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SINO ENGINEERING  GROUP(HK) CO., LIMITED
Beijing Add:18th  Floor ,Bright China Chang An Buliding  
158 Indoor Street,Jianguo Gate,Dongcheng  District ,Beijing China
Tel: +86 10-57196788Fax:  +86 10-57199088
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Steel Products

Low alloy, pressure vessel, corrosion- resistant steel

Low alloy, pressure vessel, corrosion- resistant steel
  • ProductsLow alloy, pressure vessel, corrosion- resistant steel

Detailed

Low alloy, pressure vessel, corrosion- resistant steel

 

Variety
grades
Delivery standards
HSLA steel
Q345C-Q690A、E
S355JR、GR50、GR55
GR60、GR65
Supply as per national standard, industrial standard, JIS, ASTM and DIN and technique specification etc.

 

 

 

dimension
grades
Delivery standards
Purposes and characteristics
Gas cylinder steel
HP295
HP325
HP345
Supply as per national standard,industrial standard, JIS, ASTM andDIN and technique specification etc.
 
Pressure vessel steel
P235S.Q245RQ345R,Q370R 15CrMoR.
16MnDR.
15MnNiDR
Supply as per national standard, JIS, ASTM and DIN and technique specification etc.
Low inclusion content, highanti-crack sensitivity; Mainly used for pressure vessel manufacturing as welding gas cylinders, liquefied petroleum gas cylinders, acetylene cylinders and oxygen cylinders, etc.
Gas cylinder steel has acquired production license of AQSIQ.
Weathering steel
09CuPCrNiA
Q400NQR1 Q450NQR1
Q355GNH
Supply as per national standard, industrial standard, JIS, ASTM and DIN and technique specification etc.
Good mechanical, welding property and weather resistance (high weather resistance), low crack sensitivity, fine machine shaping, precise dimension, good slab shape and surface quality.
Mainly used in manufacturing rail truck, stadiums and chemical equipment etc.
As the fourth domestic steel enterprises (the other three are Baoshan Steel, Wuhan Steel and Anshan
Acid-resistant steel
 
LGNS1
 
Supply as per national standard, industrial standard, JIS, ASTM and DIN and technique specification etc.
High weather resistance and sulfur corrosion resistance
Mainly used in some place where sulfur corrosion resistance is necessary, such as coal-fired switch, power chimney, tobacco flue-curing house, etc.
For the application in tobacco industry, our product has passed acid resistance testing of the products Huazhong University of Science and Technology. we has acquired production license of China National Tobacco Corporation.

 

 

        Main performance index

 

grades
MPa
Yield strength, MPa
Mpa
Tensile strength, MPa
Elongation
Other indicators
LGNS1
≥300
≥440
≥22
Corrosion resistance is in line with tobacco industry requirement 
HP295
≥295
440-560
≥26
Yield ratio is less than or equal to 0.8
Q355GNH
≥355
490-630
≥22
Corrosion resistance index is more than or equal to 6.0
09CuPCrNi-A
≥345
≥380
≥22
Relative corrosion rate is more than or equal to 55%
Q450NQR1
≥450
≥550
≥22
Relative corrosion rate is more than or equal to 55%

 

 

        Key process and technology guarantee

        1.Production technology of clean steel. To guarantee good formability through inclusion and gas content control.
        2.Narrow chemistry control technology. Control corrosion resistant steel [C]≤0.07% to guarantee good weldability. Control Ni/Cu ratio rationally to guarantee good corrosion resistance. For gas bottle steel, [C]≤0.18% was kept to guarantee well stamping properties.
        3. Accurate control technique for the thickness of coil’s head and tail.
        4. Increase descaling pressure and adopt multipoint descaling to guarantee good surface quality.