ERW yeeb nkab txheemyog raws li nram no:
API 5L, ASTM A53 B, ASTM A178, ASTM A500/501, ASTM A691, ASTM A252, ASTM A672

API 5L Standard aims rau roj thiab dej hauv roj thiab roj kev lag luam rau kev siv, uas yog siv rau seamless steel yeeb nkab thiab welded steel yeeb nkab, nrog rau cov chaw nres nkoj thiab chaw nres nkoj, yeeb nkab qhov chaw nres nkoj thiab ncaj kwj raj (TFL) thiab chaw nres nkoj muaj rau ib tug tshwj xeeb. kev sib txuas raj ua.

ASTM A53 yeeb nkab yog npaj rau kev siv tshuab thiab kev siv siab thiab tseem siv tau rau kev siv zoo tib yam hauv chav dej, dej, roj thiab cua.

ASTM A178 cov qauv rau hluav taws xob-tiv taus-welded raj nrog qhov tsawg kawg nkaus-phab ntsa-thickness ua los ntawm carbon steel thiab carbon-manganese hlau siv rau hauv boiler raj, boiler flues, superheater flues, thiab kev nyab xeeb kawg.

ASTM A500 npog txias-tsim welded thiab seamless carbon steel puag ncig, square, rectangular, los yog tshwj xeeb zoo zoo structural tubing rau welded, riveted, los yog bolted kev tsim kho ntawm cov choj thiab cov tsev, thiab rau cov qauv siv dav dav.

ASTM A691 npog carbon thiab alloy steel yeeb nkab, hluav taws xob-fusion-welded nrog muab tub lim hlau ntxiv, fabricated los ntawm lub siab-cov nkoj-zoo phaj ntawm ntau yam kev soj ntsuam thiab lub zog theem thiab haum rau high-pressure kev pab cuam ntawm kub kub.

ASTM A252 npog nominal phab ntsa cylindrical steel yeeb nkab pawg nyob rau hauv uas lub tog raj kheej steel ua raws li ib tug mus tas li load-nqa cov tswv cuab los yog raws li ib tug plhaub los tsim cam khwb cia-nyob rau hauv-qhov chaw qhob pawg.

ASTM A672 npog hluav taws xob-fusion-welded steel yeeb nkab rau kev pabcuam siab kub ntawm nruab nrab.