Qhov sib txawv ntawm S235JR thiab S355JR steel phaj

Dec 17, 2025 Tso lus

Qhov sib txawv tseem ceeb ntawm S235JR thiab S355JR steel daim hlau yog lub zog: S355JR muaj qhov muaj zog ntau dua (355 MPa yam tsawg kawg nkaus) thiab lub zog tensile tshaj S235JR (235 MPa yam tsawg kawg nkaus), ua rau nws haum rau hnyav-lub luag haujlwm, siab-load daim ntaub ntawv xws li cov txuas hniav loj thiab 5JR, ntau dua S23. kev tsim kho, txawm hais tias ob qho tib si muaj qhov zoo weldability, nrog S235 yooj yim rau txias - daim ntawv.

Tshuaj muaj pes tsawg leeg ntawm S235JR

C max	Mn max	P max	S max	N max	Cu max	CEV max
0.2	1.4	0.04	0.04	0.012	0.55	0.38

Tshuaj muaj pes tsawg leeg ntawm S355JR

С	Si	Mn	P	S	N	Cu
Tsawg dua lossis sib npaug li 0,24	Tsawg dua los yog sib npaug li 0.55	Tsawg dua lossis sib npaug li 1.60	Tsawg dua lossis sib npaug li 0.035	Tsawg dua lossis sib npaug li 0.035	Tsawg dua lossis sib npaug li 0.012	Tsawg dua los yog sib npaug li 0.55

Mechanical Properties ntawm S235JR

Nominal thickness (hli):	rau 3	3 – 100	100 – 150	150 – 250
Rm - Tensile zog (MPa) Pav ca thiab ntev khoom	360-510	360-510	350-500	340-490

Nominal thickness (hli):	rau 16	16–40	40–63	63–80	80–100	100–150	150–200	200–250
ReH - Yam tsawg kawg nkaus yield zog (MPa) Flat thiab ntev khoom	235	225	215	215	215	195	185	175

KV - Impact zog (J) longitud.,	-20 degree	0 degree	+20 degree
KV - Impact zog (J) longitud.,	27	27	27

Nominal thickness (hli):	rau 1		1.5 – 2	2 – 2.5	2.5 – 3
Ib - Min. elongation Lo=80 hli (%) parallel,	17	18	19	20	21

Nominal thickness (hli):	Peb - 40	40 – 63	63 – 100	100 – 150	150 – 250
Ib - Min. elongation Lo=5,65 √ Yog li (%) parallel,	26	25	24	22	21

Mechanical Properties ntawm S355JR

Nominal thickness, hli	Tsawg tshaj tawm lub zog, MPa	Lub zog txwv, MPa
<3	355	510-680
Ntau dua lossis sib npaug li 3 Tsawg dua lossis sib npaug rau 16	355	470-630
>16 Tsawg dua lossis sib npaug li 40	345	470-630
>40 Tsawg dua lossis sib npaug li 63	335	470-630
>63 Tsawg dua lossis sib npaug li 80	325	470-630
>80 Tsawg dua los yog sib npaug rau 100	315	470-630
>100 Tsawg dua los yog sib npaug rau 150	295	450-600
>150 Tsawg dua los yog sib npaug li 200	285	450-600
>200 Tsawg dua los yog sib npaug rau 250	275	450-600
>250 Tsawg dua los yog sib npaug rau 400	265	450-600

Xaiv S235JR rau qhov dav dav, pob nyiaj siv -cov haujlwm ua haujlwm zoo thiab S355JR rau kev thov, siab- cov haujlwm muaj zog uas qhov kev ua tau zoo ua pov thawj rau tus nqi siab dua thiab kev tsim ntau dua.