Hoʻokumu ʻia ʻo Seamless Steel Pipe no ka lawe ʻana aku
wehewehe huahana
Kūlana:GB/T8162-2008
Papa:20, 45, 20Mn, Q345B, Q345C, Q345D, 45Mn2, 27SiMn
Kūlana hoʻouna:ʻO ka ʻōwili wela
Lahi:OD 73MM-630MM , Mānoanoa 4MM-35MM
Hoʻomanawanui:Wahi a GB/T8162-2008
Ka lōʻihi:E like me ke noi
MTC:GB/T19001-2008
ʻāpana huahana
Huihuʻi Kimia:
| Papa | 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 |
Nā Pono Mechanical:
| Papa | Hoʻohui Kimia | Ikaika Yeildmin Mpa | Ikaika U'i | ʻO ka elongation | Ho'āʻo Impact | ||||||
| T i ka mm | Mpa | ||||||||||
| ≤16 | ＞16 ≤30 | ＞30 | ℃ | Ka hopena/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 | - | - | ||
Hōʻike Hana Hana:
Pōmaikaʻi:
ʻO nā mea maka mai ka mea hana kiʻekiʻe e hoʻohiki nei i ke kūlana kiʻekiʻe.
Hōʻoia ka ʻenehana pololei i ka hoʻomanawanui ʻana i ka nui.
Hāʻawi ka hui kūʻai kūpono iā ʻoe i ka manaʻo kūpono.
Hāʻawi a kākoʻo pūʻulu ma hope o ke kūʻai aku no ka hōʻoiaʻiʻo huahana.
Mana maikaʻi:
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