News
-
API 5L/ASTM A53 GR.B (Hot Rolled ERW Steel Pipe)
API 5L/ASTM A53 GR.B (Hot Rolled ERW Steel Pipe) Outside Diameter Wall Thickness EXW Outside Diameter Wall Thickness EXW 外径 (mm) 壁厚 (mm) 出厂价 USD/TON 外径 (mm) 壁厚 (mm) 出厂价 USD/TON 219、245 5.0-11.75 $607.98 462 5.75-11.75 $628.25 273 5.0-11.75 $607.98 12.5-13.75 $635.01 ...Read more -
API 5L GR.B/ASTM A53 GR.B (HOT EXPANDED ERW STEEL PIPE)
API 5L GR.B/ASTM A53 GR.B (HOT EXPANDED ERW STEEL PIPE) Outside Diameter Wall Thickness EXW Outside Diameter Wall Thickness EXW 外径 (mm) 壁厚 (mm) 出厂价 USD/TON 外径 (mm) 壁厚 (mm) 出厂价 USD/TON 245, 273 5.0-9.28 $643.38 450, 457, 508, 530 6.5-11.98 $677.16 9.45-9.98 $646.09...Read more -
JIS G3445 Carbon steel tubes for machine structural purposes
JIS G3445 Carbon steel tubes for machine structural purposes This Japanese Industrial Standard specifies the carbon steel tubes, hereinafter referred to as the “tubes”, used for machinery, automobiles, bicycles, furniture, appliances and other machine parts. The tubes shall be manufac...Read more -
Hot extruded steel pipe
Hot extruded steel pipe is used in the production of hot extrusion process to manufacture seamless steel tubes. Hot extrusion is widely used in the production of aluminum, copper and other nonferrous metals pipes and profiles. Hot extrusion of steel for the production of both special pipes and pr...Read more -
Factors of weld defects
Factors of weld defects (1) Material factors: The so-called material factor refers welding base metals and welding materials used, such as wires, rods, flux, and the shielding gas and the like. All of these materials are directly involved in the welding puddle or physico-chemical reaction of the ...Read more -
Hot forging and cold forging
Hot forging means forging blank metal above the recrystallization temperature carried out. Features: reducing the deformation resistance of metals, thus reducing bad forging force needed to deform the material, so that greatly reduced the tonnage forging equipment; altering the structure of ingot...Read more