Shandong small diameter seamless steel pipe specifications 89mm below the diameter of -4mm above the small diameter of the seamless steel pipe can be called small-diameter seamless steel pipe, small-caliber seamless steel pipe can also be divided into: seamless small-diameter steel pipe and straight seam (Also known as welding) small-caliber seamless steel pipe, generally below the outer diameter of steel pipe 89mm, 4mm above; can be collectively referred to as small-caliber seamless steel pipe. Small diameter cold drawn seamless steel pipe is a hollow, square, rectangular steel without seams around. Seamless steel pipe is made of steel ingot or solid tube through the perforation capillary, and then by hot-rolled, cold-rolled or cold dial made. Seamless steel pipe has a hollow section, a large number of pipes used to transport fluid, steel and bar and other solid steel compared to the same bending torsional strength, lighter, is an economical section of steel, widely used in the manufacture of structures Pieces and mechanical parts, such as oil drill pipe, automotive drive shafts, bicycle racks and construction of steel scaffolding. Small diameter seamless steel pipe material: 10 # 20 # 35 # 45 # 16Mn 27SiMn 15CrMo 12Cr1MoV 10CrMo910 T91 P91 J55 K55 Q345 Cr5Mo2) 20 #, 35 #, 45 #, 16Mn, 27SiMn3) 10 #, 20 #, 35 # 45 #, 16Mn, 27SiMn, 12Cr1MoV, 10CrMo910, 15CrMo and the like.
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