尺寸与重量表
以下数值供排布与运费估算参考。关键尺寸请以最新版 ASME 标准及项目 ITP 为准。
| NPS | DN | 外径 (mm) | 壁厚 (mm) | 中心距 C/A (mm) | 重量 (kg) |
|---|---|---|---|---|---|
| 1/2" | 15 | 21.3 | 2.77 | 16 | 0.08 |
| 3/4" | 20 | 26.7 | 2.87 | 19 | 0.12 |
| 1" | 25 | 33.4 | 3.38 | 25 | 0.21 |
| 1-1/4" | 32 | 42.2 | 3.56 | 32 | 0.35 |
| 1-1/2" | 40 | 48.3 | 3.68 | 38 | 0.48 |
| 2" | 50 | 60.3 | 3.91 | 51 | 0.85 |
| 2-1/2" | 65 | 73 | 5.16 | 64 | 1.55 |
| 3" | 80 | 88.9 | 5.49 | 76 | 2.35 |
| 4" | 100 | 114.3 | 6.02 | 102 | 4.1 |
| 5" | 125 | 141.3 | 6.55 | 127 | 6.5 |
| 6" | 150 | 168.3 | 7.11 | 152 | 9.2 |
| 8" | 200 | 219.1 | 8.18 | 203 | 18.5 |
| 10" | 250 | 273.1 | 9.27 | 254 | 32 |
| 12" | 300 | 323.9 | 10.31 | 305 | 52 |
| 14" | 350 | 355.6 | 11.13 | 356 | 68 |
| 16" | 400 | 406.4 | 12.7 | 406 | 95 |
| 18" | 450 | 457.2 | 14.27 | 457 | 125 |
| 20" | 500 | 508 | 15.09 | 508 | 155 |
| 24" | 600 | 610 | 17.48 | 610 | 245 |
材质数据
化学成分
- C
- ≤ 0.30 %
- Mn
- 0.29 – 1.06 %
- P
- ≤ 0.050 %
- S
- ≤ 0.058 %
- Si
- ≥ 0.10 %
力学性能
- Tensile strength
- ≥ 415 MPa (60 ksi)
- Yield strength
- ≥ 240 MPa (35 ksi)
- Elongation
- ≥ 30 % (in 50 mm)
制造与质量保证
盐山恒臻园管道 — 集成成型、热处理、机加工与无损检测，服务出口公用工程与 EPC 项目。
制造能力
- Seamless or welded fittings per ASME B16.9; WPB material traceable to heat/lot
- Induction bending and 300–3,000 t hydraulic forming for large NPS
- Normalizing or stress-relief heat treatment per material grade and project spec
- End beveling and facing per ASME B16.25 / project weld prep
检验与放行
- PMI / OES spectroscopy for positive material identification
- Mechanical testing on representative coupons (tensile, impact when required)
- UT or RT on welds per project ITP; MT/PT on critical surfaces
- Third-party inspection (SGS, BV, TÜV) and EN 10204 3.1 mill certificates on request
工程常见问题
WPB is the standard carbon grade for general piping. For design temperatures below about −29 °C (−20 °F), project specs often require WPC or WPL6 with verified impact tests. Always follow the piping material specification on the isometric.
Yes. Long-radius (LR) 90° elbows use A = 1.5 × NPS in inches (converted to mm in this table). Tolerances follow ASME B16.9 unless the purchase order references MSS SP-43 or a stricter project addendum.
Yes. Typical export supply includes ASME B16.25 bevel (37.5° ± 2.5°) on carbon steel; compound bevels and J-prep can be quoted from isometrics.
Weights listed are approximate single-piece masses for carbon steel LR elbows at SCH 40 wall, useful for freight and supporting estimates. Certified weights may be shown on packing lists after final dimensional inspection.
快速询价
请注明数量、目的港与所需证书，我们将回复出厂价与交期。