMoVE / D406A is widely used for aerospace and rocket components, rocket motor casings, aircraft structures, and other high-performance engineering applications. Important: unlike the 13-8Mo, 15-5PH, and 17-4PH grades discussed earlier, I would not list an AISI equivalent for D406A, because the sources identify D406A as the unified Chinese designation, not as a direct AISI grade equivalent.
300M/ 40CrNi2Si2MoVA Ultra-High-Strength Alloy Steel
300M/ 40CrNi2Si2MoVA) is a low-alloy ultra-high-strength steel developed for demanding aerospace and high-performance engineering applications. It is a modified form of AISI 4340, with increased silicon and vanadium additions that provide an excellent combination of ultra-high strength, toughness, hardenability, fracture toughness, and fatigue resistance. After appropriate heat treatment, 300M can achieve a tensile strength of approximately 1,860–2,100 MPa, while maintaining good toughness and fatigue performance. High-quality aerospace grades are commonly produced using vacuum melting/remelting processes to improve cleanliness and metallurgical quality, making the steel particularly suitable for highly stressed and safety-critical components. With its outstanding strength-to-weight performance, toughness, and fatigue resistance, 300M / 40CrNi2Si2MoVA is widely used for aircraft landing gear, structural components, high-strength bolts, shafts, gears, wing fasteners, suspension parts, and other critical aerospace and high-load engineering components.
22Cr12NiWMoV / SUH 616 / AISI 422 / UNS S42200 High-Temperature Stainless Steel
22Cr12NiWMoV is a martensitic heat-resistant stainless steel, also classified as a high-temperature alloy. With strengthening elements including tungsten, molybdenum, vanadium, and niobium, combined with appropriate heat treatment, it provides an excellent balance of high strength, toughness, fatigue resistance, and high-temperature corrosion and oxidation resistance. The material is specified for demanding aviation-engine applications under DZ 2.11.31-2021. The material maintains excellent thermal strength, creep resistance, and stress-relaxation resistance in the 550–620°C range. It also offers good hot-working and machining performance, while its chromium content provides enhanced corrosion and oxidation resistance. Typical room-temperature requirements include tensile strength ≥930 MPa, yield strength ≥780 MPa, elongation ≥15%, and impact energy ≥63 J. With its outstanding high-temperature strength, durability, and reliability, 22Cr12NiWMoV / AISI 422 / UNS S42200 / S47220 is widely suited for aircraft-engine turbine blades, compressor blades and discs, turbine components, high-temperature fasteners, gas turbines, and nuclear-energy equipment. International material references also associate 22Cr12NiWMoV with AISI 422, UNS S42200, JIS SUH616, and EN 1.4935 / X20CrMoWV12-1.
C200 / 18Ni(200) / 00Ni18Co8Mo3TiAl Ultra-High-Strength Maraging Steel
C200 (18Ni200) is a cobalt-strengthened maraging steel belonging to the 18% nickel ultra-high-strength steel family. It combines high strength, excellent toughness, fracture toughness, and good dimensional stability, while its very low carbon content provides good weldability and machinability in the solution-treated condition. The “200” designation refers approximately to its 200 ksi yield-strength level. C200 contains approximately 18% nickel, 8.5% cobalt, 3% molybdenum, 0.2% titanium, and 0.1% aluminium, with iron as the balance. Through solution treatment followed by aging, the alloy develops its ultra-high-strength properties while retaining good toughness and ductility. Typical C200 properties are around 1,400 MPa yield strength and 1,450 MPa tensile strength, depending on specification and heat-treatment condition. With its outstanding strength-to-weight ratio, toughness, fatigue performance, and dimensional stability, C200 / 18Ni200 / 00Ni18Co8Mo3TiAl is suitable for aerospace structures, aircraft components, rocket and missile components, high-strength fasteners, landing-gear structures, and other critical high-performance engineering applications. For exhibition purposes, I recommend not calling C200 an “AISI” grade; 18Ni200 and C200 are the more appropriate designations.
