Steel grades
66 grades found.
1.8550 / 34CrAlNi7-10
1.8550 (34CrAlNi7-10) is the premium European nitriding steel: its aluminium is the nitride former that builds the extre…
100Cr6
100Cr6 is the EN designation (1.3505) of the universal 1%C–1.5%Cr bearing steel, specified under EN ISO 683-17 with defi…
16MnCr5
16MnCr5 is the most common European case-hardening steel for small-to-medium gears — the EN counterpart of the 8620 conc…
17CrNiMo6
17CrNiMo6 is the classic German case-hardening steel for large, heavily loaded gears, now carried in EN 10084 as 18CrNiM…
18CrNiMo7-6
18CrNiMo7-6 is the EN 10084 case-hardening steel (1.6587) for the largest, most heavily loaded gears in wind, marine and…
20Cr
20Cr is China’s basic carburizing chromium steel (GB/T 3077), the counterpart of AISI 5120 and JIS SCr420 for case-harde…
20CrMnTi
20CrMnTi is China’s dominant carburizing gear steel (GB/T 3077): a Cr-Mn steel micro-alloyed with titanium for grain con…
20CrMo
20CrMo is the GB/T 3077 chromium-molybdenum carburizing steel — the molybdenum-bearing counterpart of 20Cr and the Chine…
20MnCr5
20MnCr5 is the European Mn-Cr carburizing steel for larger gears and shafts, with higher core strength than 16MnCr5.…
30CrMnSiA
30CrMnSiA is a Chinese high-strength structural steel (GB/T 3077, of the Soviet 30KhGSA lineage) that reaches 1080 MPa c…
30CrNiMo8
30CrNiMo8 is a high-hardenability EN Q&T steel (1.6580) with about 2% each of chromium and nickel. It is specified for l…
34CrMo4
34CrMo4 is the EN Q&T Cr-Mo steel (1.7220) one step below 42CrMo4, the European counterpart of the 4135/SCM435 family. I…
34CrNiMo6
34CrNiMo6 is the EN Ni-Cr-Mo Q&T steel (1.6582) for wind-energy shafts, large gears and heavy machinery. Its balanced 1.…
35CrMo
35CrMo is the GB/T 3077 Cr-Mo steel between 4130 and 4140 in carbon, matching AISI 4135 and JIS SCM435 — a staple Chines…
38CrMoAlA
38CrMoAlA is China’s standard nitriding steel (GB/T 3077): the 0.70–1.10% aluminium addition gives an exceptionally hard…
40Cr
40Cr is China’s most-used alloy structural steel (GB/T 3077) — a Cr steel equivalent to AISI 5140 and JIS SCr440, stocke…
40CrNiMoA
40CrNiMoA is the GB/T 3077 Ni-Cr-Mo steel corresponding to AISI 4340 — China’s high-hardenability grade for large, highl…
4118
4118 is a low carbon Cr-Mo carburizing steel, the economy case-hardening grade of the 41xx family. Its small molybdenum …
4130
4130 is a low-alloy Cr-Mo steel famous for weldable high strength in tube form — aircraft structures, racing chassis, bi…
4135
4135 is the mid-carbon Cr-Mo Q&T steel one step below 4140, matching JIS SCM435 and GB 35CrMo almost exactly. It is a st…
4140
4140 is the most popular Cr-Mo engineering steel in the world: a through-hardening grade for shafts, gears, bolts and hy…
4142
4142 is a Cr-Mo steel a touch higher in carbon than 4140, giving slightly higher attainable hardness at the cost of toug…
4145
4145 is the high-carbon end of the standard Cr-Mo bar family, widely specified in oilfield practice (drill collars, subs…
4150
4150 is a 0.50% carbon Cr-Mo steel for parts needing high Q&T strength and wear resistance: gun barrels, heavy gears and…
4161
4161 is a spring-range Cr-Mo steel: 5160-class carbon and chromium with molybdenum added for temper resistance and throu…
42CrMo4
42CrMo4 is the EN quenched-and-tempered Cr-Mo steel (1.7225), the European counterpart of AISI 4140 and one of the highe…
4320
4320 is a Ni-Cr-Mo carburizing steel whose ~1.8% nickel gives a markedly tougher core than 8620. It is specified for lar…
4340
4340 is a Ni-Cr-Mo steel with deep hardenability and high fatigue strength, used where 4140 runs out of section size or …
4620
4620 is a Ni-Mo carburizing steel without chromium: the nickel-molybdenum pair gives a tough, ductile core and a case th…
4720
4720 is a mid-nickel Ni-Cr-Mo carburizing steel between 8620 and 4320 in cost and core toughness. It serves medium-duty …
4815
4815 is a high-nickel (3.5%) Ni-Mo carburizing steel for premium gears needing maximum core toughness and case fatigue r…
4820
4820 is the higher-carbon companion of 4815 in the 3.5% nickel carburizing family, giving a stronger core at the same ca…
50CrVA
50CrVA is China’s GB/T 1222 designation of the global 51CrV4 / AISI 6150 spring steel — the vanadium-bearing Cr spring g…
