Q500D steel phaj belongs rau qis alloy siab zog steel phaj. "Q": qhia txog cov qauv hlau; "500": qhia tias lub thickness Tsawg dua los yog sib npaug rau 50mm yam tsawg kawg nkaus yield zog ntawm 500MPa; "D": qhia qhov zoo ntawm qib steel phaj, ua -20 degree cuam tshuam kev xeem.
Q500D steel phaj siv cov qauv: kev siv ntawm GB / T3247 tus qauv.
Q500D steel phaj tus me nyuam lub xeev: tempered (quenched + tempered), kuj yuav raug teev raws li cov kev cai ntawm lub xeev tus me nyuam.
Q500D Low-alloy High-strength Steel Phaj Chemical Composition thiab Mechanical Property:
| STEEL Qib | C% max | Si% max | Mn% max | P% max | S% max | Cu% max | Cr% max | Nia% max | Mo% max | B% max | V% max | Nb% max | % max |
| Q500D | 0.2 | 0.80 | 1.7 | 0.02 | 0.010 | 0.5 | 1.5 | 2 | 0.70 | 0.005 | 0.12 | 0.06 | 0.05 |
| STEEL Qib | Re yield zog Mpa min | Re yield zog Mpa min | elongation% | Zog thiab kub | |||||||
| Min | 0 | -20 | -40 | -60 | |||||||
| t Tsawg dua lossis sib npaug li 50 | 50-100 | 100-150 | t Tsawg dua lossis sib npaug li 50 | 50-100 | 100-150 | J | J | J | J | ||
| Q500D | 500 | 480 | 440 | 590-770 | 590-770 | 540-720 | 17 | 47 | 47 | 34 | 34 |
