Product Overview – ASME SA333 Grade 3 LTCS Seamless Pipes
ASME SA333 Grade 3 seamless pipes are manufactured for low temperature applications where both strength and impact resistance are essential.
They are equivalent to ASTM A333 Grade 3 but are specified as SA333 in ASME code-based projects, especially in industries requiring strict compliance and documentation.
Grade 3 offers higher strength compared to Grade 1 while still maintaining excellent toughness at sub-zero temperatures.
These pipes undergo mandatory Charpy impact testing, ensuring resistance to brittle fracture in cold environments.
They are commonly used in critical process piping, cryogenic systems, and regulated industrial applications.
Standard & International Identification - ASME SA333 Grade 3 LTCS Seamless Pipes
Technical Specifications – ASME SA333 Gr 3 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 70 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): | 0.19% |
| Manganese (Mn): | 0.31 – 0.64% |
| Silicon (Si): | 0.10% |
| Phosphorus (P): | 0.025% |
| Sulfur (S): | Max 0.025% |
| Nickel (Ni): | 3.18 – 3.82% | Iron : | Balance |
Note: The presence of nickel improves toughness and enhances low temperature performance in ASTM SA333 Grade 3 pipes.
Mechanical Properties – ASME SA333 Gr 3 Pipes
| Property | Minimum Value |
|---|---|
| Tensile Strength | 350 MPa |
| Yield Strength | 240 MPa |
| Elongation | 30% |
| Impact Test | Mandatory at Low Temperature |
These properties make Grade 3 suitable for critical low temperature applications requiring higher strength and reliability.
Low Temperature Performance & Material Advantage
ASME SA333 Grade 3 is designed for more demanding low temperature conditions.
- What makes it stand out:
- 🔸Nickel-enhanced composition for improved toughness
- 🔸Higher strength than Grade 1
- 🔸Excellent resistance to brittle fracture
- 🔸Reliable in extreme cold environments
- 🔸Suitable for critical systems
This makes it a specialized grade for high-performance LTCS applications.
Industry Applications of ASME SA333 Grade 3 pipes
- Where ASME SA333 Grade 3 pipes are used:
- 🔸Cryogenic Systems & LNG Plants
- 🔸Petrochemical & Refinery Units
- 🔸Oil & Gas Pipelines
- 🔸Offshore Platforms
- 🔸Low Temperature Pressure Systems
- 🔸Critical Industrial Piping
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