TM210A / 00Ni18Co10Mo5TiAl / 18Ni-300 Ultra-High-Strength Maraging Steel
TM210A is a high-performance ultra-high-strength maraging steel developed in China based on the 18Ni maraging-steel family. It combines exceptionally high strength, toughness, fracture toughness, ductility, and fatigue resistance, making it particularly suitable for highly loaded and safety-critical aerospace components. The material is associated with the Chinese designation 00Ni18Co10Mo5TiAl and is covered by GJB 10310-2021 for ultra-high-strength maraging-steel forgings. Through solution treatment and subsequent aging, TM210A develops a martensitic matrix strengthened by precipitation of intermetallic compounds. Reported properties include tensile strength of approximately 2125 MPa, yield strength of 2065 MPa, elongation of 9.5%, reduction of area of 60%, fracture toughness of about 65 MPa·m½, and hardness of approximately 55 HRC. Its very low carbon content also contributes to good dimensional stability and processing performance. With its outstanding strength-to-weight ratio, toughness, fatigue performance, and fracture resistance, TM210A / 00Ni18Co10Mo5TiAl / 18Ni-300 is particularly suited for aircraft high-lift systems, gears, aircraft structural components, drive and transmission components, rocket and missile components, and other critical aerospace applications. TM210A is not an AISI grade, so I recommend not adding an AISI equivalent to the exhibition heading unless a specific customer specification requires one.
A286 / AISI 660 / UNS S66286 / GH2132 (GH132) Precipitation-Hardening Stainless Steel
A286 (UNS S66286 / AISI 660 / GH2132) is an iron–nickel–chromium based precipitation-hardening alloy developed for demanding high-temperature and high-strength applications. It combines high strength, excellent corrosion resistance, good toughness, creep resistance, and good fabrication characteristics. The Chinese equivalent is commonly designated GH2132 (GH132). A286 is strengthened through controlled heat treatment and additions of titanium, molybdenum, aluminum, vanadium, and boron. It maintains high yield, creep, and stress-rupture strength at temperatures up to approximately 650°C, while retaining good processing and welding performance. With its excellent combination of high-temperature strength, corrosion resistance, toughness, and long-term reliability, A286 / AISI 660 / UNS S66286 / GH2132 (GH132) is widely used for aerospace engine components, turbine and compressor discs, rotor blades, high-temperature fasteners, bolts, shafts, and other critical components operating in demanding environments.
A286 / AISI 660 / UNS S66286 / GH2132 (GH132) Precipitation-Hardening Stainless Steel
A286 (UNS S66286 / AISI 660 / GH2132) is an iron–nickel–chromium based precipitation-hardening alloy developed for demanding high-temperature and high-strength applications. It combines high strength, excellent corrosion resistance, good toughness, creep resistance, and good fabrication characteristics. The Chinese equivalent is commonly designated GH2132 (GH132). A286 is strengthened through controlled heat treatment and additions of titanium, molybdenum, aluminum, vanadium, and boron. It maintains high yield, creep, and stress-rupture strength at temperatures up to approximately 650°C, while retaining good processing and welding performance. With its excellent combination of high-temperature strength, corrosion resistance, toughness, and long-term reliability, A286 / AISI 660 / UNS S66286 / GH2132 (GH132) is widely used for aerospace engine components, turbine and compressor discs, rotor blades, high-temperature fasteners, bolts, shafts, and other critical components operating in demanding environments.
Inconel 718 / Alloy 718 / UNS N07718 / GH4169 (GH169) Nickel-Based Superalloy
Inconel 718 (UNS N07718 / GH4169 / GH169) is a precipitation-hardening nickel-based superalloy developed for demanding high-temperature and high-strength applications. It offers an excellent combination of high strength, corrosion and oxidation resistance, fatigue resistance, toughness, and long-term thermal stability. The Chinese equivalent is GH4169 (GH169), with both grades belonging to the same alloy system. The alloy is strengthened primarily through γ″ (Ni₃Nb) and γ′ precipitates, allowing it to maintain excellent mechanical properties at elevated temperatures, with service capability commonly extending to around 650–700°C depending on the application and condition. It also provides good weldability, machinability, corrosion resistance, and resistance to creep and fatigue, making it highly suitable for critical engineering applications. With its outstanding combination of high-temperature strength, fatigue resistance, corrosion resistance, and structural reliability, Inconel 718 / Alloy 718 / UNS N07718 / GH4169 (GH169) is widely used for aerospace engine components, turbine and compressor parts, high-temperature fasteners, shafts, gas turbines, nuclear equipment, and oil & gas equipment. For procurement, the applicable standard and heat-treatment condition should be specified, as GH4169 and Inconel 718 are governed by different standards even though they represent the same alloy system.
