Since 1982 · Pressure piping components manufacturerReply in 4 h+86 132 9342 5333haihaojituan@163.com
Technical reference
Foreign procurement teams commonly specify ASTM/ASME grades; European projects use EN/DIN; Japanese/Korean projects use JIS; Chinese projects use GB. This page consolidates the most-quoted equivalents for fittings, flanges, and pipes.
Elbows, tees, reducers, caps for moderate-to-high-temperature service.
Cr-Mo creep-resistant alloys for high-temperature steam, refinery, power plant.
| ASTM / ASME | EN / DIN | JIS | GB | Service | |
|---|---|---|---|---|---|
| WP1 | 16Mo3 (1.5415) | STPA12 | 15Mo3 | ≤ 530°C | Quote |
| WP11 | 13CrMo4-5 (1.7335) | STPA22 | 12CrMo / 15CrMo | ≤ 580°C | Quote |
| WP12 | 11CrMo9-10 (1.7383) | STPA23 | 12Cr2Mo | ≤ 580°C | Quote |
| WP22 | 10CrMo9-10 (1.7380) | STPA24 | 12Cr2Mo / 12Cr2Mo1 | ≤ 600°C | Quote |
| WP5 | X11CrMo5 (1.7362) | STPA25 | 1Cr5Mo | ≤ 650°C, sulfide | Quote |
| WP9 | X11CrMo9-1 (1.7386) | STPA26 | 1Cr9Mo | ≤ 650°C | Quote |
| WP91 | X10CrMoVNb9-1 (1.4903) | STPA28 / SUS410J3 | 10Cr9Mo1VNbN | ≤ 625°C, supercritical | Quote |
Austenitic 304/316/321/347 corrosion-resistant fittings.
| ASTM / ASME | EN / DIN | JIS | GB | Service | |
|---|---|---|---|---|---|
| WP304 / 304L | X5CrNi18-10 (1.4301) / X2CrNi19-11 (1.4306) | SUS304 / SUS304L | 0Cr18Ni9 / 022Cr19Ni10 | General corrosion | Quote |
| WP316 / 316L | X5CrNiMo17-12-2 (1.4401) / X2CrNiMo17-12-2 (1.4404) | SUS316 / SUS316L | 0Cr17Ni12Mo2 / 022Cr17Ni12Mo2 | Chloride / acid service | Quote |
| WP321 | X6CrNiTi18-10 (1.4541) | SUS321 | 0Cr18Ni10Ti | ≤ 800°C, Ti-stabilized | Quote |
| WP347 | X6CrNiNb18-10 (1.4550) | SUS347 | 0Cr18Ni11Nb | ≤ 850°C, Nb-stabilized | Quote |
| WP310 | X8CrNi25-21 (1.4845) | SUS310S | 0Cr25Ni20 | High-temp, scaling resistance | Quote |
| WP-DS (Duplex 2205) | X2CrNiMoN22-5-3 (1.4462) | SUS329J3L | 022Cr22Ni5Mo3N | Pitting / chloride | Quote |
LNG, cryogenic and arctic pipelines.
Forged carbon flanges per ASME B16.5 / B16.47.
Cr-Mo forged flanges for high-temperature/high-pressure piping.
Austenitic forged flanges per ASME B16.5.
Seamless steel pipes for pressure and structural service.
Seamless / welded austenitic stainless pipes.
| ASTM / ASME | EN / DIN | JIS | GB | Service | |
|---|---|---|---|---|---|
| TP304 / TP304L | 1.4301 / 1.4306 | SUS304TP / SUS304LTP | 0Cr18Ni9 / 022Cr19Ni10 | General corrosion | Quote |
| TP316 / TP316L | 1.4401 / 1.4404 | SUS316TP / SUS316LTP | 0Cr17Ni12Mo2 / 022Cr17Ni12Mo2 | Chloride service | Quote |
| TP321 | 1.4541 | SUS321TP | 0Cr18Ni10Ti | Stabilized, ≤ 800°C | Quote |
| TP347H | 1.4912 | SUS347HTP | 0Cr19Ni10NbN | ≤ 850°C, creep | Quote |
Manufacturing Range
Standards listed above are the codes we work to. Below is the dimensional and capacity envelope we can deliver from our own shop floor.
Buttweld fittings DN range
DN 15 — DN 1500
ASME B16.9 / EN 10253 / MSS SP-75
Max flange OD
5 m
Forged + machined; ASME B16.47 Series A/B + EN 1092-1
Max forging tonnage
50 t
Custom forgings, blocks, large-OD blanks
Pressure class coverage
PN 6 — PN 400 / Class 150 — 2500
Class 150 / 300 / 600 / 900 / 1500 / 2500 (ASME B16.5 / B16.47); PN 6 - PN 400 (EN 1092-1)
Disclaimer
This cross-reference is compiled from publicly available standards and is for technical reference only. Final material specification must follow the contract technical schedule, applicable mandatory standards (PED, ASME, CE, etc.), and review by qualified materials engineers.
