Changzhou Joyruns Steel Tube CO.,LTD
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Alloy steel pipe applies to petroleum, chemical industry, electric power, boiler, high temperature resistant, low temperature resistant, corrosion resistant seamless steel pipe used.Alloy steel pipe
also can be made according to the customer.
20CrMo Steel Chemical Composition
|
| Chemical Composition (%) | |||||||
| Steel Grade | C | Si | Mn | P | S | Cr | Mo | Cu |
| 20CrMo | 0.17 to 0.24 | 0.17 to 0.37 | 0.40 to 0.70 | ≤ 0.030 | ≤ 0.030 | 0.80 to 1.10 | 0.15 to 0.25 | ≤ 0.30 |
Heat Treatment Specification
First quenching heating temperature: 880 °C (Quenching agent: water, oil)
Tempering heating temperature: 500 °C (agent – water, oil)
Equivalent Grades
20CrMo material is equivalent to US ASTM, European Germany DIN EN, British BS EN, France NF EN, Japanese JIS, and ISO standard. (For reference)
| 20CrMo steel equivalent | |||||||||||||
| China | USA | Germany | Japan | France | UK | ISO | |||||||
| Standard | Grade | Standard | Grade | Standard | Grade (Steel Number) | Standard | Grade | Standard | Grade (Steel Number) | Standard | Grade (Steel Number) | Standard | Grade |
| GB/T 3077 | 20CrMo | AISI SAE; ASTM A29/A29M | 4120 | DIN EN 10083-3 | 25CrMo4 (1.7218) | JIS G4053 | SCM420 | NF EN 10083-3, NF A35-551 | 25CrMo4 (1.7218), 18CD4 | BS EN 10083-3, BS 970 Part 1 | 25CrMo4 (1.7218), 708M20 | ISO 683-1 | 18CrMo4 |
