Alloy Steel ASME SA335 Grade P5
ASME SA335 / ASTM A335 Grade P5 chromium-molybdenum alloy steel pipe designed for high-temperature and high-pressure service, offering excellent strength, corrosion resistance, and reliable performance in demanding industrial applications.
Steel Grade
ASTM A335 P5 (UNS K41545)
Packing
- Bare packing, bundle packing, or crate packing
- Wooden protection at both ends of tubes
- Suitable for sea-worthy delivery or as requested
- Crate marking includes order number, heat number, dimensions, weight, and bundle details
Inspection and Testing
- Chemical composition inspection
- Mechanical property tests: tensile strength, yield strength, elongation, flaring, flattening, bending, hardness, impact test
- Surface and dimensional inspection
- Non-destructive testing
- Hydrostatic test
Surface Treatment
- Oil-dip
- Varnish
- Passivation
- Phosphating
- Shot blasting
Chemical Composition (%)
| Element | Value |
|---|---|
| Carbon (max) | 0.15 |
| Manganese | 0.30 – 0.60 |
| Phosphorus (max) | 0.025 |
| Silicon (max) | 0.50 |
| Chromium | 4.00 – 6.00 |
| Molybdenum | 0.45 – 0.65 |
Mechanical Properties
| Property | Value |
|---|---|
| Tensile Strength (min) | 415 MPa |
| Yield Strength (min) | 205 MPa |
| Elongation (min) | 30% (L) / 20% (T) |
Material & Manufacture
Pipes are manufactured either hot finished or cold drawn, followed by the specified finishing heat treatment.
Heat Treatment Options
- A / N+T
- N+T / Q+T
- N+T
Mechanical Test Sampling
- Transverse or longitudinal tension test, flattening test, hardness test, or bend test
- Batch furnace: tests on 5% of pipes per lot (minimum 1 pipe for small lots)
- Continuous process: tests on minimum 5% of the lot, at least 2 pipes