1.7225 SAE4140 42CrMo SCM440 Hot Rolled Black Surface Alloy Mechanical Steel Round Bar
China 1.7225 SAE4140 42CrMo SCM440 Hot Rolled Black Surface Alloy Mechanical Steel Round Bar, Find details about China alloy steel, tool steel from 1.7225 SAE4140 42CrMo SCM440 Hot Rolled Black Surface Alloy Mechanical Steel Round Bar
Basic Info.
Model NO.
SAE4140/ 42CRMO/ 1.7225 /SCM440
Delivery condition
hot rolled black surface
Diameter
10-500mm
Quality Assurance
100% UT passed
Delivery Time
7 days
Condition
ready stock
Trademark
customized
Transport Package
Standard/Customized
Specification
standard/customized
Origin
China
HS Code
7225401000
Model NO.
SAE4140/ 42CRMO/ 1.7225 /SCM440
Delivery condition
hot rolled black surface
Diameter
10-500mm
Quality Assurance
100% UT passed
Delivery Time
7 days
Condition
ready stock
Trademark
customized
Transport Package
Standard/Customized
Specification
standard/customized
Origin
China
HS Code
7225401000
Product Desciption
1.7225 SAE4140 42CrMo SCM440 Hot Rolled Black Surface Alloy Mechanical Steel Round Bar
1. Features
3. Good hardenability
2. Similar Standards
3. Chemical Composition
4. Heat Treatment
5. Stock Size
6. Product photo
1. Features
1. Belong to the ultra-high strength steel
2. High strength and toughness 3. Good hardenability
2. Similar Standards
| Chinese | American | German | Japanese | British |
| GB | AISI | DIN | JIS | BS |
| 42CrMo | SAE4140 | 1.7225 | SCM440 | EN19 |
3. Chemical Composition
| Grades | C | Si | Mn | P | S | Cr | Mo | Cu | Ni |
| 4140 | 0.38-0.45 | 0.17-0.37 | 0.5-0.8 | ≤0.035 | ≤0.035 | 0.9-1.2 | 0.15-0.25 | ≤0.3 | ≤0.035 |
| 42CrMo | 0.38-0.45 | 0.17-0.35 | 0.5-0.8 | ≤0.035 | ≤0.035 | 0.9-1.2 | 0.15-0.25 | ≤0.03 | ≤0.03 |
| 440 | 0.38-0.43 | 0.15-0.35 | 0.6-0.85 | ≤0.03 | ≤0.03 | 0.9-1.2 | 0.15-0.3 | ≤0.3 | ≤0.25 |
4. Heat Treatment
| Quenching | Tempering | ||||
| Heating Temperature/ºC | Cooling | Hardness/HRC | Heating Temperature/ºC | Cooling | Hardness/HRC |
| 820-840 | Oil | ≥53 | 450-650 | Air | 25-40 |
5. Stock Size
| Plate | Thickness | 20-120mm |
| Width | 2200mm | |
| Length | 4000-10000mm | |
| round bar | Diameter | 16-450mm |
| Length | 4000-10000mm |
6. Product photo
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