ASTM A618 / A618M steel HOLLOW ntu

ASTM A618/A618M-04(2015) Specification rau Kub-Formed Welded thiab Seamless High-Strength Low-Alloy Structural Tubing

Qhov Loj: 20MM X 20MM -- 800MM X 800MM WT: 2.0--50MM

Lub sij hawm tsim khoom: 15-45 hnub

Shipping: thawv los yog bulk shipping shipping

Specification: Kub-Formed Welded thiab Seamless Carbon Steel Structural Tubing
Daim Ntawv Thov: Rau kev tsim cov choj thiab cov vaj tse thiab cov hom phiaj dav dav
Grade: Ia Ib II III
Chaw tsim khoom: Kub-Formed Welded thiab Seamless
Tshooj ntawm Cov Duab: Round lossis Square lossis Rectangular lossis Tshwj Xeeb Zoo
Sab nraud txoj kab uas hla: DN15-DN350 raws li ASTM A618
Phab ntsa Thickness: Raws li ASTM A618 lossis Specified
Ntev ntawm Cov Yeeb Nkab: Tsau 5.8 / 6 Meters lossis SRL / DRL lossis Specified
Tso cai Variations: Raws li ASTM A618 Standard
Xaus Xaus: Plain End
Thaum tshav kub kub kho: Thaum tshav kub kub kho
Nto: liab qab los yog coated tiv thaiv xim los yog Anticorrosive txheej
MTC: Mill Test Certificate raws li ASTM A618/EN10204 3.1B
Marking & Packing: Raws li ASTM A618 lossis Specified

Abstract

Qhov kev qhia tshwj xeeb no suav nrog cov qib kub- ua welded thiab seamless siab -lub zog qis- alloy square, rectangular, round, los yog tshwj xeeb cov qauv tubing rau welded, riveted, los yog bolted kev tsim kho ntawm cov choj thiab cov vaj tse thiab rau lub hom phiaj dav dav.

Cov qib no yog: Qib Ia thiab Ib; Qib II; thiab Qib III.

Thaum cov hlau siv rau hauv kev tsim kho welded, cov txheej txheem vuam yuav tsum haum rau cov hlau thiab cov kev pab cuam. Cov tubing yuav tsum tau ua los ntawm seamless, rauv-buttwelded (nruam-welded), los yog kub-stretch-txo hluav taws xob-kuj-welded txheej txheem. Kev ntsuas tensile thiab khoov yuav tsum tau ua rau cov khoom ua raws li qhov yuav tsum tau teev tseg. Yog tias cov txiaj ntsig ntawm kev ntsuas tshuab uas sawv cev rau cov cua sov tsis ua raws li qhov yuav tsum tau ua, yuav tsum tau ua dua tshiab.

Scope

1.1 Qhov kev qhia tshwj xeeb no suav nrog cov qib kub- ua welded thiab seamless siab -lub zog qis- alloy square, rectangular, round, lossis tshwj xeeb cov qauv tubing rau welded, riveted, los yog bolted kev tsim kho ntawm cov choj thiab cov vaj tse thiab rau lub hom phiaj dav dav. Thaum cov hlau siv rau hauv kev tsim kho welded, cov txheej txheem vuam yuav tsum haum rau cov hlau thiab cov kev pab cuam.

1.2 Qib II muaj atmospheric corrosion kuj zoo ib yam li carbon steel nrog tooj liab (0.20 yam tsawg kawg Cu) Qib Ia thiab Ib muaj atmospheric corrosion kuj zoo dua li qib II (Note 1). Thaum raug huab cua zoo, Qib Ia thiab Ib tuaj yeem siv liab qab (tsis pleev xim) rau ntau daim ntawv thov. Thaum xav tau kev txhim kho corrosion kuj, Qib III, tooj liab txwv yuav raug teev tseg.

Lus Cim 1: Rau cov txheej txheem ntawm kev kwv yees atmospheric corrosion kuj ntawm cov hlau tsis tshua muaj hlau saib Guide G101 los yog cov ntaub ntawv tseeb.

1.3 Cov txiaj ntsig tau teev tseg hauv SI units lossis nti -pound units yuav tsum raug suav tias yog tus qauv. Nyob rau hauv cov ntawv nyeem, SI units tau qhia nyob rau hauv brackets. Cov txiaj ntsig tau teev tseg hauv txhua qhov system yuav tsis muaj qhov sib npaug; Yog li ntawd, txhua qhov system yuav tsum tau siv nws tus kheej ntawm lwm tus. Kev sib xyaw cov txiaj ntsig los ntawm ob lub tshuab yuav ua rau tsis yog -ua raws li tus qauv.