Product Overview – ASME SA333 Grade 6 LTCS Seamless Pipes
ASME SA333 Grade 6 seamless pipes are manufactured for low temperature service in regulated industrial environments where both performance and ASME code compliance are essential.
They are equivalent to ASTM A333 Grade 6 but are specified as SA333 in ASME-certified projects,including EPC contracts, pressure systems, and export applications.
Grade 6 is the most widely used grade in the SA333 specification, offering an ideal balance of strength, toughness, and weldability
These pipes undergo mandatory Charpy impact testing, ensuring resistance to brittle fracture at low environments.
They are extensively used in LNG plants, cryogenic storage systems, refineries, and offshore installations.
Standard & International Identification - ASME SA333 Grade 6 LTCS Seamless Pipes
Technical Specifications – ASME SA333 Gr 6 Pipes
| Pipe Type: | Seamless LTCS Pipes |
| Manufacturing Process: | Hot Rolled / Cold Drawn → Normalized → Tested |
| Outer Diameter: | 10 mm to 600 mm |
| Wall Thickness: | 2 mm to 75 mm |
| Length: | Single Random Length/Double Random Length/Custom Cut Length |
| Surface Finish: | Black Painted/Varnished/Anti-Corrosion Coating |
| Testing Methods: | Charpy Impact Test (Low Temperature),Hydrostatic Test,Ultrasonic Testing,Radiographic Testing (Optional),PMI Testing |
| Certification : | EN 10204 3.1 / 3.2 MTC |
Third Party Inspection Available
All specifications are in accordance of ASME A333 standards. Mechanical and chemical values are as per standard limits. Mill Test Certificates (MTC) available upon request.
Chemical Composition – ASME SA333 Grade 3
(As per ASTM specification)
| Element | Max (%) |
|---|---|
| Carbon (C): | 0.30% |
| Manganese (Mn): | 0.29 – 1.06% |
| Silicon (Si): | 0.10% |
| Phosphorus (P): | 0.025% |
| Sulfur (S): | Max 0.025% |
| Iron : | Balance |
Note: The above chemical composition ensures ASME SA333 Grade 6 pipes maintain strength and toughness in low temperature environments.
Mechanical Properties – ASME SA333 Gr 6 Pipes
| Property | Minimum Value |
|---|---|
| Tensile Strength | 415 MPa |
| Yield Strength | 240 MPa |
| Elongation | 30% |
| Impact Test | Mandatory at Low Temperature |
These properties ensure reliable performance in cryogenic and sub-zero conditions with resistance to brittle fracture.
ASME Compliance & Low Temperature Performance
ASME SA333 Grade 6 pipes are engineered for critical applications where failure is not an option.
- Why industries rely on this grade:
- 🔸Mandatory impact-tested material
- 🔸ASME code-compliant for project approval
- 🔸Excellent toughness at sub-zero temperatures
- 🔸Reliable for pressure and process piping
- 🔸Widely accepted in global EPC projects
This makes it the most trusted LTCS grade in ASME applications.
Industry Applications of ASME SA333 Grade 6 pipes
- Where ASME SA333 Grade 6 pipes are used:
- 🔸LNG & Cryogenic Plants
- 🔸Oil & Gas Pipelines (Cold Regions)
- 🔸Refineries & Petrochemical Units
- 🔸Offshore Platforms
- 🔸Refrigeration & Cooling Systems
- 🔸Low Temperature Pressure Systems
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