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
| Thickness | 0.1---20mm |
| Width | 1000-3000mm (1000-2200mm usually used) |
| Length | 1000-12000mm or as your request |
Chemical composition (wt.%)
| C(％) | Si(％) | Mn(％) | Cr(％) | Mo(％) |
|---|---|---|---|---|
| 0.26-0.34 | 0.17-0.37 | 0.40-0.70 | 0.80-1.10 | 0.15-0.25 |
Mechanical Properties
| Rp0.2 (MPa) | Rm (MPa) | Impact KV (J) | Elongation A (%) | A Z (%) | Delivery | Hardness HB |
|---|---|---|---|---|---|---|
| 737 (≥) | 647 (≥) | 33 | 41 | 13 | Solution & Aging, Ann, Ausaging, Q+T | 142 |
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.
Equivalent
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 | |||||||||||||
| China | USA | European Union | Japan | ISO | |||||||||
| Standard | Grade | Standard | Grade | Standard | Grade (Steel number) | Standard | Grade | Standard | Grade | ||||
| GB/T 3077 | 30CrMo | AISI, SAE ASTM A29/A29M | AISI 4130 | DIN EN 10083-3 | 25CrMo4 (1.7218), 34CrMo4 (1.7220) | JIS G 4053 | SCM430 | ISO 683-1 | 25CrMo4 | ||||
| Standard | Grade | C | Si | Mn | P | S | Cr | Mo |
| EN10083 | 25CrMo4 | 0.22-0.29 | ≤0.4 | 0.6-0.9 | ≤0.025 | ≤0.035 | 0.9-1.2 | 0.15-0.3 |
| 1.7218 | ||||||||
| ASTM A29 | 4130 | 0.28-0.33 | 0.15-0.35 | 0.4-0.6 | ≤0.035 | ≤0.04 | 0.8-1.1 | 0.15-0.25 |
| JIS G4105 | SCM430 | 0.28-0.33 | 0.15-0.35 | 0.6-0.85 | ≤0.035 | ≤0.04 | 0.9-1.2 | 0.15-0.3 |
| GB 3077 | 30CrMo | 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
