Alloy bend pipe

Alloy bent pipe is one of the types of bent pipes, and the production process can be divided into cold bending and hot bending (cold bending and hot bending). Generally, small-diameter pipes can be cold bent, while large-diameter pipes require hot bending. At present, most pipeline networks require bent pipes, mainly used in petroleum, chemical, natural growth gas, steam pipeline networks, bridge engineering, etc. Detailed data and implementation standards for the diameter DN, thickness, and R-degree (bending radius/pipe outer diameter+thickness+R-degree) of bent pipes are required for bending processing. Common R-degrees for bent pipes include: R=2D, R=3D, R=4D, R=5D, R=6D, and can also be produced and processed according to the drawings

Bend pipes are classified according to their manufacturing materials, including carbon steel, stainless steel, alloy steel, special alloy steel, duplex stainless steel, etc; Carbon steel: (20 #, A3, Q235, Q23 excellent, Q235B, 20G, 16Mn, Q345, Q345R, ASTM A234WPB, ASTM A105, etc.); Stainless steel: (304, 304L, 316, 316L, S30408, S30403, S31608, S31603, SUS304, ASTM A403, TP321, TP317L, 347, 0Cr18Ni9, 00Cr19Ni10, 00Cr17Ni14Mo2, 1Cr18Ni9Ti, 06Cr17Ni12Mo2, 022Cr17Ni12Mo2, etc.); Alloy steel: (16MnR, Cr5Mo, 12Cr1MoV, 10CrMo910, 15CrMo, 12Cr2Mo1, A335P22, St45.8/III, A10bB, etc.); Special alloy steel: (TP310S, 904L, Incoloy800, Incoloy825, Incoloy600, Incoloy625, etc.); Dual phase stainless steel: (F51, S31803, S2205, F53, 2507, S32750, F55, 2607, S32760, etc.)

Bend pipe standards: GB/T12459-2017, GB/T13401-2017

Bend pipe petrochemical standards: SH/T3408-2012, SH/T3409-1996