GB/T5310-2008Cov yeeb nkab hlau tsis muaj seamless yog ib hom yeeb nkab hlau zoo. Cov yeeb nkab boiler muab faib ua cov yeeb nkab boiler dav dav thiab cov yeeb nkab boiler siab siab raws li nws qhov kev ua tau zoo kub. Cov yeeb nkab boiler siab siab feem ntau yog siv rau kev tsim cov yeeb nkab boiler siab siab thiab siab dua, cov yeeb nkab thiab lwm yam hlau zoo carbon, cov hlau alloy thiab cov yeeb nkab stainless hlau tsis muaj seamless. [1] Cov yeeb nkab boiler no ua haujlwm ntawm qhov kub thiab siab, tsim cov pa roj flue kub thiab cov dej pa, uas yooj yim rau oxidation thiab corrosion.

Qib hlau

(1) Cov hlau zoo carbon steel 20G, 20MnG, 25MnG. 

(2) Cov qauv hlau alloy 15MoG, 20MoG, 12CrMoG, 15CrMoG, 12Cr2MoG, 12CrMoVG, 12Cr3MoVSiTiB, thiab lwm yam. 

(3) Cov hlau uas tiv taus cua sov feem ntau siv 1Cr18Ni9, 1Cr18Ni11Nb boiler raj ntxiv rau kom ntseeg tau tias muaj cov tshuaj lom neeg thiab cov khoom siv kho tshuab, los ua qhov kev sim siab ntawm dej, ua kom muaj kev kub hnyiab, thiab kev sim nias. Cov raj hlau raug xa tuaj rau hauv kev kho cua sov. 

Tsis tas li ntawd xwb, qhov microstructure, qhov loj ntawm cov noob thiab cov txheej decarburization ntawm cov kav hlau tiav lawm kuj tseem xav tau.

Ntxiv rau qhov siab siab boiler seamless steel tubeGB/T5310-2008hais los saum toj no, peb lub tuam txhab cov khoom tseem ceeb yog:

ASTMA210 (A10M) -2012Cov yeeb nkab steel nruab nrab thiab cov kav dej superheater seamless, cov khoom tseem ceeb yog SA210 GrA1, SA210GrC;

ASME SA106/SA-106M-2015, cov ntaub ntawv tseem ceeb yog GR.B gr.C;

ASME SA-213/SA-213M, cov khoom siv sib xyaw ua ke: T11, T12, T22 thiab T23, T91, P92, T5, T5b, T9, T21, T22, T17;

ASTM A335 / A335M – 2018, cov ntaub ntawv tseem ceeb yog: P11, P12, P22, P5, P9, P23, P91, P92, P2, thiab lwm yam.