5120
5120 is a chromium case-hardening steel for small gears and wear parts. With about 0.8% chromium it forms a hard carburi…
5130
5130 is a medium carbon chromium steel for moderately loaded Q&T parts. It offers a hardenability step above 1030/5140-c…
5140
5140 is a medium-carbon chromium steel for moderately loaded shafts, gears and bolts — the chromium-only (no molybdenum)…
5150
5150 is a medium-high carbon chromium steel used for stronger springs, axles and gears. It is the chromium-step between …
5160
5160 is the classic chromium spring steel of the Americas, standard for vehicle leaf springs and agricultural blades. It…
5195
5195 is a high carbon chromium steel closely related to the bearing steel family, used where 1095-class hardness is need…
52100
52100 is the world-standard through-hardening bearing steel (ASTM A295): about 1% carbon and 1.5% chromium, hardened to …
55Cr3
55Cr3 is the EN chromium spring steel (1.7176) for hot-rolled spring bar and flat products. It occupies the same niche a…
55Si7
55Si7 (1.5026) is the classic silicon spring steel of EN 10089: 1.6–2.0% silicon raises the elastic limit and temper res…
60Si2CrA
60Si2CrA is the chromium-upgraded silicon spring steel of GB/T 1222: adding ~1% Cr to the 60Si2Mn base raises hardenabil…
60Si2Mn
60Si2Mn is China’s standard silicon-manganese spring steel (GB/T 1222), produced in very large tonnage for vehicle and m…
6150
6150 is a Cr-V spring steel: the vanadium refines grain and lifts fatigue strength, making it the premium choice for hig…
8115
8115 is a lean triple-alloy (Ni-Cr-Mo) carburizing steel designed for economical case hardening of small parts. Small ad…
8615
8615 is the low-carbon member of the 86xx triple-alloy carburizing family, sharing 8620 alloy content at slightly lower …
8617
8617 is a carburizing steel midway between 8615 and 8620 in carbon content, with the same Ni-Cr-Mo alloy package. Many m…
8620
8620 is the standard carburizing (case-hardening) gear steel of the Americas: a low-carbon Ni-Cr-Mo grade that forms a h…
8630
8630 is a Q&T Ni-Cr-Mo steel for cast and forged parts — wellheads, valves and aircraft components — where its castabili…
8640
8640 is the 0.40% carbon triple-alloy Q&T steel: 4140-class strength with nickel for extra toughness, common in aircraft…
8740
8740 is chemically 8640 with a higher molybdenum floor, specified where a guaranteed minimum hardenability response is r…
9255
9255 is a Si-Cr spring steel combining the sag resistance of silicon with chromium hardenability. It serves coil and lea…
9260
9260 is a silicon-manganese spring steel with about 2% silicon, giving an exceptionally high yield-to-tensile ratio and …
9840
9840 is a Ni-Cr-Mo through-hardening steel popular in Latin American specifications for shafts and high-strength parts —…
GCr15
GCr15 is China’s standard bearing steel (GB/T 18254), the domestic designation of the 52100/100Cr6/SUJ2 family. Chinese …
GCr15SiMn
GCr15SiMn is the high-hardenability bearing steel of GB/T 18254: extra silicon and manganese over GCr15 let large bearin…
SCM415
SCM415 is the low-carbon Cr-Mo carburizing steel of JIS G4053 — the Japanese gear and pinion grade in the AISI 4118 clas…
SCM420
SCM420 is the 0.20% carbon Cr-Mo carburizing steel of JIS G4053 (AISI 4120 class) — the standard Japanese grade for medi…
SCM430
SCM430 is the JIS G4053 chromium-molybdenum machine structural steel corresponding to AISI 4130, with a slightly higher …
SCM435
SCM435 is the JIS Cr-Mo through-hardening steel matching AISI 4135 and EN 34CrMo4 — one step below SCM440/4140 in carbon…
SCM440
SCM440 is the JIS Cr-Mo steel matching 4140/42CrMo4 — the designation on Japanese, Korean and Taiwanese certificates for…
SCr420
SCr420 is the chromium-only carburizing steel of JIS G4053, the Japanese counterpart of AISI 5120. Without molybdenum it…
SCr440
SCr440 is the JIS designation of the 5140/40Cr chromium through-hardening steel — the designation on Japanese, Korean an…
SNCM220
SNCM220 is the JIS Ni-Cr-Mo carburizing steel — the exact JIS designation of the AISI 8620 gear steel concept, and also …
SNCM439
SNCM439 is the JIS designation of the 4340 Ni-Cr-Mo through-hardening steel — deep hardenability and high fatigue streng…