●標準 GB/T8162-1999, ISO2937, ASTM
A53 ,ASTM A106, JIS G 3441,BS EN
10210-1 ●用途: 使用范圍包括用于一般結構和機械結構,大量用于建筑、機械、交通、航空、石油開采等行業的各種結構管
型號: | 外徑4.0mm~219mm
厚度 1.0mm~35.0mm | 顏色: | 黑色表面&光亮表面(根據客戶要求定制) | 重量: | 過磅結算 |
●尺寸公差 標準 | 外徑公差 | 厚壁公差 | GB/T 8162 | D<50 | ±0.50mm | S<4mm | ±12.5% | D≥50 | ±1% | 4-20mm | +15/-12.5% | S≥20mm | ±12.5% | DIN1629 | D50 | ±0.50mm | S2Sn | +15/-10% | D48.3D48.3 | ±1% | 2SnS4Sn | +12.5/-10% | S4Sn | ±9% | ASTM A53 | D<48.3 | ±0.4/-0.79mm | ±12.5% | D≥48.3 | ±1% | ASTM A106 | D<48.3 | ±0.4/-0.79mm | ±12.5% | D48.3-114.3 | ±0.79mm | D≥114.3 | ±1.59/-0.79mm |
●力學性能
標準 | 鋼級 | 抗拉強度(MPa) | 屈服強度(MPa) | 延伸率 | <16mm | 16-30mm | GB/T 8162 | 10 | 335 | 205 | 195 | 24 | 20 | 390 | 245 | 235 | 20 | 35 | 510 | 305 | 295 | 17 | 45 | 590 | 335 | 325 | 14 | 16Mn | 490 | 325 | 315 | 21 | DIN 1629 |
| <16mm | >16mm |
| ST35 | 345-460 | 235 | 225 | 25 | ST45 | 440-550 | 255 | 245 | 21 | ST55 | 540-645 | 295 | 285 | 17 | ST52 | 490-630 | 355 | 345 | 22 | ST45 | 590-730 | 335 | 325 | 14 | ASTM A53 | A | 330 | 205 |
| B | 415 | 240 | ASTM A106 | A | 330 | 205 |
| B | 415 | 240 | C | 485 | 275 | ●化學成分 (%): 標準 | 牌號 | C | Si | Mn | P≤ | S≤ | Cu≤ | Ni≤ | Cr≤ | Mo≤ | V≤ | GB/T 8162 | 10 | 0.07-0.14 | 0.17-0.37 | 0.35-0.65 | 0.035 | 0.035 | 0.25 | 0.25 | 0.15 | / | / | 20 | 0.17-0.24 | 0.17-0.37 | 0.35-0.65 | 0.035 | 0.035 | 0.25 | 0.25 | 0.25 | / | / | 35 | 0.32-0.39 | 0.17-0.37 | 0.50-0.80 | 0.035 | 0.035 | 0.25 | 0.25 | 0.25 | / | / | 45 | 0.42-0.50 | 0.17-0.37 | 0.50-0.80 | 0.035 | 0.035 | 0.25 | 0.30 | 0.25 | / | / | 16Mn | 0.12-0.20 | 0.20-0.55 | 1.20-1.60 | 0.045 | 0.045 | 0.25 | 0.25 | 0.25 | / | / | DIN 1629 | St35 | ≤0.18 | 0.15-0.35 | 0.35-0.65 | 0.035 | 0.035 | 0.25 | 0.25 | 0.25 | / | / | St45 | ≤0.25 | 0.15-0.35 | 0.50-0.80 | 0.035 | 0.035 | 0.25 | 0.25 | 0.25 | / | / | St55 | 0.33-0.41 | 0.15-0.35 | 0.50-0.80 | 0.035 | 0.035 | 0.25 | 0.25 | 0.25 | / | / | St52 | ≤0.20 | ≤0.55 | ≤1.50 | 0.035 | 0.035 | 0.25 | 0.25 | 0.25 | / | / | ASTM A53 | CK45 | 0.42-0.50 | 0.17-0.37 | 0.50-0.80 | 0.035 | 0.035 | 0.25 | 0.25 | 0.25 | / | / | ASTM A106 | A | ≤0.25 | / | ≤0.95 | 0.05 | 0.045 | 0.40 | 0.40 | 0.40 | 0.15 | 0.08 | B | ≤0.30 | / | ≤1.20 | 0.05 | 0.06 | 0.40 | 0.40 | 0.40 | 0.15 | 0.08 | A | ≤0.25 | ≥0.10 | 0.27-0.93 | 0.035 | 0.035 | 0.40 | 0.40 | 0.40 | 0.15 | 0.08 | B | ≤0.30 | ≥0.10 | 0.29-1.06 | 0.035 | 0.035 | 0.40 | 0.40 | 0.40 | 0.15 | 0.08 | C | ≤0.35 | ≥0.10 | 0.29-1.06 | 0.035 | 0.035 | 0.40 | 0.40 | 0.40 | 0.15 | 0.08 |
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