Dab tsi yog cov yam ntxwv ntawm S355JR steel?
S355 JRyog ib lub siab -lub zog steel nrog qhov tsawg kawg nkaus lub zog ntawm 355 MPa, tensile lub zog ntawm 470-630 MPa (nyob ntawm seb thickness), thiab elongation tseem ceeb (nyob ib ncig ntawm 20-22%), paub txog nws zoo weldability thiab teev tej yam toughness (27 Joules ntawm ntau yam kub thiab txias.
Qhov Kev Xaiv "S355JR" Qhia Peb:
S:Cov qauv hlau.
355:Yam tsawg kawg nkaus yield zog hauv MPa rau thicknesses tsawg dua los yog sib npaug rau 16 hli.
J:Qhia meej txog qhov kev ntsuam xyuas qhov hnyav yog ua ntawm +20℃.
R:Qhia txog qhov tsawg kawg nkaus Charpy V-qhov cuam tshuam rau lub zog xav tau (27 J).
Rau kev sib piv, lwm cov qhab nias hauv tib tsev neeg yog:
S355J0:Kuaj ntawm 0℃(rau qhov chaw txias dua).
S355J2:Kuaj ntawm -20℃(rau qhov chaw txias).
S355K2:Kuaj ntawm-20℃nrog ntau dua lav qhov cuam tshuam lub zog (40 J avg).
Mechanical zog ntawm steel 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 |
Tag nrho cov specification thiab cov ntsiab lus muaj nyob rau ntawm kev thov. Cov ntaub ntawv saum toj no yog muab rau kev taw qhia nkaus xwb. Rau cov qauv tsim tshwj xeeb thov hu rau peb cov neeg ua haujlwm muag khoom.
