S355JR Tsawg Alloy High Strength Steel Phaj

S355JR steel yog European tus qauv qis alloy siab zog steel phaj, siv nyob rau hauv vaj tse, choj thiab lwm yam. Hauv Tebchaws Meskas, Tuam Tshoj, Nyiv thiab lwm lub tebchaws kuj tseem muaj cov qib steel zoo ib yam, xws li: Tuam Tshoj Q345B, Tebchaws Meskas A572GR50, Japanese tus qauv SM490B thiab lwm yam.

 

Tsawg alloy siab zog steel phaj raws li cov qauv sib txawv

 

cov khoom
Qauv nab npawb	Q345B	A572 gr 50	S355 JR	SWB 490B
C (t Tsawg dua lossis sib npaug li 16 hli)	0.20	0.23	0.27	0.20
Si	0.5	0.40	0.60	0.55
Mn	1.7	1.35	1.7	1.6
P	0.035	0.04	0.045	0.035
S	0.035	0.05	0.045	0.035
Yield zog ReH/(N/mm2) (t Tsawg dua los yog sib npaug rau 16mm) min	345	345	355	395
Tensile zog Rm / (N / mm2) (3mm Tsawg dua lossis sib npaug t Tsawg dua lossis sib npaug li 16mm)	470-630	450	470-630	490-610
Elongation A /% (3mm Tsawg dua lossis sib npaug t Tsawg dua lossis sib npaug li 40mm) min	20	18	22	18

* Cov ntaub ntawv saum toj no yog los ntawm kev ntsuas sab hauv thiab tsis sawv cev cov ntaub ntawv raug.

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