Chimiro Seamless simbi Pipe yekutumira kunze
rondedzero yechigadzirwa
Standard:GB/T8162-2008
Giredhi:20, 45, 20Mn, Q345B, Q345C, Q345D, 45Mn2, 27SiMn
Deliver Codition:Hot rolling
Size Range:OD 73MM-630MM , Ukobvu 4MM-35MM
Kushivirira:Maererano neGB/T8162-2008
Urefu:Sekukumbira
MTC:GB/T19001-2008
chigadzirwa parameter
Chemical Compostion:
Giredhi | C | Si | Mn | P | S | Nb | V | Ti | Cr | Ni | Cu |
20 | 0.17-0.23 | 0.17-0.37 | 0.35-0.65 | ≤0.035 | ≤0.030 | / | / | / | ≤0.25 | ≤0.30 | ≤0.25 |
45 | 0.42-0.50 | 0.17-0.37 | 0.50-0.80 | ≤0.035 | ≤0.030 | / | / | / | ≤0.25 | ≤0.30 | ≤0.25 |
20Mn | 0.17-0.23 | 0.07-0.37 | 0.70-1.00 | ≤0.035 | ≤0.030 | / | / | / | ≤0.25 | ≤0.30 | ≤0.25 |
Q345B | ≤0.20 | ≤0.50 | ≤1.70 | ≤0.035 | ≤0.035 | ≤0.07 | ≤0.15 | ≤0.20 | ≤0.30 | ≤0.50 | ≤0.30 |
Q345C | ≤0.20 | ≤0.50 | ≤1.70 | ≤0.035 | ≤0.030 | ≤0.07 | ≤0.15 | ≤0.20 | ≤0.30 | ≤0.50 | ≤0.30 |
Q345D | ≤0.18 | ≤0.50 | ≤1.70 | ≤0.035 | ≤0.025 | ≤0.025 | ≤0.15 | ≤0.20 | ≤0.30 | ≤0.50 | ≤0.30 |
45Mn2 | 0.42-0.49 | 0.17-0.37 | 1.40-1.80 | ≤0.035 | ≤0.035 | / | / | / | ≤0.25 | / | ≤0.25 |
27SiMn | 0.24-0.32 | 1.10-1.40 | 1.10-1.40 | ≤0.035 | ≤0.035 | / | / | / | ≤0.30 | / | ≤0.20 |
Mechanical Properties:
Giredhi | Kuumbwa Kwemakemikari | Yeild Strengthmin Mpa | Tensile Simba | Elongation | Impact Test | ||||||
T mu mm | Mpa | ||||||||||
≤16 | >16 ≤30 | >30 | ℃ | Impact/J | |||||||
≥ | |||||||||||
20 | / | / | / | / | 245 | 235 | 225 | ≥410 | ≥20 | - | - |
45 | / | / | / | / | 335 | 325 | 315 | ≥590 | ≥14 | - | - |
20Mn | / | / | / | / | 275 | 265 | 255 | ≥450 | ≥20 | - | - |
Q345B | ≤0.012 | ≤0.10 | / | / | 345 | 325 | 295 | 470-630 | ≥20 | 20 | 34 |
Q345C | ≤0.012 | ≤0.10 | / | ≥0.015 | 345 | 325 | 295 | 470-630 | ≥21 | 0 | 34 |
Q345D | ≤0.012 | ≤0.10 | / | ≥0.015 | 345 | 325 | 295 | 470-630 | ≥21 | -20 | 34 |
45Mn2 | / | ≤0.25 | / | / | 885 | ≥735 | ≥10 | - | - | ||
27SiMn | / | ≤0.30 | / | / | 980 | ≥835 | ≥12 | - | - |
Production Show:
Advantage:
Raw material inobva Kumusoro kugadzira iyo inovimbisa mhando yepamusoro.
Tekinoroji chaiyo inosimbisa iyo chaiyo saizi kushivirira.
Chikwata chekutengesa chinoshanda chinokupa zano rakakodzera.
Mushure mekutengesa timu inopa uye rutsigiro rwechigadzirwa garandi.
Kudzora Hunhu:
Basa redu: