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ASTM A992, A572, A283, A913 Cov Qauv Hlau: Qhov Txawv Tseem Ceeb hauv Kev Lag Luam Hlau Thoob Ntiaj Teb

Niaj hnub nim no, kev xaiv cov hlau qib tsim nyog yog qhov tseem ceeb rau kev ua kom ruaj khov ntawm cov qauv, kev tsim khoom, thiab tag nrho cov nqi ntawm qhov project hauv kev lag luam kev tsim kho. Raws li cov qauv Asmeskas muaj plaub qib sib xws ntawmCov hlau ua vaj tse ASTM A992, A572, A283 thiab A913txhua cov hlau no muaj ntau qib kev ua tau zoo thiab cov kev xav tau ntawm qhov project.

tsev qauv hlau vaj ntxwv pawg (2)
lub tsev qauv hlau (4)

Cov Khoom Siv thiab Cov Khoom Siv Kho Tshuab Sib Txawv

ASTM A992
Qeb: Cov hlau ua los ntawm cov hlau tsis muaj zog (HSLA)
Kev ntxhov siab tsawg kawg nkaus: 345 MPa (50 ksi) lub zog tawm los
Yam ntxwv: Cov khoom sib xyaw ntawm cov khoom siv vuam "tus tsim thiab cov khoom siv vuam uas cuam tshuam nrog kev ntxhov siab" raug tswj hwm kom ntseeg tau tias muaj kev sib haum xeeb thiab kev tawv.
Daim Ntawv Tseem Ceeb: Ua tshwj xeeb rau cov flange dav dav kub (W / H beam).
A992 yog tus qauv hlau muaj zog siab hauv North America rau kev tsim kho vaj tse hlau.

ASTM A572
Qeb: Lub zog siab tsawg alloy (HSLA) cov hlau qauv
Qib: 42, 50, 55, 60, 65
Qib ntawm lub zog: Ntau dua li cov hlau carbon ib txwm muaj.
Cov Khoom Siv: Phaj, cov ces kaum, cov channel, beams thiab lwm yam
Cov qib qis dua (Qib 42,50) tuaj yeem vuam nrog cov txheej txheem vuam ib txwm muaj, Cov qib siab dua (Qib 65) xav tau cov txheej txheem vuam tshwj xeeb lossis kev kuaj xyuas ntxiv xws li PWHT thiab lwm yam.

ASTM A283
Hom: Cov hlau ua los ntawm cov pa roj carbon (cov hlau me me)
Qib: ABCD = Muaj
Lub zog: Tsis muaj zog dua li A572 thiab A992
Koj hais tau tias nws zoo li kev tsim thiab vuam ib tug menyuam ntxhw rau tus nqi ntawm ib tug ntxhw laus.
Tsuas yog lub teeb-duty lossis.General ASTM A283 yog npaj rau kev siv nrog cov qauv tsis tseem ceeb.

ASTM A913
Hom: Cov hlau tsis muaj zog uas muaj zog heev los ntawm QST (quenching thiab self-tempering) txoj kev
Qib: 50, 65, 70 = Muaj
Feature: Lub zog loj, zoo toughness thiab zoo weldability nyob rau hauv ib tug ultra-high zog hlau.
Daim Ntawv Tseem Ceeb Rau Cov Ncej Flange Dav Thiab Tuab
A913 feem ntau yog siv qhov twg muaj zog thiab cov seem leaner yog qhov tseem ceeb hauv cov qauv loj thiab siab uas txiav txim siab los ntawm hlau.

Kev Sib Txawv ntawm Daim Ntawv Thov

ASTM A992
Cov tsev lag luam thiab tsev hlau
Cov thav duab rau cov tsev siab thiab nruab nrab
Cov tsev lag luam thiab cov tsev faib khoom
Vim li cas: Nws tuaj yeem tso siab tau zoo thiab vuam tau yooj yim, siv rau ntawm lub cev ntawm lub tsheb.

ASTM A572
Cov Choj
Cov Hoobkas
Cov pej thuam thiab cov chaw tsim hluav taws xob
Cov platform hnyav
Vim li cas: Cov kws tsim qauv tuaj yeem ua kom zoo dua qhov sib npaug ntawm lub zog thiab tus nqi nrog ntau qib.

