Product Description
Our SA333 Gr 6 is a high-quality carbon steel pipe complying with ASTM A333/A333M standards, designed for low-temperature service. Available in seamless and welded types with various sizes, it offers reliable performance at -45°C, suitable for LNG, petrochemical and refrigeration industries.
Product Features & Advantages
- Strictly meets ASTM A333/A333M standards, with mandatory fine grain practice and heat treatment (normalized, normalized & tempered, or annealed) to ensure excellent low-temperature toughness.
- Dual types (seamless for critical high-pressure services, welded for general low-temperature use) with flexible size options, fitting diverse project requirements from small-scale refrigeration to large LNG facilities.
- Superior cryogenic performance, maintaining ductility and impact resistance at -45°C (Charpy V-notch impact energy ≥18J average), avoiding brittle fracture in extreme cold conditions.
- Cost-efficient manufacturing with no unnecessary nickel addition, offering competitive prices while ensuring consistent quality and compliance with international low-temperature service requirements.
Chemical Composition&Mechanical Properties
Chemical Composition (Max, %)
|
Element |
Content (Max/Range) |
Note |
|
Carbon (C) |
0.30 |
Controls strength and toughness |
|
Manganese (Mn) |
0.29-1.06 |
Enhances low-temperature toughness |
|
Phosphorus (P) |
0.025 |
Minimized to avoid brittleness |
|
Sulfur (S) |
0.025 |
Reduces to ensure weldability |
|
Silicon (Si) |
≥0.10 |
Deoxidizer, improves strength |
|
Cu/Ni/Cr |
≤0.40 each |
Trace elements for stability |
Mechanical Properties (Minimum)
|
Indicator |
Requirement |
Test Standard |
|
Tensile Strength (MPa) |
415 |
ASTM A333/A333M |
|
Yield Strength (MPa) |
240 |
ASTM A333/A333M |
|
Elongation (%) |
25 (varies with wall thickness) |
ASTM A333/A333M |
|
Impact Energy (J) |
18 (average at -45°C) |
Charpy V-notch |
Our Company & Factory
Jiangsu Cunrui Metal Products Co., Ltd. is a professional manufacturer and supplier specializing in carbon steel pipes, with a large-scale production base covering an area of over 20,000 square meters. Our factory is equipped with advanced production lines for seamless and welded pipe manufacturing, as well as a complete set of testing equipment, supporting mass production and customized orders. We have a professional team of 80+ employees, including 12 technical engineers and 8 quality inspectors, ensuring strict control from raw material selection to finished product delivery.
Certifications & Trust
We prioritize product certification and quality transparency, which are the cornerstones of customer trust. Our SA333 Gr 6 pipes have passed strict international certifications, including ISO 9001 quality management system certification, API 5L certification, and ASTM A333/A333M compliance certification. Each batch of pipes is accompanied by a complete MTC and test report, detailing chemical composition, mechanical properties, impact test results, and heat treatment records, ensuring full traceability.
Packaging & Logistics
To ensure the safe delivery of SA333 Gr 6 pipes, especially protecting their low-temperature performance, we adopt professional packaging and flexible logistics solutions tailored to your needs:
Packaging: We use anti-rust oil coating, moisture-proof plastic film wrapping, and sturdy wooden bundles or steel frames for packaging, preventing corrosion, scratches, and impact damage during transportation. Customized packaging (such as waterproof packaging for marine shipping) is available upon request.
Logistics: We cooperate with well-known international logistics companies (DHL, FedEx, Maersk) to provide sea, air, and land transportation services. For large orders, we offer FOB, CIF, and EXW terms, with an on-time delivery rate of over 98%. Door-to-door delivery is also available to simplify your receiving process.
Tracking: You can track your order's logistics status in real time via the tracking number, keeping you updated on the goods' arrival time at all times, and we provide timely feedback on any potential transportation issues.
Transportation
Customized
Sea Freight
Air Freight
Land Freight
FAQs
Q: What makes SA333 Gr 6 suitable for low-temperature service?
A: SA333 Gr 6 is specially designed for low-temperature use with mandatory fine grain practice and heat treatment, ensuring excellent impact toughness down to -45°C. It avoids brittle fracture in cold environments, making it ideal for LNG, refrigeration, and petrochemical low-temperature piping systems-unlike ordinary carbon steel pipes that become brittle at low temperatures.
Q: Can you customize SA333 Gr 6 pipes according to our project's size requirements?
A: Yes, we can customize the outer diameter, wall thickness, and length of SA333 Gr 6 pipes (from 1/8" to 48" OD, Sch 10 to Sch XXS) as long as they comply with ASTM A333/A333M standards. The minimum order quantity for customized sizes is flexible, and we will provide a reasonable quotation and accurate delivery time based on your specific needs.
Q: How do you test the low-temperature performance of SA333 Gr 6 pipes?
A: We conduct mandatory Charpy V-notch impact tests at -45°C for each batch of SA333 Gr 6 pipes, ensuring the average impact energy is no less than 18J. Additionally, we perform hydrostatic testing, non-destructive testing, and physical-chemical testing to verify mechanical properties and quality, with all test results recorded in the MTC.
Q: What is the delivery time for SA333 Gr 6 pipes?
A: For standard sizes in stock, delivery takes 3-7 working days; for customized sizes or large bulk orders, it takes 15-30 working days, depending on the order quantity and production schedule. We prioritize urgent orders and will do our best to shorten the delivery time to meet your project timeline.
