Specialized industrial wire rods and bars for spring, cold heading, welding, and engineering applications — direct from Baowu Xinsteel.
High-quality wire rod coils for drawing, cold heading, welding, and spring applications. Diameter range 5.5–22.0mm in coil form (1.9–2.6t per coil).
| Category | Representative Grades | Diameter (mm) | Standard |
|---|---|---|---|
| Carbon Steel | 60, 65, 70, 75 | 5.5 – 12.5 | GB/T 4354 |
| Spring Steel | 65Mn, 65Mn-CT, 50CrVA, 60Si2Mn | 5.5 – 22.0 | GB/T 1222 |
| High-Carbon | SWRH82B-YL, SWRH82B-T, SWRH62A–SWRH82A | 5.5 – 12.5 | JIS G 3506 |
| Cold Heading | ML04Al, ML08Al, ML40Cr, SWRCH6A–SWRCH50K | 5.5 – 22.0 | JIS G 3507 / GB/T 6478 |
| Welding Wire | SWRY11, H08A, H10Mn2, ER50-6 (H11Mn2Si) | 5.5 – 12.5 | GB/T 3429 |
Hot-rolled round bars for machining, forging, and engineering applications. Diameter range 20–90mm in straight lengths.
| Category | Representative Grades | Diameter (mm) | Standard |
|---|---|---|---|
| Carbon Steel | 20, 30, 35, 40, 45, 50, 65Mn | 20 – 90 | GB/T 699 |
| Alloy Steel | 20Cr, 40Cr, 35CrMo, 42CrMo, 38CrMoAl | 20 – 90 | GB/T 3077 |
| Spring Steel | 55SiCr, 55SiCrV, 55Cr3, 60Si2Mn, 65Mn | 20 – 90 | GB/T 1222 |
| Cold Heading | ML20–ML35, ML20Cr, ML40Cr, ML20MnV | 20 – 90 | GB/T 6478 |
| Application | GB (China) | ASTM (USA) | BS/EN (UK/EU) | JIS (Japan) |
|---|---|---|---|---|
| Carbon Round Bar | 45 | 1045 (A29) | C45E (EN 10083) | S45C |
| Alloy Round Bar | 40Cr | 5140 (A29) | 41Cr4 (EN 10083) | SCr440 |
| Cr-Mo Bar | 42CrMo | 4140 (A29) | 42CrMo4 (EN 10083) | SCM440 |
| Spring Steel | 60Si2Mn | 9260 (A689) | 60Si7 (EN 10089) | SUP6 |