According to the American Iron and Steel Institute (AISI), ferrous material is designated as carbon steel when its core makeup is specified to include no more than 1.65 percent manganese, 0.60 percent silicon and 0.60 percent copper and when no minimum content is specified for other alloying elements. Carbon steel pipe enjoys wide use across many industries due to its strength and ease of workability. Because it contains relatively few alloying elements and in low concentrations, carbon steel pipe is relatively inexpensive. Material Standard: ASTM, ASME and API; High Temperature Carbon Steel Pipe: ASTM A106 Gr. B/C, API 5L Gr. B, ASTM A53 Gr. B; Low Temperature Carbon Steel Pipe: ASTM A333 Gr. 3/6; High Yield Carbon Steel Pipe: API 5L Gr. X42/X46/X52/X56/X60/X65/X70/X80and higher. PSL-1/PSL-2; Form: Round, Square, Rectangular Etc; Outer Diameter: 20MM~508MM; Wall thickness: SCH 10. SCH 20, SCH 40, SCH STD, SCH 80, SCH XS, to SCH 160; Length Range: 20 FT (6 meter), 40FT (12 meter)or customized; Ends Type: Beveled ends, Plain ends; End Protection: plastic Caps or iron Caps; Surface Coatings: Natural, Varnished, Black painting, FBE and 3PE, Cladding and Lined etc.