ASTM A283
Cov tsev qis qis
Cov tsev hlau me me thiab cov chaw ua haujlwm
Cov liaj teb thiab cov qauv ib ntus
Cov khoom tsis tseem ceeb
Vim li cas: Nws pheej yig thiab yooj yim tuav cov khoom, tab sis muaj peev xwm nqa tau me ntsis.

ASTM A913
Cov Tsev Siab
Cov choj ntev
Chaw ua si thiab chaw ua lag luam
Cov haujlwm lag luam hnyav
Vim li cas: Cov tswv cuab nyias dua thiab ntev dua tuaj yeem ua tiav nrog lub zog siab heev.

Kev Nyiam Ua Lag Luam thiab Cheeb Tsam

ASTM A992 Cov Qauv Hlau: Muaj nyob rau hauv Tebchaws Meskas thiab Canada, Middle East, Southeast Asia rau Building Frame.

ASTM A572 Cov Qauv HlauNyiam nyob rau hauv Sphere of Americas thiab Infrastructure Oriented Regions xws li Choj thiab Cov Qauv Hnyav.

ASTM A283 Cov Qauv HlauSiv dav hauv lub ntiaj teb thib peb rau kev tsim kho pheej yig thiab sib dua.

ASTM A913 Cov Qauv HlauFeem ntau siv rau hauv cov teb chaws tsim kho thiab cov phiaj xwm loj xws li Tebchaws Meskas, Tebchaws Europe, Middle East, East Asia.

Cov Nqi thiab Kev Xav Txog Kev Lag Luam

A283Tus nqi qis thiab qhov zoo tsis zoo

A992: Tus nqi nruab nrab, qhov sib npaug zoo ntawm lub zog thiab yooj yim ntawm kev tsim khoom

A572Tus nqi nyob ntawm qib

A913Tus nqi siab tshaj plaws rau ib chav, tab sis lub zog siab txo cov hlau tag nrho

Cov hlau muaj zog heev tuaj yeem txo cov nqi tag nrho los ntawm kev txo cov khoom siv, kev thauj mus los thiab kev teeb tsa.

Kev Tsim Khoom thiab Kev Vuam

A283: Yooj yim rau txiav thiab vuam

A992: Tsim los kom vuam rau cov qauv

A572: Weldable, tab sis yuav tsum muaj kev tswj hwm nruj dua rau cov qib siab dua

A913Ib txoj kev tsim kho tshiab uas tso cai rau kev vuam zoo ntawm cov qib siab heev.

Kev Txheeb Xyuas thiab Kev Sib Piv

Tus Qauv Qib Zog Kev Siv Ib Txwm Muaj Qib Nqi Cov Lag Luam Kub
ASTM A992 Siab Cov tsev, cov thav duab Nruab Nrab Tebchaws Meskas, Middle East, SE Asia
ASTM A572 Nruab Nrab–Siab Cov choj, cov nroj tsuag Nruab Nrab–Siab Tebchaws Asmeskas, Cov cheeb tsam tsim kho vaj tse
ASTM A283 Qis Cov qauv teeb Qis Teb chaws Africa, Sab Qab Teb Asia, Nruab Nrab Amelikas
ASTM A913 Siab heev Cov tsev siab heev, cov phiaj xwm loj Siab Tebchaws USA, Tebchaws Europe, Middle East, East Asia

ASTM A283, A992, A572 thiab A913 yog plaub qib kev ua tau zoo rau cov hlau ua vaj tse. A283 yog rau kev txuag nyiaj, A992 yog lub thav tsev ua ntej, A572 muaj ntau yam kev xaiv lub zog rau kev tsim kho vaj tse thiab A913 yog qhov zoo tshaj plaws rau cov ntawv thov hnyav thiab siab. Cov haujlwm tsim kho uas muaj zog zuj zus ua rau muaj kev hloov pauv mus rau cov hlau ua vaj tse muaj zog dua hauv kev lag luam thoob ntiaj teb.

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