Product Overview – ASME SA333 Grade 1 LTCS Seamless Pipes
ASME SA333 Grade 1 seamless pipes are manufactured under the ASME specification for applications involving low temperature service and regulatory compliance.
They are technically equivalent to ASTM A333 Grade 1 but are specified as SA333 in projects requiring ASME certification, such as pressure systems, EPC projects, and regulated industrial installations.
Grade 1 is a low carbon variant, offering good weldability, ductility, and resistance to brittle fracture at sub-zero temperatures.
These pipes undergo mandatory impact testing to ensure reliable performance in cold environments.
They are widely used in cryogenic systems, refrigeration plants, and low temperature industrial piping.
Standard & International Identification - ASME SA333 Grade 1 LTCS Seamless Pipes
Technical Specifications – ASME SA333 Gr 1 Pipes
| Pipe Type: | Seamless LTCS Pipes |
| Manufacturing Process: | Hot Rolled / Cold Drawn → Normalized → Tested |
| Outer Diameter: | 10 mm to 600 mm |
| Wall Thickness: | 1.5 mm to 60 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 1
(As per ASTM specification)
| Element | Max (%) |
|---|---|
| Carbon (C): | 0.30% |
| Manganese (Mn): | 0.40 – 1.06% |
| Silicon (Si): | 0.10% |
| Phosphorus (P): | 0.025% |
| Sulfur (S): | Max 0.025% | Iron : | Balance |
Note: The above composition ensures ASME SA333 Grade 1 pipes maintain toughness and resist brittle fracture in low temperature environments.
Mechanical Properties – ASME SA333 Gr 1 Pipes
| Property | Minimum Value |
|---|---|
| Tensile Strength | 380 MPa |
| Yield Strength | 205 MPa |
| Elongation | 30% |
| Impact Test | Required at Low Temperature |
These mechanical properties ensure reliable performance in sub-zero conditions with high impact resistance.
ASME Compliance & Low Temperature Performance
ASME SA333 Grade 1 pipes are selected when both low temperature capability and ASME certification are required.
- Why engineers choose SA333:
- 🔸Mandatory impact testing for cold service
- 🔸Ensures ASME code compliance
- 🔸Reliable in sub-zero environments
- 🔸Suitable for regulated industrial systems
- 🔸Accepted in EPC and export projects
This makes SA333 Grade 1 a trusted material for cold service applications.
Industry Applications of ASME SA333 Grade 1 pipes
- Where ASME SA333 Grade 1 pipes are used:
- 🔸Cryogenic & LNG Systems
- 🔸Refrigeration Plants
- 🔸Cold Storage Infrastructure
- 🔸Chemical Processing Units
- 🔸Oil & Gas (Cold Regions)
- 🔸Low Temperature Process Piping
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