ASTM A53 Gr.B hais txog tus qauv tshwj xeeb rau kev sib khi thiab welded dub thiab kub-dipped galvanized steel yeeb nkab. Cov kav dej no tau siv ntau cov ntawv thov, suav nrog kev tsim kho, roj thiab roj, dej, thiab lwm yam.

Tshuaj Yuav Tsum Tau

Tshuaj Yuav Tsum Tau


Muaj pes tsawg leeg, max,%
	Pa roj carbon	Tus kws dai txiv manganese	Phosphorus sulfur	Leej mos	Tooj liab^A	Tus menyuam yaus^A	Yeebsab^A	Molybdenum^A	Thee lub hau^A
Hom S (Seamless Yeeb Nkab)
Qib B	0.3^B	1.2	0.05	0.045	0.4	0.4	0.4	0.15	0.08
Hom E (hluav taws xob-resistance-welded)
Qib B	0.3^B	1.2	0.05	0.045	0.4	0.4	0.4	0.15	0.08
Ib qho tag nrho cov khoom siv rau tsib lub ntsiab no yuav tsis pub tshaj 1. 00%.
B rau txhua qhov txo ntawm {{{{{0}}}}. 01%

Qhov sib txawv ntawm ASTM A53 GR.B thiab GR.A

Pa roj carbon: Gr.B muaj qhov kev txwv siab dua ({0}}}. 30%) piv rau Gr.A (0.25%).

Tus kws dai txiv manganese: Gr.B tseem muaj qhov txwv siab (1.2 {2}}%) tshaj gr.a (0.95%).

Cov kev sib txawv no hauv cov tshuaj sib txawv raws li cov khoom siv me me ntawm cov kav hlau, tshwj xeeb yog lawv lub zog thiab tawv. ASTM A53 GR.B, nrog nws cov roj carbon thiab manganese cov ntsiab lus, feem ntau muaj zog dua thiab ua kom haum rau cov ntawv thov uas yuav tsum tau muaj siab dua.

Lub kaum tensile yuav tsum tau

Lub kaum tensile yuav tsum tau
	Qib B
Lub zog tensile muaj zog, min, PSI [MPA]	60000 [415]
Pepred lub zog, min, PSI [MPA]	35000 [240]
Elongation nyob rau hauv 2 in.or 50 hli	^A,B
^AQhov tsawg kawg nkaus elongation nyob rau hauv 2 hauv. [50 hli] yuav yog qhov uas txiav txim siab los ntawm kab sib luag hauv qab no:
e=625000[1940]A0.2/U0.9
Qhov twg:
e {= Yam tsawg kawg nkaus elongation hauv 2 in.or 50 hli hauv feem pua, sib npaug rau qhov ze tshaj plaws,
{{{{{{0} tus neeg hla ntawm kev ntsuas ntsuas ntawm cov yeeb nkab ntawm cov yeeb nkab ntawm cov yeeb nkab ntawm cov yeeb nkab ntawm cov yeeb nkab Kuaj cov ntawv sau thiab cov phab ntsa tuab ntawm cov yeeb nkab, nrog cov nqi xam sib npaug mus rau qhov ze tshaj plaws 0. 01 in.² [1 mm²], thiab
U {= sau tseg qhov tsawg kawg tensile lub zog, psi [MPA].
^BSaib cov lus x4.1 lossis cov lus X4.2 (ASTM {4 4}}}}}

Qhov sib txawv ntawm ASTM A53 GR.B thiab GR.A

Lub zog tensile:

Gr.A: 48, 000} psi yam tsawg kawg nkaus.

Gr.b: 60, 000 psi yam tsawg kawg nkaus.

Paib lub zog:

Gr.A: 30, 000} psi yam tsawg kawg nkaus.

Gr.b: 35, 000 psi yam tsawg kawg nkaus.

Cov kev sib txawv no hauv cov khoom siv neeg ua haujlwm txhais tau tias Astm A53 Gr.B feem ntau muaj zog dua thiab tsim nyog muab piv rau Gr.A.

Nyem qhov no yog ASTM A53 tus qauv,(Nyem qhov txuas no los saib ntau qhov sib txawv ntawm Astm A53 Gr.A thiab Gr.B.)

Cov txheej txheem tsim khoom

Kev tsim khoom ntawm cov kav dej uas tsis muaj cai Cov kav dej yauv ua cov txheej txheem cua sov xws li annealing, noraling, lossis quenching thiab tempering kom txhim kho lawv cov khoom siv.

Cov Ntawv Thov

ASTM A53 Gr.B Cov ntu tawm tau siv nyob rau hauv ntau cov ntawv thov vim lawv cov khoom siv tshuaj zoo thiab tshuaj lom neeg. Lawv yog qhov zoo tshaj rauDej thiab Roj Kab, Cov ntawv thov txheej txheemxws li cov kab thiab kev zawm hniav, thiabChav thiab Siab ConveyeanceCov. Lawv kuj tau siv nyob rau hauvKev Tsim Kho Kev Tsim Khorau kev ua haujlwm lub tsev thiab kab ntawv, hauvDej Faib Tshuab, thiab nyob rau hauvTshuaj lom neeg thiab cov nroj tsuag petrochemicalRau cov txheej txheem piping thiab siab cov hlab ntsha.

Qhov Zoo

ASTM A53 Gr.B kav pub ib qho kev sib npaug ntawm lub zog, hloov tau yooj yim, thiab tus nqi-ua hauj lwm zoo. Lawv muaj cov neeg ruaj khov thiab ntseeg tau, muaj peev xwm nrog kev ntsuas sab hauv thiab sab nraud, ua rau lawv cov khoom nyiam hauv ob qho kev lag luam thiab cov txheej txheem.

Hauv cov ntsiab lus, Astm A53 Gr.B cov ntu yog qhov kev xaiv ntau yam thiab txhim khu kev qha rau ntau yam khoom siv nruj thiab ua raws li cov qauv kev lag luam nruj.

WELDED STEEL PIPE