Inconel 625 / Alloy 625 / UNS N06625 / GH3625 (GH625) / NS336 Nickel-Based Superalloy
Inconel 625 (UNS N06625) is a nickel-chromium-molybdenum-niobium solid-solution strengthened nickel-based superalloy developed for demanding high-temperature and highly corrosive environments. It offers an excellent combination of high strength, outstanding corrosion and oxidation resistance, fatigue resistance, toughness, and good weldability and processability. The commonly used Chinese designations are GH3625 / GH625, with NS336 also used in Chinese standards. The alloy is primarily strengthened by molybdenum and niobium and maintains excellent mechanical and fatigue performance from low temperatures to approximately 980°C. Its high chromium content provides strong resistance to oxidation and corrosion, including resistance to stress corrosion in salt-spray environments. The alloy also offers good hot- and cold-forming and welding characteristics, making it suitable for a wide range of demanding manufacturing applications. With its outstanding combination of high-temperature performance, corrosion resistance, fatigue strength, and reliability, Inconel 625 / Alloy 625 / UNS N06625 / GH3625 (GH625) / NS336 is widely used for aerospace engine components, spacecraft structures, chemical-processing equipment, oil & gas equipment, marine applications, heat exchangers, and other high-performance engineering components.
Inconel X-750 / Alloy X-750 / UNS N07750 / GH4145 (GH145) Nickel-Based Superalloy
Inconel X-750 (UNS N07750 / GH4145 / GH145) is a precipitation-hardening nickel-chromium-iron superalloy developed for demanding high-temperature, high-strength, and corrosion-resistant applications. It provides an excellent combination of high-temperature strength, oxidation and corrosion resistance, creep resistance, stress-rupture strength, and good fabrication performance. The Chinese equivalent is GH4145 (GH145). The alloy is strengthened primarily through precipitation of the γ′ phase [Ni₃(Al,Ti,Nb)], allowing it to retain high strength and stability at elevated temperatures. It offers good oxidation and corrosion resistance below approximately 980°C, high strength below about 800°C, and good resistance to stress relaxation at lower temperatures. It also provides good forming and welding characteristics. With its excellent combination of high-temperature strength, oxidation resistance, creep resistance, and long-term reliability, Inconel X-750 / Alloy X-750 / UNS N07750 / GH4145 (GH145) is widely used for aerospace engine components, gas turbines, high-temperature springs, fasteners, turbine parts, nuclear power equipment, heat exchangers, and other critical high-temperature engineering applications.
Inconel 600 / Alloy 600 / UNS N06600 / GH3600 (GH600) / NS312 Nickel-Based Alloy
Inconel 600 (UNS N06600) is a nickel-chromium-iron solid-solution strengthened alloy developed for demanding high-temperature and corrosive environments. It offers an excellent combination of corrosion resistance, oxidation resistance, high-temperature performance, toughness, and good fabrication characteristics. The commonly used Chinese designations are GH3600 (GH600) and NS312. The alloy provides excellent resistance to oxidation and corrosion, particularly in chloride-containing and various organic and inorganic environments, while maintaining good mechanical properties and high plasticity at elevated temperatures. It has good hot- and cold-working and welding characteristics, and can also be strengthened through cold working. Inconel 600 is suitable for service from cryogenic temperatures to elevated temperatures approaching 1093°C, depending on loading and environment. With its outstanding combination of corrosion resistance, oxidation resistance, high-temperature stability, weldability, and reliability, Inconel 600 / Alloy 600 / UNS N06600 / GH3600 (GH600) / NS312 is widely used for aerospace and aircraft-engine components, chemical and petrochemical equipment, heat-treatment equipment, heat exchangers, nuclear applications, food-processing equipment, and other demanding high-temperature and corrosive-service applications.
Waspaloy / UNS N07001 / GH4738 (GH738) / W.Nr. 2.4654 Nickel-Based Superalloy
Waspaloy (UNS N07001 / GH4738 / GH738) is a precipitation-hardening nickel-based superalloy designed for demanding high-temperature, high-strength, and corrosion-resistant applications. It provides an excellent combination of high-temperature strength, creep and stress-rupture resistance, fatigue performance, and oxidation resistance. The Chinese equivalent is commonly designated GH4738 (GH738). The alloy is strengthened through γ′ (gamma-prime) precipitation, with aluminum and titanium providing precipitation strengthening and chromium, cobalt, and molybdenum contributing to solid-solution strengthening. Waspaloy maintains excellent strength and stability at elevated temperatures and is particularly suitable for critical rotating components operating around 650°C and above, depending on the application and material condition. With its outstanding combination of high-temperature strength, creep resistance, fatigue performance, oxidation resistance, and long-term reliability, Waspaloy / UNS N07001 / GH4738 (GH738) / W.Nr. 2.4654 is widely used for aerospace engine turbine discs, compressor and rotor discs, shafts, rings, seals, casings, high-temperature fasteners, gas turbines, and other critical high-temperature engineering components.
