Usage For Construction: Hall Structure, Sea Trestle, Airport Structure, ship building, security door frames, garage doors, strengthening liners of steel doors and windows, indoor partition walls, cable brigde structures and Expressway Safety Guards, Balustrade and etc.

Usage For Construction: Hall Structure, Sea Trestle, Airport Structure, ship building, security door frames, garage doors, strengthening liners of steel doors and windows, indoor partition walls, cable brigde structures and Expressway Safety Guards, Balustrade and etc.

Note:1.Ring flanges available overbored or counterbored per customer specification.2.Bolt holes shall be drilled 1/8th inch larger in diameter than the nominal diameter of the bolt, except for flanges larger than 84 inch in diameter which shall be drilled 3/16th inch larger than the nominal diameter

Standard: API 5LUses: For conveying gas,water,and oil in both the oil and natual gas industries.Mechanical Properties:StandardClassGradeYield strength not less than (Mpa)Tensile stength (MPa)Elongation (﹪)Y.S./T.S.(﹪)API 5LPLS1L245Bmin245415b–L290×42min290415b–L320×46min320435b–L360&time

API SPEC 5L/ 5CTProduct nameExecutive standardDimension (mm)Steel code/ Steel gradeCastingAPI 5CT114-219 x 5.2-22.2J55, K55, N80, L80, P110TubingAPI 5CT48.3-114.3 x 3.2-16J55, K55, N80, L80, H40CastingAPI 5L10.3-1200 x1.0-120A, B, X42, X46, X52, PSL1 / PSL2Drill PipeAPI 5DPOuter diameter: 2 3/8'-51/

Chemical composition(%) of EN 10305-1Steel gradeName SteelNumber C(% max) Si(% max) Mn(% max) P(% max) S(% max) E215 1.0212 0.10 0.05 0.70 0.025 0.015 E235 1.0308 0.17 0.35 1.20 0.025 0.015 E355 1.0580 0.22 0.55 1.60 0.025 0.015Mechanical and technological properties of EN 10305-1 Yield strength(min