Astm A333 Grade 1 Seamless Pipe
ASTM A333 Grade 1 seamless or welded steel pipe designed for low-temperature service, offering reliable mechanical strength and impact resistance down to -50°F. Supplied with controlled microstructure, mandatory testing, and export-grade packing for industrial and cryogenic applications.
Standard & Grade
- Standard: ASTM A333
- Grade: Grade 1
- Product type: Seamless or welded carbon/alloy steel pipe
- Intended for low-temperature service
Manufacturing & Heat Treatment
- Manufactured by seamless or welded process
- No filler metal used in welded construction (as specified)
- Pipes are heat treated to control microstructure
Dimensions
- Outside diameter: 19.05 mm – 114.3 mm
- Wall thickness: 2.0 mm – 14 mm
- Maximum length: 16000 mm
Applications
- Low-temperature service pipelines
- Seamless and welded steel piping systems
Inspection & Testing
- Chemical composition inspection
- Mechanical tests: tensile, yield, elongation, hardness
- Flaring, flattening, and bending tests
- Impact test for low-temperature performance
- Surface and dimensional inspection
- Non-destructive electric test
- Hydrostatic test
Surface Treatment
- Oil dip
- Varnish
- Passivation
- Phosphating
- Shot blasting
Packing & Marking
- Bare, bundle, or crate packing
- Wooden protection at both pipe ends
- Sea-worthy export packing as requested
- Each crate marked with order number, heat number, dimensions, weight, and bundle details
Chemical Composition (Typical %)
- Carbon (max): 0.30
- Manganese: 0.40 – 1.06
- Phosphorus (max): 0.025
- Sulfur (max): 0.025
Mechanical Properties
- Yield strength (min): 205 MPa
- Tensile strength (min): 380 MPa
- Elongation: 35%
Impact Test Temperature
- Lowest strike test temperature: -50 °F (-45 °C)