Complaint
Name | Spring steel coil |
Heat treatment | Quench 830 °C ± 20 °C, oil cooling; tempering 540 °C ± 50 °C |
Tensile strength σb (MPa): ≥ 980 (100),Yield strength σs(MPa): ≥784(80), | |
Elongation δ10(10%):≥8,Section shrinkage ψ(%):≥30,Hardness: Hot Rolling, | |
≤302HB;Cold Pull+Heat Treatment,≤321HB. | |
Packing | Export standard packing or according to customers' requirement |
Certificate | ISO9001:2008 |
Shipment | Within10-15 workdays,25-30days when the quantity beyond 1000tons |
| Standard | AISI, ASTM, BS, DIN, GB, JIS |
| Material | S35C, S45C, S50C, S60C, S70C, S75C, 40Mn, 42Mn, 65Mn, CK67, SK4, SK5, SK85, SK7, T10A, SK551, 75Cr1, 50CrVa, 51CrV4, 30CrMo, 62Si2Mn, 60Si2Mn, Q235B, Q345B and etc. |
| Application | Building hardware tools;Leaf Spring,saw blade,clutch,shrapnel,auto manufacture,spring wire,etc. |
| Thickness | 0.08mm-5.0mm or customized |
| Width | 6.5mm-510mm or customized |
| Length | as per your requirement |
| Package | In bundle/coil, seaworthy package or as requested |
| Delivery Time | 5-7 Days |
| Payment terms | T/T, 30% as deposit and 70% before shipment. |
| Chemical Element Content For Reference | ||||
| Q195 Chemical Element Content | ||||
| C | Mn | Si | S | P |
| ≤0.12 | ≤0.50 | ≤0.30 | ≤0.040 | ≤0.035 |
| Q235 Chemical Element Content | ||||
| C | Mn | Si | S | P |
0.12~0.20% | 0.30~0.67 | ≤0.30 | ≤0.045 | ≤0.045 |
| 65Mn Chemical Element Content | ||||
| C | Mn | Si | S | P |
| 0.62~0.70% | 0.9~1.20% | 0.17~0.37% | ≤0.035 | ≤0.035 |
| Q345 Chemical Element Content | ||||
| C | Mn | Si | S | P |
| ≤0.20 | ≤1.70 | ≤0.55 | ≤ 0.040 | ≤ 0.040 |
| Mechanical Property For Reference | |||
| Grade | Yield Strength/Mpa | Tensile Strength/Mpa | Elongation / % |
| Q195 | 195 | 315~430 | 33 |
| Q235 | 235 | 375~500 | 25 |
| Q345 | 345 | 490~675 | 21 |
