The ASTM A249 specification covers nominal-wall-thickness welded tubes and heavily cold worked welded tubes made from the austenitic steels. More specifically, the ASTM A249 specification is intended for uses such as Boiler Superheater heat exchanger condenser tubes be furnished in the heat-treated condition in accordance with the required solution temperature and quenching method. conform to the prescribed tensile and hardness properties such as tensile strength, yield strength, elongation, and Rockwell hardness number. undergo mechanical tests such as tension test, flattening test, reverse-bend test, hardness test, and hydrostatic or nondestructive test.
We deals in the following products of India, China, Taiwan and Korea Origin:- 1)Hot Rolled Steel (Hot Rolled Sheets, Hot Rolled Coils, Hot Rolled Plates, Hot Rolled Bars etc) 2)Galvanized Steel (Galvanized Steel Tapes, Galvanized Steel Wires, Galvanized Steel Strips, Galvanized Steel Coils, Galvanized tubes etc) 3)Cold Rolled Steel (Cold Rolled Steel Strips, Cold Rolled Steel Coils, Cold Rolled Sheets etc) 4)Stainless Steel (Stainless Steel Strips, Stainless Steel Coils, Stainless Steel Wire, Hardened and Tempered Spring Steel, Stainless Spring Steel, Spring Steel Wires etc) 5)Steel Tube and Pipes ( ERW, CRW, CRS, Black, Galvanized, Stainless ) 6)Forged Column Clamps, Girder Clamps, Pressed Clamps, Rapid Clamps, Support Clamps & Wedge Clamps. 7)Heavy Duty Props & Light Duty Props. 8)Nuts, Bolts, Nails & Fastners 9)System Scaffolding, Base Plate & Adjustable Base. 10)Steel Tie Rod, Waller Plates and Wing Nuts. 11)Drop Forged and Pressed Sheet Metal Couplers of all types. 12)Steel Billets, Steel Angle & Steel Channels.
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Polished 304 Stainless Pipe is a standard stainless pipe that has been polished to a 180 Grit Brushed Finish on its exterior for cosmetic and ornamental applications. Unlike the dull mill finish of standard stainless pipe, this polished stainless steel pipe allows your projects to have a more finished look with excellent corrosion resistance making it ideal for handrails, architectural design, restaurant and store fixtures, trade show displays, marine components and more. Just like standard stainless pipe it has an interior weld seam. SPECIFICATIONS: Type 304/304L Welded, ASTM A312 FINISH: 180 Grit Polish, Brushed Finish CHARACTERISTICS: Welding = Excellent Machining / Grinding = Fair Bending / Forming = Good Wear Resistance = Excellent Corrosion Resistance = Excellent MECHANICAL PROPERTIES: Tensile Strength = 85,800 psi Yield Point = 34,000 psi Elongation = 60% in 2" ; Elasticity = 29,000 ksi Shearing Strength = 11,500 psi Brinell Hardness = 170; Density = .289 lb/in AVAILABLE LENGTHS: 4ft. 6ft, 8ft, 10ft, 20ft, or Cut to Size