Tshuaj lom neeg cov khoom siv thiab cov khoom siv neeg kho mob ntawm 25mNG
Tshuaj lom neeg cov tshuaj lom neeg yuav tsum tau ua,%
C: 0.22-0.27
Si: {{0. {17-0. 37
MN: {{0. {{70-1. 00
P: Tsawg dua lossis sib npaug rau 0. 025
S: Tsawg dua lossis sib npaug rau 0. 015
Residual ntsiab
Cu: tsawg dua lossis sib npaug rau 0. 20
CR: Tsawg dua lossis sib npaug rau 0. 25
Ni: tsawg dua los yog sib npaug rau 0. 25
Mo: tsawg dua lossis sib npaug rau 0. 15
V: Tsawg dua lossis sib npaug rau 0. 08
Kev Kho Cua Sov Noovalized: 880 Degree -940 degree chav tsev kub
Cov Khoom Siv Cov Khoom Siv Yuav Tsum
Tensile lub zog RM: 485-640 mpa mpa
Tshaj tawm lub zog rel: loj dua los yog sib npaug rau 275mpa
Elongation ntawm tawg ib: Ntev ntau dua lossis sib npaug rau 20, hloov pauv ntau dua lossis sib npaug rau 18
Cuam tshuam kev cuam tshuam lub zog, (KV2 / J): Ntev ntau dua lossis muaj ntau dua los yog sib npaug lossis sib npaug rau 14 leeg yuav tsum tau ntsuas)
Hardness: HBW: {{{130-180, hv: 130-180
Kev thev xim rau nominal sab nraud ntawm lub taub thiab nominal ntsa tuab ntawm cov hlau sib txuas thiab kav dej
| Txoj kev raug |
STEEL YEEB NKAB HLUAV |
Kev nyiaj tau | |||
| kawm ib txwm muaj | theem siab | ||||
| Kub Rolled (Extruded) Steel Yeeb Nkab |
Nominal sab nraud ntawm lub taub d |
<57 |
±0.40 |
±0.30 |
|
|
57-325 |
S tsawg dua los yog sib npaug rau 35 |
±0.75%D |
±0.50%D |
||
|
S>35 |
±1%D |
±0.75%D |
|||
|
>325-600 |
{{0 {0}}% d lossis +5}, min -2 |
- |
|||
|
>600 |
{{0 {0}}% d lossis +7}, min -2 |
- |
|||
|
Nominal phab ntsa thickness s |
Tsawg dua los yog sib luag rau 4. 0 |
±0.45 |
±0.35 |
||
|
>4.0-20 |
+12.5%S -10%S |
±10%S |
|||
|
>20 |
D<219 |
±10%S |
±7.5%S |
||
|
D ntau dua los yog sib npaug rau 219 |
+12.5%S -10%S |
±10%S |
|||
| Kub nthuav tawm cov yeeb nkab steel |
Nominal sab nraud ntawm lub taub d |
tag nrho |
±1%D |
±0.75%D |
|
|
Nominal phab ntsa thickness s |
tag nrho |
+20%S -10%S |
+15%S -10%S |
||
| Khaub thuas-kos (dov) hlau leeg |
Nominal sab nraud ntawm lub taub d |
Tsawg dua los yog sib npaug rau 25.4 |
±0.15 |
- |
|
|
>25.4-40 |
±0.20 |
- |
|||
|
>40-50 |
±0.25 |
- |
|||
|
>50-60 |
±0.30 |
- |
|||
|
>60 |
±0.5%D |
- |
|||
|
Nominal phab ntsa thickness s |
Tsawg dua los yog sib npaug rau 3. 0 |
±0.3 |
±0.2 |
||
|
>3.0 |
±10%S |
±7.5%S |
|||