Waspaloy / UNS N07001 / GH4738 (GH738) / W.Nr. 2.4654 Nickel-Based Superalloy
Waspaloy (UNS N07001 / GH4738 / GH738) is a precipitation-hardening nickel-based superalloy designed for demanding high-temperature, high-strength, and corrosion-resistant applications. It provides an excellent combination of high-temperature strength, creep and stress-rupture resistance, fatigue performance, and oxidation resistance. The Chinese equivalent is commonly designated GH4738 (GH738). The alloy is strengthened through γ′ (gamma-prime) precipitation, with aluminum and titanium providing precipitation strengthening and chromium, cobalt, and molybdenum contributing to solid-solution strengthening. Waspaloy maintains excellent strength and stability at elevated temperatures and is particularly suitable for critical rotating components operating around 650°C and above, depending on the application and material condition. With its outstanding combination of high-temperature strength, creep resistance, fatigue performance, oxidation resistance, and long-term reliability, Waspaloy / UNS N07001 / GH4738 (GH738) / W.Nr. 2.4654 is widely used for aerospace engine turbine discs, compressor and rotor discs, shafts, rings, seals, casings, high-temperature fasteners, gas turbines, and other critical high-temperature engineering components.
M2 / W6Mo5Cr4V2 / AISI M2 / UNS T11302 / SKH51 High-Speed Tool Steel
M2 (AISI M2 / UNS T11302 / W6Mo5Cr4V2) is a molybdenum–tungsten type high-speed tool steel (HSS) offering an excellent combination of high hardness, wear resistance, toughness, and red hardness. It is a widely used general-purpose HSS grade designed to maintain cutting performance and hardness under elevated temperatures. The alloy contains significant amounts of tungsten, molybdenum, chromium, and vanadium, which contribute to its hardness, wear resistance, and high-temperature performance. After appropriate heat treatment, M2 can achieve hardness levels around 62–65 HRC, while maintaining good toughness compared with many other high-speed steels. With its excellent combination of hardness, wear resistance, toughness, and red hardness, M2 / W6Mo5Cr4V2 / AISI M2 / UNS T11302 / SKH51 / 1.3343 is widely used for drill bits, milling cutters, taps, reamers, saw blades, broaches, punches, dies, and other high-speed cutting and wear-resistant tools.
M35 / AISI M35 / UNS T11335 / W6Mo5Cr4V2Co5 / SKH55 High-Speed Tool Steel
M35 (AISI M35 / UNS T11335) is a cobalt-bearing molybdenum–tungsten high-speed tool steel (HSS) containing approximately 5% cobalt. Compared with M2, the addition of cobalt provides higher hot hardness, improved tempering resistance, wear resistance, and cutting performance, making M35 particularly suitable for demanding high-speed and heavy-duty machining applications. The Chinese equivalent is W6Mo5Cr4V2Co5, while other commonly recognized designations include JIS SKH55, EN/DIN 1.3243 (HS6-5-2-5), and ISO HS6-5-2-5. After appropriate heat treatment, M35 typically achieves approximately 64–66 HRC, while maintaining good toughness and red hardness for high-temperature cutting operations. With its excellent combination of hardness, hot hardness, wear resistance, toughness, and cutting performance, M35 / AISI M35 / UNS T11335 / W6Mo5Cr4V2Co5 / SKH55 / 1.3243 is widely used for drill bits, taps, end mills, milling cutters, gear hobs, broaches, reamers, saw blades, and other high-performance cutting tools, particularly for machining stainless steel, high-strength steels, and difficult-to-machine materials.
M42 / AISI M42 / UNS T11342 / W2Mo9Cr4VCo8 / SKH59 High-Speed Tool Steel
M42 (AISI M42 / UNS T11342) is a cobalt-bearing molybdenum–tungsten high-speed tool steel (HSS) designed for high-performance cutting applications. With its high cobalt content, it offers an excellent combination of very high hardness, superior hot hardness, wear resistance, and cutting performance, particularly when machining difficult-to-cut materials. The Chinese equivalent is W2Mo9Cr4VCo8, specified under GB/T 9943, while commonly recognized international designations include JIS SKH59, ISO HS2-9-1-8, DIN/EN 1.3247, and UNS T11342. After appropriate heat treatment, M42 can achieve approximately 66–70 HRC, providing excellent red hardness and wear resistance for demanding machining operations. With its outstanding combination of hardness, hot hardness, wear resistance, and cutting performance, M42 / AISI M42 / UNS T11342 / W2Mo9Cr4VCo8 / SKH59 / 1.3247 is widely used for drills, taps, milling cutters, broaches, gear hobs, reamers, form tools, and other precision cutting tools, particularly for machining stainless steel, titanium alloys, nickel-based superalloys, high-strength steels, and other difficult-to-machine materials.