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A106 GR.A Seamless Steel Pipe of Superior High-Temperature Resistance
ASTM A106 Gr.A seamless pipe offers superior high-temperature resistance and structural integrity. Ideal for high-pressure steam and boiler systems, it ensures reliable performance in extreme thermal environments.
Description
Tianjin Wanlei Steel Pipe Co., Ltd. is one of the leading manufacturers and suppliers of A106 GR.A Seamless Steel Pipe of Superior High-Temperature Resistance in China, featured by quality products and low price. If you're going to wholesale durable A106 GR.A Seamless Steel Pipe of Superior High-Temperature Resistance made in China, welcome to get pricelist and free sample from our factory.
A106 GR.A Seamless Steel Pipe of Superior High-Temperature Resistance
product Introduction
Engineered for extreme thermal environments, this ASTM A106 Gr.A seamless pipe delivers unmatched high-temperature resistance and structural integrity. Its superior heat tolerance makes it the ideal choice for critical high-pressure steam and boiler systems, ensuring long-term reliability and safety where standard pipes fail.
product specification
Mechanical property:
|
Grade |
Tensile Strength (Mpa), Min. |
Yield Strength (Mpa), Min. |
|
A |
330 |
205 |
Tensile Strength (Min. 330 MPa): Ensures the pipe can withstand high internal pressures without rupturing, providing a critical safety margin for fluid transport systems.
Yield Strength (Min. 205 MPa): Guarantees structural stability under load, preventing permanent deformation even in demanding high-temperature service conditions.
Chemical Composition (%)：
|
C |
Mn |
P |
S |
Si |
Cr |
Cu |
Mo |
Ni |
V |
|
0.25max |
0.27to 0.93 |
0.035max |
0.035max |
0.10min |
0.40max |
0.40max |
0.15max |
0.40max |
0.08max |
Low Carbon Content (C ≤ 0.25%): This is the key to superior weldability. It minimizes the risk of cracking during fabrication and installation, making on-site construction faster and safer.
Manganese Reinforcement (Mn 0.27–0.93%): Acts as a strengthening agent that boosts durability without sacrificing the material's toughness or flexibility.
High Purity Control (P, S ≤ 0.035%): Strict limits on Phosphorus and Sulfur reduce brittleness (hot/cold shortness), ensuring the pipe remains tough and resistant to impact even in extreme thermal environments.
Product feature and application
ASTM A106 Grade A Seamless Steel Pipe is engineered for superior high-temperature service, combining robust mechanical strength with excellent fabrication properties to meet the rigorous demands of industrial pressure systems. With a minimum tensile strength of 330 MPa and yield strength of 205 MPa, it maintains structural integrity under sustained thermal and mechanical stress, while its low carbon content (≤0.25%) ensures outstanding weldability and formability-critical for complex field installations without compromising joint reliability. Strict control of impurities (P, S ≤ 0.035%) enhances toughness and resistance to brittle fracture across temperature extremes, and the balanced manganese range (0.27–0.93%) provides optimal strength-to-ductility ratio for long-term durability. This pipe is widely deployed in high-pressure steam lines, boiler tubes, heat exchangers, and petrochemical processing units where consistent performance under elevated temperatures and internal pressures is non-negotiable, making it a trusted choice for critical infrastructure requiring safety, longevity, and compliance with international standards.
Prodection details
ASTM A106 Grade A Seamless Steel Pipe is a high-performance carbon steel solution engineered specifically for elevated temperature service, combining robust mechanical integrity with superior fabrication characteristics. Manufactured from fully killed steel through precise hot-rolling or cold-drawing processes, this seamless pipe eliminates weld seams to ensure uniform strength and leak-proof reliability under high internal pressure. Its low carbon composition (max 0.25%) guarantees exceptional weldability and formability, allowing for easy bending and flanging during installation without compromising structural stability. The pipe's surface typically features a black oxide or varnish coating, as seen in the image, which provides essential corrosion resistance during storage and transit. With a minimum tensile strength of 330 MPa and yield strength of 205 MPa, it maintains rigorous dimensional accuracy and durability, making it the standard choice for critical applications such as power plant steam lines, boiler tubes, and high-temperature fluid transport in petrochemical refineries.
Deliver,shipping and serving
why choose us
"It is awesome to work with Creative. They are amazingly organized, easy to communicate with, responsive with next iterations, and produce beautiful work."
One-stop Solution
We stock a full range of A106 Gr.A seamless pipes from NPS 1/8" to 48", covering all standard schedules. Get exact specs for steam lines or boilers from a single source without delay.
Quality Assurance
Made from killed steel and rigorously tested per ASTM A106, our pipes ensure leak-proof reliability. They offer superior high-temp resistance for safe operation in power plants and refineries.
Global Logistics
With 50 global delivery centers, we guarantee fast dispatch of your steel pipe orders. Our efficient supply chain minimizes downtime for your critical industrial projects.
Expert Support
Our engineers provide expert guidance on material selection and welding for high-temp applications. We support your project from inquiry to installation with professional technical advice.
FAQ
Q: What makes A106 Grade A suitable for high-temperature applications?
A: A106 Grade A is a killed carbon steel specifically designed for high-temperature service, offering excellent stability up to 450°C. Its seamless manufacturing process eliminates weak points like welds, ensuring structural integrity under thermal stress and high pressure in boiler systems.
Q: Can these seamless pipes be easily welded and fabricated on-site?
A: Yes, the low carbon content (max 0.25%) provides superior weldability without requiring complex pre-heating procedures. This allows for efficient bending, flanging, and fusion welding during installation, significantly reducing construction time for your pipeline projects.
Q: How do you ensure the quality and safety of the pipes?
A: Every pipe undergoes strict hydrostatic testing and non-destructive examination (NDE) to verify it meets ASTM A106 standards. We also provide Mill Test Certificates (MTC) with each shipment, guaranteeing traceability and compliance with international safety regulations.
Q: Do you offer custom sizes or specific surface treatments?
A: We provide a wide range of standard sizes from NPS 1/8" to 48" and can customize lengths to minimize waste. The pipes typically feature a black varnish or oxide coating to prevent corrosion during transit, but other end-protection options are available upon request.
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