US steel khoom yog nrog ntau tus qauv, feem ntau nyob rau hauv cov nram qab no pawg:

ANSI-American National Standard

AISI-American Society of Iron thiab Steel Standards

ASTM-American Society for Testing and Materials

ASME-American Society of Mechanical Engineers

AMS-Aerospace khoom specifications (ib qho ntawm feem ntau siv cov ntaub ntawv specifications nyob rau hauv lub US aviation kev lag luam, tsim los ntawm SAE)

API-American Petroleum Institute cov qauv

AWS-American Welding Association Standard

SAE-American Society of Automotive Engineers Standards

MIL- Cov qauv tub rog Asmeskas

Qq-US tsoom fwv cov qauv

API-American Petroleum Institute cov qauv

ANSI-American National Standard

ASME-American Society of Mechanical Engineers

ASTM-American Society for Testing and Materials

Cov qauv no, tag nrho yog nyob rau hauv US steel qauv, xws li ASME nyob rau hauv cov khoom siv los ntawm cov qauv yog los ntawm ASTM, lub valve nyob rau hauv tus qauv siv API, thiab me me steel yeeb nkab fittings los ntawm tus qauv ANSI.Qhov sib txawv yog nyob rau hauv qhov sib txawv ntawm qhov kev lag luam, yog li kev siv cov qauv sib txawv.API, ASTM, ASME yog cov tswv cuab ntawm ANSI.American National Standards Institute cov qauv, feem ntau los ntawm cov qauv kev tshaj lij.Ntawm qhov tod tes, cov koom haum kev tshaj lij, cov koom haum, cov pab pawg kuj tuaj yeem ua raws li cov qauv hauv tebchaws uas twb muaj lawm los tsim qee cov qauv khoom.Tau kawg, tsis tuaj yeem ua raws li lub teb chaws tus qauv los tsim lawv tus kheej cov qauv kev koom tes.ANSI cov qauv yog kev yeem.Tebchaws Asmeskas ntseeg tias cov qauv tsim nyog yuav txwv kev tsim khoom tau txais txiaj ntsig.Tab sis los ntawm txoj cai lij choj thiab tsoomfwv cov tuam tsev los tsim cov qauv, feem ntau yog ib qho yuav tsum tau ua.