Dab tsi yog cov khoom ntawm Q345B Welded Yeeb

Dab tsi yog cov khoom ntawm Q345B welded yeeb nkab

Q345B welded yeeb nkab yog ib yam uas tsis tshua muaj alloy high-strength steel yeeb nkab, uas yog dav siv nyob rau hauv kev tsim kho tej yaam num, txuas hniav, tsheb, nkoj, siab hlab ntsha thiab lwm yam teb rau kev ua ntau yam kev nyuaj siab Cheebtsam thiab cov yam ntxwv qhov chaw.

Q345B High Pressure Boiler Tubes Tshuaj muaj pes tsawg leeg (%)

Muaj pes tsawg	C	Si	Mn	P	S	Cr	Ni	CU	Mo	N	Ti	V	Nb
Min	-	-	-	-	-	-	-	-	-	-	-	-	-
Tus zuag	0.2	0.5	1.7	0.035	0.035	0.3	0.5	0.3	0.1	0.012	0.2	0.15	0.07

Q345B Low-Carbon Alloy Steel Yeeb Nkab Cov Khoom Siv

Thickness (caliber, ntev) t lub hli	tensile zog σ_b MPa	yield point σ_s MPa	Elongation thaum tawg lossis elongation δ %
t Tsawg dua los yog sib npaug rau 16	470~630	Ntau dua los yog sib npaug rau 345	Ntau tshaj los yog sib npaug rau 20
16< t≤ 40	470~630	Ntau dua los yog sib npaug rau 335	Ntau tshaj los yog sib npaug rau 20
40＜t Tsawg dua lossis sib npaug rau 63	470~630	Ntau dua los yog sib npaug rau 325	Ntau dua lossis sib npaug li 19
63	470~630	Ntau dua lossis sib npaug rau 315	Ntau dua lossis sib npaug li 19
80＜t Tsawg dua lossis sib npaug rau 100	470~630	Ntau dua los yog sib npaug rau 305	Ntau dua lossis sib npaug li 19
100	450~600	Ntau dua los yog sib npaug rau 285	Ntau dua lossis sib npaug li 18
150＜t Tsawg dua lossis sib npaug rau 200	450~600	Ntau dua lossis sib npaug li 275	Ntau dua los yog sib luag rau 17
200＜t Tsawg dua lossis sib npaug rau 250	450~600	Ntau dua los yog sib npaug rau 265	Ntau dua lossis sib npaug li 17

Q345B welded steel yeeb nkab loj txoj kab uas hla kauv yeeb nkabtus qauv sib npaug

GB	JIS	ASTM	ISO	DIN EN/DIN	NF EN/NF	En	Hlau tooj	SS	IB EN/BS
Q345B Q345C	SWB 490A SIB 490	A572 A678Gr.a SSG 50	E355C FE510B	St 52-3	E36-2	S355 JR Fe510 ib	1.0045	2132-01	50B

Q345B WELDED YEEB NKAB RAU MUAG

Q345B ssaw pipe

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