Qauv Seamless steel yeeb nkab rau exporting
cov khoom piav qhia
Txheem:GB/T8162-2008
Qib:20, 45, 20Mn, Q345B, Q345C, Q345D, 45Mn2, 27SiMn
Delivery Code:Kub dov
Qhov Loj Loj:OD 73MM-630MM, Thickness 4MM-35MM
Kev kam rau siab:Raws li GB / T8162-2008
Ntev:Raws li kev thov
MTC:GB/T19001-2008
khoom parameter
Chemical Compostion:
| Qib | C | Si | Mn | P | S | Nb | V | Ti | Cr | Ni | Cu |
| 20 | 0.17-0.23 dr hab | 0.17-0.37 Nws | 0.35-0.65 Nws | ≤ 0.035 | ≤ 0.030 | / | / | / | ≤ 0.25 | ≤ 0.30 | ≤ 0.25 |
| 45 | 0.42-0.50 Nws | 0.17-0.37 Nws | 0.50-0.80 Nws | ≤ 0.035 | ≤ 0.030 | / | / | / | ≤ 0.25 | ≤ 0.30 | ≤ 0.25 |
| 20 Mn | 0.17-0.23 dr hab | 0.07-0.37 Nws | 0.70-1.00 Nws | ≤ 0.035 | ≤ 0.030 | / | / | / | ≤ 0.25 | ≤ 0.30 | ≤ 0.25 |
| q345 ib | ≤ 0.20 | ≤0.50 | ≤ 1.70 | ≤ 0.035 | ≤ 0.035 | ≤ 0.07 | ≤ 0.15 | ≤ 0.20 | ≤ 0.30 | ≤0.50 | ≤ 0.30 |
| qw 345c | ≤ 0.20 | ≤0.50 | ≤ 1.70 | ≤ 0.035 | ≤ 0.030 | ≤ 0.07 | ≤ 0.15 | ≤ 0.20 | ≤ 0.30 | ≤0.50 | ≤ 0.30 |
| qw 345d | ≤ 0.18 | ≤0.50 | ≤ 1.70 | ≤ 0.035 | ≤ 0.025 | ≤ 0.025 | ≤ 0.15 | ≤ 0.20 | ≤ 0.30 | ≤0.50 | ≤ 0.30 |
| 45mn 2 | 0.42-0.49 Nws | 0.17-0.37 Nws | 1.40-1.80 Nws | ≤ 0.035 | ≤ 0.035 | / | / | / | ≤ 0.25 | / | ≤ 0.25 |
| 27 Sib | 0.24-0.32 Nws | 1.10-1.40 Nws | 1.10-1.40 Nws | ≤ 0.035 | ≤ 0.035 | / | / | / | ≤ 0.30 | / | ≤ 0.20 |
Mechanical Properties:
| Qib | Tshuaj muaj pes tsawg leeg | Yeild zogkuv Mpa | Tensile zog | Elongation | Impact Test | ||||||
| T hauv mm | Mpa | ||||||||||
| ≤16 | ＞ 16 ≤ 30 | ＞ 30 | ℃ | Impact/J | |||||||
| ≥ | |||||||||||
| 20 | / | / | / | / | 245 | 235 | 225 | ≥410 | ≥ 20 | - | - |
| 45 | / | / | / | / | 335 | 325 | 315 | ≥590 | ≥14 | - | - |
| 20 Mn | / | / | / | / | 275 | 265 | 255 | ≥450 | ≥ 20 | - | - |
| q345 ib | ≤ 0.012 | ≤0.10 | / | / | 345 | 325 | 295 | 470-630 : kuv | ≥ 20 | 20 | 34 |
| qw 345c | ≤ 0.012 | ≤0.10 | / | ≥0.015 | 345 | 325 | 295 | 470-630 : kuv | ≥ 21 | 0 | 34 |
| qw 345d | ≤ 0.012 | ≤0.10 | / | ≥0.015 | 345 | 325 | 295 | 470-630 : kuv | ≥ 21 | -20 | 34 |
| 45mn 2 | / | ≤ 0.25 | / | / | 885 | ≥735 | ≥10 | - | - | ||
| 27 Sib | / | ≤ 0.30 | / | / | 980 | ≥835 | ≥12 | - | - | ||
Production Show:
Qhov zoo:
Cov khoom siv raw yog los ntawm cov khoom siv sab saum toj uas cog lus rau qhov zoo.
Cov thev naus laus zis raug lees paub qhov tseeb qhov ntev ntev.
Pab neeg muag khoom tau zoo muab cov lus pom zoo rau koj.
Pab neeg tom qab muag muab thiab kev txhawb nqa rau cov khoom lav.
Kev Tswj Xyuas Zoo:
Peb qhov kev pabcuam:
