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Product Details:
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| Color: | Silver | Surface Treatment: | Bright |
|---|---|---|---|
| Elasticity: | High | Length: | Customized |
| Hardness: | High | Size: | Customized |
| Heat Resistance: | Excellent | Material: | Spring Steel |
| High Light: | Soft Annealed Spring Steel Rod,56Si7 Spring Steel Rod,1.5026 Spring Steel Rod |
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We can supply bright steel rod after +QT heat treatment.
We supply ground bright steel according to DIN EN 10278 to tolerance class IT 6.
We supply peeled round material according to DIN EN 10278 in tolerance class IT 11 or IT 9. Other tolerances can be supplied upon request.
The first stage, if the material is unfinished, starts with a rough abrasive (perhaps 60 or 80 grit) and each subsequent stage uses a finer abrasive, such as 120, 180, 220/240, 320, 400 and higher grit abrasives, until the desired finish is achieved.
Drawn bright steel is produced from hot-rolled steel bar or wire by chipless drawing.
We supply drawn bright steel in a wide range of cross-sectional shapes according to DIN EN 10278 in tolerance class IT 11 or IT 9.
| BS: 251A58 |
| AFNOR: 55Si7RR,56SC7 |
| SAE:9255 |
| Name | Number | C | Si | Mn | P | S |
| max. | max. | |||||
| 56Si7 | 1.5026 | 0,52-0,60 | 1,60-2,00 | 0,60-0,90 | 0,025 | 0,025 |
Steel for different types of springs as leaf springs, helical springs, belleville washers .
| Hot forming: | 1050 - 850°C |
| Hot deformation: | 900 - 830°C |
| Normalising: | 850 - 880°C |
| Soft annealing: | 650 - 690°C |
| Hardening: | 840 - 870°C/oil min. 55 HRC or 600 HV as quenched |
| Condition of delivery | Soft annealed (+A) or soft annealed and slightly rerolled (+LC) | Quenched and tempered (+QT) |
| 0,2% proof stress Rp0,2 [N/mm²] | max. 600 | 1200 - 1700 |
| Tensile strength Rm [N/mm²] | max. 740 | - |
| Fracture elongation A80 [%] | min. 12 | - |
| Hardness [HV] | max. 230 | 370 - 520 |
| Hardness [HRB] | max. 96 | - |
| Hardness [HRC] | - | 38,5 - 50,5 |
| Effective thickness [mm] | 0,30<=0,50 | 0,50<=0,75 | 0,75<=1,00 | 1,00<=1,50 | 1,50<=2,00 | 2,00<=3,00 |
| Hardness [HV] | 485 - 535 | 465 - 515 | 455 - 505 | 445 - 495 | 425 - 475 | 415 - 465 |
Contact Person: Ms. Florence Tang
Fax: 86-731-89853933
