国标无缝镀锌管,无缝镀锌管,热镀锌无缝管
供应国标热镀锌无缝管价格，镀锌无缝管加钱，镀锌钢管DN200
●标准:
GB/T8162-2008， ***2937， ASTM A53 ，ASTM A106，
BS EN 10210-1
●用途:
使用范围包括用于一般结构和机械结构，大量用于建筑、机械、交通、航空、石油开采等行业的各种结构管
●尺寸公差:
| 标准 | 外径公差 | S/D | 厚壁公差 |
| GB/T 8162 | D≤102 | ±1%或±0.50mm，取其中较大者 | —— | ±12.5%S |
| D＞102 | ≤0.05 | ±15%S |
| ＞0.05～0.10 | ±12.5%S |
| ＞0.10 | +12.5%/-10%S |
| DIN1629 | D50 | ±0.50mm | S2Sn | +15/-10% |
| D48.3D48.3 | ±1% | 2SnS4Sn | +12.5/-10% |
| S4Sn | ±9% |
| ASTM A53 | D≤48.3 | ±0.4mm | +15%/-12.5%S |
| D≥60.3 | ±1% |
| ASTM A106 | D≤48.3 | ±0.4mm | +15%/-12.5%S |
| D48.3-114.3 | ±0.8mm |
| D141.3-219.1 | +1.6/-0.8mm |
| D273.0-457 | +2.4/-0.8mm |
●力学性能:
| 标准 | 钢级 | 抗拉强度(MPa) | 屈服强度(MPa) ≥ | 延伸率 |
<16mm<>| 16-30mm | | GB/T 8162 | 10 | ≥335 | 205 | 195 | 24 | | 20 | ≥410 | 245 | 235 | 20 | | 35 | ≥510 | 305 | 295 | 17 | | 45 | ≥590 | 335 | 325 | 14 | | Q345B | 470-630 | 345 | 325 | 21 | | DIN 1629 | | ≤16mm | >16mm | | | ST37.0 | 350-480 | 235 | 225 | 25 | | ST44.0 | 420-550 | 275 | 245 | 21 | | ST52.0 | 500-650 | 355 | 345 | 21 | | EN10210-1 | S355 | 490-630 | 355 | 345 | 22 | | ASTM A53 | A | ≥330 | ≥205 | 计算 | | B | ≥415 | ≥240 | | ASTM A106 | A | ≥330 | ≥205 | | B | ≥415 | ≥240 | | C | ≥485 | ≥275 |
●化学成分(%):
| 标准 | 牌号 | C | Si | Mn | P≤ | S≤ | Cu≤ | Ni≤ | Cr≤ | Mo≤ | V≤ | | GB/T 8162 | 10 | 0.07-0.13 | 0.17-0.37 | 0.35-0.65 | 0.030 | 0.030 | 0.25 | 0.30 | 0.15 | / | / | | 20 | 0.17-0.23 | 0.17-0.37 | 0.35-0.65 | 0.030 | 0.030 | 0.25 | 0.30 | 0.25 | / | / | | 35 | 0.32-0.39 | 0.17-0.37 | 0.50-0.80 | 0.030 | 0.030 | 0.25 | 0.30 | 0.25 | / | / | | 45 | 0.42-0.50 | 0.17-0.37 | 0.50-0.80 | 0.030 | 0.030 | 0.25 | 0.30 | 0.25 | / | / | | Q345B | ≤0.20 | ≤0.50 | ≤1.70 | 0.035 | 0.035 | 0.30 | 0.50 | 0.30 | 0.10 | 0.15 | | DIN 1629 | St37.0 | ≤0.17 | / | / | 0.040 | 0.040 | 0.25 | 0.25 | 0.25 | / | / | | St44.0 | ≤0.21 | / | / | 0.040 | 0.040 | 0.25 | 0.25 | 0.25 | / | / | | St52.0 | ≤0.22 | ≤0.55 | ≤1.60 | 0.040 | 0.035 | 0.25 | 0.25 | 0.25 | / | / | | EN 10210-1 | S355 | ≤0.22 | ≤0.55 | ≤1.60 | 0.035 | 0.035 | 0.25 | 0.25 | 0.25 | / | / | | ASTM A53 | 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 | 0.045 | 0.40 | 0.40 | 0.40 | 0.15 | 0.08 | | ASTM A106 | 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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