Cov kav hlau tau muab faib ua cov kav hlau tsis sib haum thiab cov kav hlau welded (seamed kav).

Boiler raj yog ib hom seamless raj. Txoj kev tsim khoom yog tib yam li cov yeeb nkab seamless, tab sis muaj cov kev cai nruj ntawm cov qib steel siv rau kev tsim cov kav hlau. Raws li kev siv qhov kub thiab txias, nws tuaj yeem muab faib ua cov raj dej dav dav thiab cov raj kub siab boiler.

1) Cov qib steel ntawm high-zoo carbon structural steel yog 20G, 20MnG thiab 25MnG.

2) Alloy structural steel qib 15MoG, 20MoG, 12CrMoG, 15CrMoG, 12Cr2MoG, 12CrMoVG, 12Cr3MoVSiTiB, thiab lwm yam.

Seamless Steel Tubes rau Tsawg thiab Nruab Nrab Siab Boilers (GB3087-2008), Seamless Steel Tubes rau High Pressure Boilers (GB5310-2008), ASME SA-106, ASME SA-213, ASTM A335 Cov Lus Qhia Tshwj Xeeb

Tsis tas li ntawd, peb lub tuam txhab tseem ua haujlwm seamless steel kav rau cov qauv (GB/T 81628163), seamless steel kav rau roj av tawg (wb 9948), seamless steel kav rau high-pressure chiv (wb 6479), roj pipeline kav (API 5L) thiab roj casing kav (API 5 CT), thiab alloy yeeb nkab fittings.