ERW Black & Galvanized Pipe
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As per ASTM A53, BS1387, DIN2244, GB/T13793, GB/T3091, GB/T 6728, GB/T6725
Surface treatment: galvanized or coated with oil or black color to prevent rusting
Length 5.8M /6M or as per customer’s request. Minimum order: 50MT per size
| Commodity | Size | Size tolerance | Thickness | Length Tolerance |
| Circle Pipe | Φ13~Φ25.4 | ±0.10 | 0.5~1.5 | +50mm |
| Φ18~Φ25.4 | ±0.10 | 1.5~2.0 | +50mm | |
| Φ25.4~Φ34 | ±0.10 | 0.7~2.0 | +50mm | |
| Φ34~Φ50.8 | ±0.12 | 0.8~3.0 | +50mm | |
| Φ50.8~Φ79.2 | ±0.12 | 1.0~3.0 | +50mm | |
| Square Pipe | 16×16~25.4×25.4 | ±0.15 | 0.7~2.0 | +50mm |
| 30×30~50×50 | ±0.20 | 1.0~3.0 | +50mm | |
| 60×60 | ±0.15 | 0.7~2.0 | +50mm | |
| 100×100--200×200 | ±0.60 | 3.0~6.0 | +50mm | |
| Rectangle Pipe | 10×20~20×40 | ±0.20 | 0.8~1.5 | +50mm |
| 20×40~30×50 | ±0.25 | 1.0~2.5 | +50mm | |
| 25×70~38.1×76.2 | ±0.25 | 1.2~2.5 | +50mm | |
| 30×60~40×80 | ±0.30 | 1.2~2.5 | +50mm | |
| 120×60~150×250 | ±0.60 | 3.0~6.0 | +50mm | |
| Ellipse Pipe | Φ10×20~Φ20×40 | ±0.20 | 0.8~1.5 | +50mm |
| Φ30×60~Φ20×100 | ±0.30 | 1.2~2.5 | +50mm |