
API 5L Grade B: 5 Things You May Still Don’t Know
API 5L GR.B: 6 Things You May Still Don't Know: CVN Impact Test for GR.B PSL 2 Pipe; DWT test for PSL2 GR.B PIPE; GRADE BM, GRADE BQ, GRADE BN, GRADE BR; Heat Treatment for GR.B PSL 2; Special Grade BR in API 5L PSL2. read more →
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ASTM A252 Specification: The Complete 16 Items Checklist
ASTM A252 is Standard Specification for Welded and Seamless Steel Pipe Piles. ASTM A252 specification covers nominal thickness of the wall steel pipe piles of cylindrical shape and applies to pipe piles in which the steel cylinder acts as a permanent load-carrying member, or as a shell to form cast-in-place concrete piles. read more →
15 Difference: Pipe and Tube
At the first sight, pipe and tube looks the same. There are many similarity for pipes and tubes: all made of metal, with same shape, and all hollow... But there are many difference between them. Let's see the 15 difference between pipe and tube: read more →
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What is Annealing in Steel Pipe Industry
The heat treatment in steel pipe industry is important for manufacturing better quality steel pipe, no matter welded steel pipes or seamless steel pipes. read more →

What is Heat Treatment in Steel Pipe Industry ?
Heat treatment is the process of heating and cooling metals to achieve desired physical and mechanical properties through modification of their crystalline structure. The temperature, length of time, and rate of cooling after heat treatment will all impact properties dramatically. The most common reasons to heat treat include increasing strength or hardness, increasing toughness, improving ductility and maximizing corrosion resistance. read more →
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New Products
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ASTM A335 Grade P22 Alloy Pipe Steel 3inch SCH120
HYSP supplies high quality ASTM A335 Grade P22 Alloy Pipe Steel and tube 3inch SCH120 for high pressure and temperature applications.
ERW Steel Tubing 12inch ASTM A53 B
HYSP Steel Pipe supply you ERW Steel Tubing 12inch ASTM A53 B SCH40 or API 5L ERW steel pipes for your gas and oil line pipe or water pipes application.
API 5L B ERW Steel Tube OD 426MM
HYSP makes API 5L B ERW Steel Tube OD 426mm x 9.53mm WT DRL for your applications like gas and oil line pipe. we can customize size and steel grade per request.
L235 ERW Pipe EN10224 OD 323.9mm
HYSP steel pipe makes L235 ERW Pipe EN10224 OD323.9mm steel tubes for the conveyance of water and other aqueous liquids. we also produce as required size.