Specifications: diameter: 320 to 127 mm thickness: 0.4 to 12.7 mm Length: 6 m above, and, in accordance with customer demand, supply and other specifications of steel pipe

SCH 20 steel pipe parameters standard


SCH 20 steel pipe parameters standard
SCH 20 seamless steel pipe
SCH 20 steel pipe
● SCH 20 seamless steel pipe Grade: 10 #
● SCH 20 seamless steel pipe chemical composition:
Carbon C: 0.07 ~ 0.14 "Si Si: 0.17 ~~ 0.37 Manganese Mn: 0.35 to 0.65 sulfur S: ≤ 0.04 Phosphorus P: ≤ 0.35 Chromium Cr: ≤ 0.15 Nickel Ni: ≤ 0.25 Copper Cu: ≤ 0.25
● SCH 20 seamless steel pipe mechanical properties:
Tensile strength σb (MPa): ≥ 410 (42) yield strength σs (MPa): ≥ 245 (25) Elongation δ5 (%): ≥ 25 Reduction of area ψ (%): ≥ 5 hardness: no heat , ≤ 156HB, sample size: Sample size 25mm
● SCH 20 seamless steel pipe heat treatment specifications and microstructure:
Heat treatment specifications: normalizing, 910 ℃, air cooling. Microstructure: ferrite + pearlite.
● SCH 20 seamless steel pipe Delivery Status: Delivery to no heat or heat treatment (annealing, normalizing or high-temperature tempering) state. Requiring treatment delivery should be specified in the contract, not indicated without heat treatment delivery.
Quality carbon structural steel (GB/T699-1999)
The SCH 20 seamless steel pipe, in addition to containing carbon (C) element and contains a certain amount of silicon (Si) (generally not more than 0.40%), manganese (Mn) (generally not more than 0.80%, deoxidation higher can to 1.20% ) alloying elements, without other alloying elements (except for residual elements). Such steel must also ensure that the chemical composition and mechanical properties. Sulfur (S), phosphorus (P) content of impurity elements is generally controlled at 0.035% or less. Control 0.030% called high-quality steel grades "A" should be added later, for example 20A; the P control 0.025% 0.020%, S control, said the premium-quality steel, the grade should be followed plus the "E" to show the difference. For other residual alloying elements from the raw material into a steel, such as chromium (Cr), nickel (Ni), copper (Cu), etc. The content of the general control Cr ≤ 0.25%, Ni ≤ 0.30% Cu ≤ 0.25%. Some grades of manganese (Mn) content of up to 1.40%, known as manganese steel.
SCH 20 seamless steel pipe weight formula: [(OD - Wall Thickness) * thickness] * 0.02466 = kg / m (weight per meter)
Outer diameter of 10mm-426mm

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