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News
Seamless steel pipes can be used for manufacturing high pressure containers, cylinders. The main grades are 37Mn, 34Mn2V, 30CrMo, 35CrMo, STH11, STH12, STH21, STH22.
Mechanical properties:
|
Standard |
Grade |
Tensile strength（MPA） |
Elongation(%) |
|
GB 18248 |
37Mn |
≥750 |
≥16 |
|
34Mn2V |
≥745 |
≥16 |
|
|
30CrMo |
≥930 |
≥12 |
|
|
35CrMo |
≥980 |
≥12
|
Chemical compositions:
|
Standard |
Grade |
Chemical composition |
||||||||
|
C |
Si |
Mn |
P、S |
Cu |
Ni |
Mo |
Cr |
V |
||
|
GB18248 |
37Mn |
0.34-0.40 |
0.10-0.30 |
1.35-1.65 |
≤0.030 |
≤0.20 |
≤0.30 |
/ |
≤0.30 |
/ |
|
34Mn2V |
0.30-0.37 |
0.17-0.37 |
1.40-1.75 |
≤0.030 |
≤0.20 |
≤0.30 |
/ |
≤0.30 |
0.07-0.12 |
|
|
30CrMo |
0.26-0.34 |
0.17-0.37 |
0.40-0.70 |
≤0.030 |
≤0.20 |
≤0.30 |
0.15-0.25 |
0.80-1.10 |
/ |
|
|
35CrMo |
0.32-0.40 |
0.17-0.37 |
0.40-0.70 |
≤0.030 |
≤0.20 |
≤0.30 |
0.15-0.25 |
0.80-1.10 |
/ |
|
|
JIS G3429 |
STH11 |
≤0.50 |
0.10-0.35 |
≤1.80 |
≤0.035 |
/ |
/ |
/ |
/ |
/ |
|
STH12 |
0.30-0.41 |
0.10-0.35 |
1.35-1.70 |
≤0.030 |
/ |
/ |
/ |
/ |
/ |
|
|
STH21 |
0.25-0.35 |
0.15-0.35 |
0.40-0.90 |
≤0.030 |
/ |
≤0.25 |
0.15-0.30 |
0.80-1.20 |
/ |
|
|
STH22 |
0.33-0.38 |
0.15-0.35 |
0.40-0.90 |
≤0.030 |
/ |
≤0.25 |
0.15-0.30 |
0.80-1.20 |
/ |
|
Sino East Steel Enterprise Co. Ltd. is a leading steel products manufacturer in China specializing in high quality steel products. Located in Tian Jin Industrial Park, Daqiuzhuang, our factory area is 60000 square meters with annual steel production capacity reaching 500,000 MT.
The company has a very good experience in steel manufacturing. Years of technical capabilities and commitment to quality, have enabled us to build a broad client base across a wide range of market. We specialize in the production of the Welded Pipes, Hot Galvanized Pipes, Square Pipes, Galvanized Steel Coil, PPGI Coil, Seamless Steel Pipes, Spiral Pipes, Channel Steel, Angle Steel Bar, Galvanized Steel Strips / Coils, Hot Steel Strips / Coils, Cold Steel Strips / Coils and related products. Our steel products are exported to Australia, America, Middle East, Africa, South America, South East Asia and other countries and regions. Our annual sales volume is above one hundred thousand tons of steel.
The company follows business philosophy of 'Customer First', to strive for the progress with quality service. We sincerely would like to set up business relationship with clients from all over the world in long run.
