Seamless steel kav yuav muab faib ua ASTM American standard seamless steel kav, DIN German txheem seamless steel kav, JIS Japanese txheem seamless steel kav, GB lub teb chaws seamless steel kav, API seamless steel kav thiab lwm yam raws li lawv cov qauv. ASTM American tus qauv seamless steel kav feem ntau siv thoob ntiaj teb, thiab lawv hom muaj ntau haiv neeg. Qhov cuam tshuam tsis zoo ntawm ASTM seamless steel kavASTM a 179, 179/ 179m / sa179 / sa-179m American standard seamless steel kav muaj npe raws li hauv qab no
daim ntawv thov
Haum rau cov kav dej steel siv hauv tubular heat exchangers, condensers thiab cov khoom siv hluav taws xob zoo sib xws.
Qib steel yeeb nkab
A179, SA179
Mechanical zog:
| Txuj | Qib | Tensile zog (MPa) | Yield zog (MPa) | Elongation: (%) |
| ASTM A179 / ASME SA179 | A179/SA179 | ≥325 | ≥180 | ≥35 |
Tshuaj muaj pes tsawg leeg:
| Txuj | Qib | Tshuaj muaj pes tsawg leeg,% | |||||||||
| C | Si | Mn | P | S | Cr | Mo | Cu | Ni | V | ||
| ASTM A179 Cov khoom lag luam | A179 | 0.06–0.18 dr hab | / | 0.27-0.63 Nws | ≤ 0.035 | ≤ 0.035 | / | / | / | / | / |
Lus ceeb toom:
| HR: kub dov | CW: txias ua haujlwm | SR: Kev ntxhov siab |
| A: annealed | N: normalized | HF |
Seamless steel yeeb nkab manufacturing txheej txheem. Raws li nws cov txheej txheem tsim, seamless steel kav yog muab faib ua kub dov seamless steel kav, txias-draw seamless steel kav, punched thiab stretched seamless steel kav, thiab vertically extruded seamless steel kav. Thawj ob txheej txheem yog siv los tsim cov kav dej dav dav-caliber seamless steel kav, txoj kab uas hla feem ntau yog 8-406, thiab phab ntsa thickness feem ntau yog 2-25; ob txheej txheem tom kawg yog siv los tsim cov kav dej loj-caliber tuab-walled seamless steel kav, txoj kab uas hla feem ntau yog 406-1800, thiab phab ntsa thickness yog 20mm-220mm. Raws li nws siv, nws tuaj yeem muab faib uaseamless steel kav rau cov qauv, seamless steel kav rau cov kua dej, seamless steel kav rau boilers, thiabseamless steel kav rau roj pipelines.
Post lub sij hawm: Dec-17-2024
