Alloy 30CrMo Steel Coil

Alloy 30CrMo Steel Coil

30CrMo steel is a Chinese alloy steel for engineering and machine structural use, has high strength and high toughness, and has good high temperature strength at temperatures below 500 °C. 30CrMo material also has good machinability, medium cold bending and plasticity, high hardenability, good weldability, and is generally used in the adjusted state.


Supply Range of Dimension

Width 1000-3000mm (1000-2200mm usually used)
Length 1000-12000mm or as your request

Chemical composition (wt.%)


Mechanical Properties

Rp0.2 (MPa)Rm (MPa)Impact
KV (J)
A (%)
A Z (%)DeliveryHardness HB
737 (≥)647 (≥)334113Solution & Aging, Ann, Ausaging, Q+T142



Use of 30CrMo Alloy Steel

30CrMo alloy steel can be used to manufacture steel pipes with working temperature below 400 °C, fasteners with operating temperature below 450 °C in boilers and steam turbines, nuts and flanges with working temperature below 500 °C and high pressure, and load in general machinery; Shafts, gears, bolts, studs, manipulators, high-pressure conduits and weldments in chemical equipment below 250 °C, nitrogen-hydrogen up to medium working.



30CrMo steel equivalent to US ASTM, European Union (Germany DIN EN, British BS EN, France NF EN…), Japanese JIS, and ISO standard. (For reference)

30CrMo material equivalent
ChinaUSAEuropean UnionJapanISO
StandardGradeStandardGradeStandardGrade (Steel number)StandardGradeStandardGrade
GB/T 307730CrMoAISI, SAE
AISI 4130DIN EN 10083-325CrMo4 (1.7218),
34CrMo4 (1.7220)
JIS G 4053SCM430ISO 683-125CrMo4


EN1008325CrMo4 0.22-0.29 ≤0.4 0.6-0.9 ≤0.025 ≤0.035 0.9-1.2 0.15-0.3
ASTM A2941300.28-0.330.15-0.350.4-0.6≤0.035≤0.040.8-1.10.15-0.25
JIS G4105SCM4300.28-0.330.15-0.350.6-0.85≤0.035≤0.040.9-1.20.15-0.3
GB 307730CrMo 0.26-0.34 0.17-0.37 0.4-0.7 ≤0.035 ≤0.035 0.8-1.1 0.15-0.25



More grades we can supply.

15Cr 17Cr3;20Cr 20Cr4;30Cr 34Cr4;40Cr 41Cr4;45Cr 41Cr4;
30CrMo 25CrMo4;35CrMo 34CrMo4;42CrMo 42CrMo4;
38CrMoAL 41CrAlMo7;50CrVA 51CrV4;40CrMnMo 42CrMo4;
12CrMo 13CrMo44(1.7335);15CrMo 16CrMo44(1.7337);
20CrMo 25CrMo4(1.7218);30CrMo 34CrMo4(1.7220);
35CrMo 34CrMo4(1.7220);42CrMo 42CrMo4(1.7225);
38CrMoAl 34CrAlMo5(1.8507);15CrMnMo 15CrMo5(1.7262);
20CrMnMo 20CrMo5(1.7264);35Cr 34Cr 4(1.7033);
40Cr 41Cr4(1.7034);30Mn2 28Mn6(1.5065);
35Mn2 36Mn5(1.5067)

65Mn,SAE1566,55SiMnVB, 60Si2Mn,SAE9260,SUP6 /SUP7,61SiCr7, 60C2,60CrMnBA ,51B60H,SUP11A, 20Cr, SAE2150, SCr420, 17Cr3,40Cr, SAE5140, SCr440, 41Cr4,

60CrMnA,SAE5160, SUP9A,60Cr3,40Mn2,SAE1340,SMn438,38MnB5, 42MnL 40CrL