323.8x10.31mm  Steel water & gas pipe ASTM A53 Grade A

Ø323.8×10.31 mm (NPS 12" DN 300 Sch 40) ASTM A53 Steel Pipe

323.8x10.31mm Steel water & gas pipe in ASTM A53 Grade A to ASTM A53/A53M, with an uncoated steel surface suitable for further processing or painting. Nominal weight 79.707988 kg/m.

Minimum order

Minimum 10 t per size. If the size is already in the current production cycle, we can accept orders from 5 t. Standard length 6 m; 4–12 m on request. We confirm the minimum, lead time and grade in your quote.

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Minimum order: 11 pieces

Minimum order: 10 t per size (from 5 t if the size is in production)

Weight per meter:79.708 kg/m
Total length:6 meters
Total weight:478.248 kg

Applications & Usage

This extra heavy-duty industrial Steel water & gas pipe is commonly specified for heavy structural supports, load-bearing frames, and demanding industrial applications. The 10.31mm wall thickness provides exceptional structural integrity while maintaining workability. The natural mill finish provides a cost-effective solution for applications where aesthetics are secondary. Available in standard lengths of 6m, this profile can be easily cut, drilled, and welded to suit your specific requirements.

Technical Specifications

SpecificationValue
DimensionsØ 323.8mm × 10.31mm wall
Weight per Meter79.708 kg/m
MaterialSteel
Alloy/GradeASTM A53 Grade A
StandardASTM A53/A53M
Standard Length6m
Nominal Size (NPS / DN)NPS 12" / DN 300
OD × Wall (inch)12.750 × 0.406 in
ScheduleSch 40
Weight (lb/ft)53.57 lb/ft
Hydrostatic Test Pressure1150 psi (7.9 MPa)
Minimum Order per Size10 t
Cut-to-Length Range4000 – 12000 mm

Section Properties

Nominal values calculated from nominal dimensions.

PropertyValue
Cross-sectional area(A)102 cm²
Second moment of area(I)12487 cm⁴
Radius of gyration(i)11.1 cm
Elastic section modulus(Wel)771 cm³
Plastic section modulus(Wpl)1014 cm³
Torsional inertia constant(It)24974 cm⁴
Torsional modulus constant(Ct)1543 cm³
Surface area per metre(As)1.02 m²/m
Length per tonne12.5 m