Qhov ntau thiab tsawg

Seamless ntawm 2 "NPS rau 36" OD

ERW los ntawm 2 "NPS rau 24" OD

DSAW los ntawm 20 "mus rau 48" OD

Scope

ANSI / API 5L qhia txog kev tsim khoom ntawm ob theem khoom (PSL1 thiab PSL2) ntawm seamless thiab welded steel yeeb nkab rau kev siv cov kav dej hauv kev thauj mus los ntawm cov roj av thiab cov nkev. Rau cov khoom siv hauv daim ntawv thov kev pabcuam qaub, xa mus rau Annex H; rau daim ntawv thov kev pabcuam offshore, xa mus rau Annex J ntawm API 5L 45th Edition.

Txheej txheem

Ingots, paj, billets, coils los yog daim hlau siv rau kev tsim cov yeeb nkab yuav tsum tau ua los ntawm cov pa oxygen yooj yim, hluav taws xob rauv los yog qhib hearth ua ke nrog ib tug ladle refining txheej txheem. Rau PSL2, cov hlau yuav tsum raug tua thiab yaj raws li kev coj ua zoo. Chev los yog phaj siv rau PSL2 yeeb nkab yuav tsum tsis muaj kev kho welds.

PSL	Kev Xa Khoom	Qib yeeb nkab
PSL1	Raws li dov, normalized, normalizing tsim	A
	Raws li-dov, normalizing dov, thermomechanical dov, thermo-mechanical tsim, normalizing tsim, normalized, normalized thiab tempered los yog pom zoo Q&T SMLS nkaus xwb	B
	Raws li-dov, normalizing dov, thermomechanical dov, thermo-mechanical tsim, normalizing tsim, normalized, normalized thiab tempered	X42, X46, X52, X56, X60, X65, X70
PSL 2	Raws li dov	BR, X42R
	Normalizing dov, normalizing tsim, normalized los yog normalized thiab tempered	BN, X42N, X46N, X52N, X56N, X60N
	Quenched thiab tempered	BQ, X42Q, X46Q, X56Q, X60Q, X65Q, X70Q, X80Q, X90Q, X100Q
	Thermomechanical dov los yog thermomechanical tsim	BM, X42M, X46M, X56M, X60M, X65M, X70M, X80M
	Thermomechanical dov	X90M, X100M, X120M
	Qhov txaus (R, N, Q lossis M) rau qib PSL2, belongs rau qib steel

Hydrostatic xeem

Cov yeeb nkab kom tiv taus qhov kev sim hydrostatic yam tsis muaj qhov xau los ntawm cov hlua khi los yog cov yeeb nkab lub cev. Jointers tsis tas yuav tsum tau kuaj hydrostatic muab cov yeeb nkab seem siv tau zoo kuaj.