Cov kav hlau tsis muaj qhov txuas tuaj yeem muab faib ua ASTM American tus qauv seamless steel kav, DIN German tus qauv seamless steel kav, JIS Japanese tus qauv seamless steel kav, GB lub teb chaws seamless steel kav, API seamless steel kav thiab lwm hom raws li lawv cov qauv. ASTM American tus qauv seamless steel kav feem ntau siv thoob ntiaj teb, thiab lawv cov hom muaj ntau yam. Cov yam ntxwv tseem ceeb ntawm ASTM seamless steel kavASTM a179/179m/sa179/sa-179m Cov kav hlau tsis muaj seamless Asmeskas tau teev raws li hauv qab no
daim ntawv thov
Haum rau cov kav dej hlau siv rau hauv cov khoom siv hloov cua sov tubular, condensers thiab cov khoom siv hloov cua sov zoo sib xws.
Qib yeeb nkab hlau
A179, SA179
Cov khoom siv kho tshuab:
| Tus Qauv | Qib | Lub zog tensile (MPa) | Lub Zog Tawm (MPa) | Kev ntev: (%) |
| ASTM A179/ASME SA179 | A179/SA179 | ≥325 | ≥180 | ≥35 |
Cov tshuaj lom neeg muaj pes tsawg leeg:
| Tus Qauv | Qib | Cov kev txwv ntawm cov tshuaj lom neeg,% | |||||||||
| C | Si | Mn | P | S | Cr | Mo | Cu | Ni | V | ||
| ASTM A179 | A179 | 0.06 ~ 0.18 | / | 0.27 ～ 0.63 | ≤0.035 | ≤0.035 | / | / | / | / | / |
Cov Lus Cim:
| HR: kub dov | CW: ua haujlwm txias | SR: kev ntxhov siab txo qis |
| A: annealed | N: ua kom zoo li qub | HF |
Cov txheej txheem tsim cov yeeb nkab hlau tsis muaj qhov txuas. Raws li nws cov txheej txheem tsim khoom, cov yeeb nkab hlau tsis muaj qhov txuas raug muab faib ua cov yeeb nkab hlau kub dov, cov yeeb nkab hlau txias rub, cov yeeb nkab hlau tsis muaj qhov txuas punched thiab ncab, thiab cov yeeb nkab hlau tsis muaj qhov txuas vertically extruded. Ob txoj kev ua thawj zaug yog siv los tsim cov yeeb nkab hlau tsis muaj qhov txuas dav dav, qhov txoj kab uas hla feem ntau yog 8-406, thiab phab ntsa tuab feem ntau yog 2-25; ob txoj kev ua tom kawg yog siv los tsim cov yeeb nkab hlau loj-caliber tuab-phab ntsa seamless, qhov txoj kab uas hla feem ntau yog 406-1800, thiab phab ntsa tuab yog 20mm-220mm. Raws li nws siv, nws tuaj yeem muab faib uacov kav hlau tsis muaj seamless rau cov qauv, cov kav hlau tsis muaj seamless rau cov kua dej, cov yeeb nkab hlau tsis muaj seamless rau cov boilers, thiabcov kav hlau tsis muaj seamless rau cov kav dej roj.
Lub sijhawm tshaj tawm: Lub Kaum Ob Hlis-17-2024
