ASTM A709 Gr.50W weathering steel phaj

ASTM A709 Qib 50Wyog lub siab -lub zog qis- alloy (HSLA) huab cua hlau feem ntau siv hauv kev tsim kho choj thiab kev siv cov txheej txheem uas yuav tsum tau ua kom muaj kev tiv thaiv huab cua zoo dua.

Nws yog cov huab cua version ntawm A709 Qib 50 thiab tshwj xeeb tshaj yog haum rau sab nraum zoov, tsis pleev xim.

Sib npaug International Qib

A709 Gr.50W sib haum rau ntau lub ntiaj teb huab cua huab cua cov qauv, suav nrog:

EN 10155: S355K2G1W

NFA 35-502: E36 WB 4

Cov qib no qhia zoo sib xws corrosion-cov khoom tiv taus thiab kev ua haujlwm zoo.

A709 Gr.50W steel daim hlau tuaj yeem muab nkag rau hauv ntau yam kev xa khoom thiab cua sov-kev kho mob, suav nrog:

Kub Rolled / Cold Rolled

Normalized (N)

Tempered

Quenched

Normalized + Tempered

Quenched + Tempered

TMCP (Thermo-Cov txheej txheem tswj kev siv tshuab)

Electroslag Remelting (ESR)

UT Kev Xeem

PWHT

Kev sim cuam tshuam

HIC Testing (Hydrogen{0}}Induced Cracking)

Qhov kev hloov pauv no tso cai rau cov hlau kom ua tau raws li qhov sib txawv engineering thiab kev ua haujlwm.

A709 Gr.50W yog dav siv nyob rau hauv cov qauv raug rau atmospheric tej yam kev mob vim nws corrosion-cov khoom tiv taus. Cov ntawv thov uas muaj xws li:

Kev loj & railway choj

Welded, bolted & riveted steel qauv

Steel ncej tsev

Tank thiab ntim khoom

Industrial tso pa system

Cov tsheb hnyav thiab cov khoom siv

Qib no feem ntau raug txiav txim nrog Charpy V-cov kev xav tau cuam tshuam raws li thaj chaw huab cua uas tus qauv yuav raug teeb tsa.

Nco tseg:Huab cua hlau cov ntsiab lus xws li Cu, Ni, Cr, thiab P yog suav nrog raws li ASTM A709 50W tus qauv yuav tsum, tab sis qhov tseem ceeb sib txawv los ntawm thickness thiab yaj tsom xam. Tag nrho cov lus sib xyaw tuaj yeem ntxiv yog tias koj xav tau.

Cov khoom ntxiv (piv txwv li, cuam tshuam lub zog thiab hardness) tuaj yeem muab tau raws li qhov yuav tsum tau ua.

Gnee Industrial muab cov kev pabcuam ua tiav thiab tshuaj xyuas rau A709 Gr.50W, suav nrog:

Steel Pretreatment: Derusting, painting, lacquering, xuab zeb blasting

Kev kho cua sov: Normalizing, quenching, tempering, PWHT

Kev Xeem: UT, Impact Test, HIC Test, Z15 / Z25 / Z35 xeem

Fabrication: txiav, vuam, dabtsi yog khoov

Kev kho deg: Galvanization muaj raws li qhov kev thov

Thib peb-Kev Tshawb Fawb: SGS, BV, TUV, thiab lwm yam.

Hu rau tam sim no

A709 qib 50W steel yog dab tsi?

ASTM A709-50W yogtus qauv specification rau cov qauv steel feem ntau nyob rau hauv fabrication ntawm steel choj. ASTM A709-50W npog lub zog siab, tsis tshua muaj cia steel qauv duab, daim hlau thiab tuav.

ASTM A709 steel qib yog dab tsi?

ASTM A709 yog tus qauv Specification rau Cov Hlau Hlau rau Cov Txuas Txuas thiab suav nrog cov pa roj carbon, siab - lub zog qis- alloy, thiab quenched thiab tempered alloy steels siv los ua cov phiaj xwm hauv kev tsim cov choj. SSAB muaj tsib qib nram qab no ntawm A709;36, 50, 50W, HPS 50W thiab HPS 70W.

Dab tsi yog qhov txawv ntawm ASTM A572 Qib 50 thiab ASTM A709 Qib 50?

A572 Qib 50: Siv dav hauv kev siv cov qauv, nrog rau cov tsev, cov tsev sib kis, cov khoom siv, thiab kev tsim kho dav dav. Nws tsis yog tshwj xeeb optimized rau choj. A709 Qib 50: Feem ntau siv rau kev tsim kho choj thiab lwm cov qauv uas txhim kho toughness thiab weldability yog qhov tseem ceeb.

Lub zog ntawm ASTM A709 qib 50 yog dab tsi?

Qib 50 steel ntawm qhov kev qhia tshwj xeeb no yuav tsum muaj lub zog tsawg kawg nkaus ntawm 50 ksi. Siv los ua cov tswv cuab hauv kev tsim choj los yog rau cov qauv zoo sib xws.

Dab tsi yog qhov txawv ntawm ASTM A36 thiab A709?

ASTM A709 qib 36 yog cov khoom siv txuas hniav uas muaj cov pa roj carbon ntxiv rau lub zog thiab hardenability ntawm cov hlau.A36 muaj tsawg dua 0. 30% carbon thiab yog li, tsis muaj siab hardenability. ASTM A709 qib 36 steel phaj tau txhim kho corrosion kuj thiab tuaj yeem siv rau sab nraum zoov.

ASTM A572 qib 50 sib npaug li cas?

ASTM A572 Qib 50 yog sib npaug rau ntau qib steel, nrog rau qhov sib npaug thoob ntiaj teb feem ntau yog S355JR (European standard) thiab Q345B (Suav tus qauv). Qhov sib npaug zoo tshaj yog nyob ntawm qhov kev xav tau tshwj xeeb, yog li nws yog qhov zoo tshaj plaws los tham txog cov khoom tshwj xeeb thiab tus kws tshaj lij kom paub meej tias kev sib haum xeeb.

Dab tsi yog qhov txawv ntawm ASTM A36 thiab ASTM A572 GR 50?

Raws li tau hais ua ntej,A36 yog hlau uas muaj qhov tsawg kawg nkaus tawm los ntawm 36,000 PSI. Qib no muab nws lub zog los ntawm kev sib xyaw ntawm carbon thiab manganese. Ntawm qhov tod tes, A572-50, piv txwv li, yog ib hom hlau uas muaj qhov tsawg kawg nkaus yield zog ntawm 50,000 PSI.

Qhov txawv ntawm A572 thiab s355 yog dab tsi?

Hauv kev xaus, ob qho tib si ASTM A572 Qib 50 thiab S355JR yog cov kev xaiv zoo tshaj plaws rau kev siv steel hlau, nrog rauASTM A572 Qib 50 muab kev muaj peev xwm ntau dua thiab S355JR muab ntau yam thiab siv dav hauv European kev tsim kho.

Puas yog A572 steel corrosion resistant?

A572 steel feem ntau yog siv rau hauv cov qauv siv vim nws lub zog siab, ductility, weldability thiabcorrosion kuj. Cov ntawv thov no suav nrog cov qauv tsim, cov khoom siv ntxiv, txuas hniav, skyscrapers thiab tsev.