Manufacture Oilfield Casing Pipes / Carbon Seamless Steel Pipe / Oil Drilling Tubing Pipe
CHEMISTRY CONSTITUTE TABLE OF MAIN PRODUCT STEEL GRADE | ||||||||||
Steel Grade | Chemistry Constitute | |||||||||
C | Si | Mn | Cr | Ni | Mo | P | S | Ti | Cu | |
Q195 | 0.06~0.12 | ≤0.30 | 0.25~0.50 | ≤0.3 | ≤0.3 | - | ≤0.045 | ≤0.050 | - | ≤0.30 |
Q235 | 0.14~0.22 | ≤0.30 | 0.30~0.65 | ≤0.3 | ≤0.3 | - | ≤0.045 | ≤0.050 | - | ≤0.30 |
Q345B | ≤0.20 | ≤0.55 | 1.00~1.60 | - | - | - | ≤0.040 | ≤0.040 | - | - |
10# | 0.07~0.13 | 0.07~0.37 | 0.35~0.65 | ≤0.15 | ≤0.3 | - | ≤0.035 | ≤0.035 | - | ≤0.25 |
20# | 0.17~0.23 | 0.07~0.37 | 0.35~0.65 | ≤0.25 | ≤0.3 | - | ≤0.035 | ≤0.035 | - | ≤0.25 |
35# | 0.32~0.39 | 0.07~0.37 | 0.50~0.80 | ≤0.25 | ≤0.3 | - | ≤0.035 | ≤0.035 | - | ≤0.25 |
45# | 0.42~0.50 | 0.07~0.37 | 0.50~0.80 | ≤0.25 | ≤0.3 | - | ≤0.035 | ≤0.035 | - | ≤0.25 |
20Cr | 0.18~0.24 | 0.07~0.37 | 0.50~0.80 | 0.70~1.00 | ≤0.3 | - | ≤0.035 | ≤0.035 | - | ≤0.30 |
40Cr | 0.37~0.44 | 0.07~0.37 | 0.50~0.80 | 0.80~1.10 | ≤0.3 | - | ≤0.035 | ≤0.035 | - | ≤0.30 |
20CrMo | 0.17~0.24 | 0.07~0.37 | 0.40~0.70 | 0.80~1.10 | ≤0.3 | 0.15~0.25 | ≤0.035 | ≤0.035 | - | ≤0.30 |
30CrMo | 0.26~0.34 | 0.07~0.37 | 0.40~0.70 | 0.80~1.10 | ≤0.3 | 0.15~0.25 | ≤0.035 | ≤0.035 | - | ≤0.30 |
35CrMo | 0.32~0.40 | 0.07~0.37 | 0.40~0.70 | 0.80~1.10 | ≤0.3 | 0.15~0.25 | ≤0.035 | ≤0.035 | - | ≤0.30 |
42CrMo | 0.38~0.45 | 0.07~0.37 | 0.50~0.80 | 0.90~1.20 | 1.00~1.40 | 0.15~0.25 | ≤0.035 | ≤0.035 | - | ≤0.30 |
20CrMoTi | 0.17~0.23 | 0.07~0.37 | 0.40~0.70 | 0.45~0.75 | ≤0.3 | - | ≤0.035 | ≤0.035 | - | ≤0.30 |
35Mn2 | 0.32~0.39 | 0.07~0.37 | 1.40~1.80 | ≤0.3 | ≤0.3 | - | ≤0.035 | ≤0.035 | - | ≤0.30 |
40Mn2 | 0.37~0.44 | 0.07~0.37 | 1.40~1.80 | ≤0.3 | ≤0.3 | - | ≤0.035 | ≤0.035 | - | ≤0.30 |
35SiMn | 0.32~0.40 | 1.10~1.40 | 1.10~1.40 | ≤0.3 | ≤0.3 | - | ≤0.035 | ≤0.035 | - | ≤0.30 |
15Mn | 0.12~0.16 | 0.07~0.37 | 0.70~1.00 | ≤0.25 | ≤0.3 | - | ≤0.035 | ≤0.035 | - | ≤0.25 |
20Mn | 0.17~0.23 | 0.07~0.37 | 0.70~1.00 | ≤0.25 | ≤0.3 | - | ≤0.035 | ≤0.035 | - | ≤0.25 |
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CHEMISTRY CONSTITUTE TABLE OF MAIN PRODUCT STEEL GRADE | ||||||||||
Steel Grade | Chemistry Constitute | |||||||||
C | Si | Mn | Cr | Ni | Mo | P | S | Ti | Cu | |
Q195 | 0.06~0.12 | ≤0.30 | 0.25~0.50 | ≤0.3 | ≤0.3 | - | ≤0.045 | ≤0.050 | - | ≤0.30 |
Q235 | 0.14~0.22 | ≤0.30 | 0.30~0.65 | ≤0.3 | ≤0.3 | - | ≤0.045 | ≤0.050 | - | ≤0.30 |
Q345B | ≤0.20 | ≤0.55 | 1.00~1.60 | - | - | - | ≤0.040 | ≤0.040 | - | - |
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