41CR4 | DIN 1.7035 | AISI 5140 | 530M40 ALLOY STEEL
41Cr4/DIN 1.7035 Alloy Steel manufacturers and suppliers,supplied with round rods,square/flat bars,rollers,shafts,blocks and forging pieces.
41Cr4/1.7035 Alloy Steel is one of the most widely used alloy steel which has good comprehensive mechanical properties,low temperature impact toughness and hardenability after QT heat treatment. 41Cr4 Alloy Steel can be used in the manufacture of medium speed,the load of parts,such as machine tools gear,shaft,worm,etc.
41Cr4 Chemical Composition
| Grade | C | Si | Mn | Cr | P | S |
| 41Cr4/1.7035 | 0.38-0.45 | ≤ 0.4 | 0.6-0.9 | 0.9-1.2 | ≤ 0.025 | ≤ 0.035 |
41Cr4 Related Specifications
AISI/SAE:5140/2245
GB: 40Cr
JIS:SCr440
BS:530M40
41Cr4 Steel Heat Treatment & Mechanical Property
41Cr4 Steel Quenching
1.Quench temperature:820-860℃
2.Keep suitable time for the steel to be thoroughly heated.
3.Oil or water quench.
4.Tempering immediately after quenched.
1.Temper temperature:500-600℃
2.Air cooling.
41Cr4 Tempering Diagram
41Cr4-Mechanical Property With Quenching and Tempering
| Tensile Strength | Yield Strength | Elongation | Reduction of Area | Impact Charpy-V | Hardness |
| ≥1000Mpa | ≥800Mpa | ≥9% | ≥45% | ≥60J | 28-34HRC |
41Cr4 Hardness Vs Tempering temperature
| Temperature,℃ | 150 | 200 | 300 | 400 | 500 | 550 | 600 | 650 |
| Hardness,HRC | 55 | 53 | 51 | 43 | 34 | 32 | 28 | 24 |
41Cr4 Steel Quality Certification
A material test report(Inspection Certificate EN 10204 3.1) will be provided, documenting the following:
1.Chemical analysis
2.Mechanical properties
3.Surface hardness
4.Non metallic inclusion
5.Heat treatment report
6.Grain size
7.Forging ratio
8.Ultrasonic test report
41Cr4 Supply Size & Condition
- Round Bars: Dia.80 – 1,000mm as Forged
- Flat / Square Bars: Thickness Max.800mm
- Shafts, Rollers, Blocks: Customized or According to Drawing
- Rolled Round Bars: Dia.16 – 300mm with UT Assurance
Heat treatment:Normalized / Annealed / QT
Surface finish:Black / Rough turned / Peeled
