Ø101.6×3.18 mm (NPS 3 1/2" DN 90) ASTM A53 Steel Pipe
101.6x3.18mm 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 7.718448 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.
Add to Quote Request
Select length and quantity to add to your quote cart
Minimum order: 108 pieces
Minimum order: 10 t per size (from 5 t if the size is in production)
Applications & Usage
This medium-duty Steel water & gas pipe is commonly specified for furniture manufacturing, enclosures, brackets, and general fabrication. The 3.18mm wall thickness provides excellent strength-to-weight ratio 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
| Specification | Value |
|---|---|
| Dimensions | Ø 101.6mm × 3.18mm wall |
| Weight per Meter | 7.718 kg/m |
| Material | Steel |
| Alloy/Grade | ASTM A53 Grade A |
| Standard | ASTM A53/A53M |
| Standard Length | 6m |
| Nominal Size (NPS / DN) | NPS 3½" / DN 90 |
| OD × Wall (inch) | 4.000 × 0.125 in |
| Weight (lb/ft) | 5.18 lb/ft |
| Hydrostatic Test Pressure | 1120 psi (7.7 MPa) |
| Minimum Order per Size | 10 t |
| Cut-to-Length Range | 4000 – 12000 mm |
Section Properties
Nominal values calculated from nominal dimensions.
| Property | Value |
|---|---|
| Cross-sectional area(A) | 9.83 cm² |
| Second moment of area(I) | 119 cm⁴ |
| Radius of gyration(i) | 3.48 cm |
| Elastic section modulus(Wel) | 23.5 cm³ |
| Plastic section modulus(Wpl) | 30.8 cm³ |
| Torsional inertia constant(It) | 238 cm⁴ |
| Torsional modulus constant(Ct) | 46.9 cm³ |
| Surface area per metre(As) | 0.319 m²/m |
| Length per tonne | 130 m |
Similar Sizes
Explore alternative dimensions that might suit your needs