JIS G3101 SS400 LSAW Pipe

 

SS400 kub dov structural longitudinal welded steel kav yog ib hom high-strength low-alloy structural steel yeeb nkab, nrog ib tug yield zog ntawm 400 MPa. Lawv nthuav tawm cov khoom siv kho tshuab thiab kev ua haujlwm zoo, siv dav hauv kev tsim kho, txuas hniav, nkoj, tsheb, thiab lwm yam.

SS400 LSAW Yeeb Nkab Specification

Khoom siv:	LSAW yeeb nkab, Longitudinally Submerged Arc Vuam Yeeb
Daim ntawv thov:	Siv rau roj / roj / dej xa mus, Engineering / Offshore tej yaam num.
Loj:	OD: 219mm -1625mm
	WT: 6.35mm-60mm
	Ntev: 2 m - 18 m

JIS G3101 SS400 LSAW yeeb nkab Chemical Composition thiab Mechanical Property

Qib	C	Mn	P	S	Si	Cr	Mo
TSI 400	-	-	Tsawg dua lossis sib npaug rau 0.050	Tsawg dua lossis sib npaug rau 0.050	-	-	-

 

Qib	Yield zog (rau cov khoom thickness hauv mm)	Tensile zog (rau cov khoom thickness hauv mm)
TSI 400	Tsawg dua los yog sib npaug li 16 16-40 40-100 Ntau dua los yog sib npaug rau 100 Ntau dua lossis sib npaug li 245 Ntau dua lossis sib npaug li 235 Ntau dua lossis sib npaug li 225 Ntau dua lossis sib npaug li 215	400-510

SS400 Welded yeeb nkab

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Qhov yuav tsum tau muaj rau qhov tshwm sim ntawm Longitudinal Weld Seam nyob rau hauv cov yeeb nkab steel

Ua ntej ua qhov kev ntsuam xyuas tsis muaj kev puas tsuaj ntawm cov kav hlau ntev ntev, kev tshuaj xyuas qhov muag ntawm qhov vuam seam yuav tsum ua raws li cov hauv qab no:

Rau welded pob qij txha siv nyob rau hauv cov yeeb nkab fittings, weld seam tsos thiab nto zoo feem ntau yuav tsum tau raws li nram no:
- Lub vuam zoo li yuav tsum zoo, nrog rau qhov dav dav ntawm 2 hli ntawm ob sab ntawm qhov zawj.
- Qhov siab ntawm fillet weld sib koom ua ke yuav tsum ua raws li cov qauv tsim, thiab cov duab yuav tsum hloov mus kom du.
- Weld seam nto:
(1) Tsis muaj kev sib tsoo, yaj, suav nrog cov slag, lossis spatter raug tso cai.
(2) Rau cov kav hlau uas muaj qhov ntsuas kub qis dua -29 degrees Celsius lossis nrog lub ntsej muag tawv, qhov vuam seam nto yuav tsum tsis txhob muaj qhov cuam tshuam. Rau lwm cov ntaub ntawv ntsig txog, qhov tob hauv qab yuav tsum siab dua 0.5mm, thiab qhov ntev ntawm qhov txuas txuas ntxiv yuav tsum tsis pub tshaj 100mm. Tag nrho ntev ntawm undercut ntawm ob sab ntawm weld seam yuav tsum tsis txhob ntau tshaj 10% ntawm tag nrho ntev ntawm weld seam.
(3) Weld seam nto yuav tsum tsis txhob qis dua cov yeeb nkab nto. Cov khoom siv vuam ntau dhau yuav tsum tsis pub tshaj 3 hli hauv qhov siab.
(4) Lub misalignment ntawm vuam sib txuas yuav tsum tsis pub tshaj 10% ntawm phab ntsa thickness thiab yuav tsum tsis txhob ntau tshaj 2 hli.

Cim npe nrov: jis g3101 ss400 lsaw yeeb nkab, Tuam Tshoj jis g3101 ss400 lsaw yeeb nkab manufacturers, lwm tus neeg