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About us
Tianjin lefin Industrial
TIANJIN LEFIN STEEL GROUP containing Tianjin lefin Industrial Co.,Ltd. 、Tianjin lefin steel import & export Co.,Ltd and Tianjin Shengqifeng International Trading Co., Ltd. -
Products
Steel Pipe Processing
Our main products include 1/2inch to 16 inch ERW PIPE/GI PIPE which has been produced according to BS1387/ASTM A53/EN10219/EN10255/EN10217 Standard -
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Service Capability
Guarantee Quality
Our steel pipes are suitable for oil, natural gas, shipbuilding, chemical industry, water conservancy, electrical, steel structure, construction and other related fields.
Our main products include 1/2inch to 16 inch ERW PIPE/GI PIPE which has been produced according to BS1387/ASTM A53/EN10219/EN10255/EN10217 Standard
Our main products include 1/2inch to 16 inch ERW PIPE/GI PIPE which has been produced according to BS1387/ASTM A53/EN10219/EN10255/EN10217 Standard
Has rich experience in steel pipe processing, can be customized according to customer requirements according to the drawing and sample processing, assist in the development of new products.
Cuba ASTM A106 GR.B
Category:
Product Description
ASTM A106 Grade B is a standard specification for seamless carbon steel pipe designed for high-temperature service. It is part of the ASTM A106 standard, which covers seamless pipes used in power plants, refineries, boilers, and other high-pressure/temperature applications.
Key Information
ASTM A106 GR.B PIPE
Standard: ASTM A106/A106M
Grade: GR.A, GR.B, GR.C
Outside Diameter: Ranging from NPS 1/8 to NPS 48 (DN 6 to DN 1200)
Wall Thickness: Nominal (average) wall thickness as specified in ASME B36.10M.
Length: Commonly used 5.8M, 6M, 12M, but we can also produces depends on client's requirement.
Permissible Variations Of Mass: The mass of any length of pipe shall not vary more than 10% over and 3.5% under that specified.
Type: Seamless.
Test: Hydrostatic test, Nondestructive electrical test, and Flattening test.
Applications: Pipelines, Boiler systems and Structural purposes.
Chemical Composition
The chemical composition of ASTM A106 Grade B is carefully balanced to ensure strength, ductility, and corrosion resistance. The key elements and their maximum percentages are as follows:
| Composition,% | |
| Grade B | |
| Carbon,max | 0.30 |
| Manganese | 0.29-1.06 |
| Phosphorus,max | 0.035 |
| Sulfur,max | 0.035 |
| Silicon,min | 0.10 |
| Chromium,maxB | 0.40 |
| Copper,maxB | 0.40 |
| Molybdenum,maxB | 0.15 |
| Nickel,maxB | 0.40 |
| Vanadium,maxB | 0.08 |
B These five elements combined shall not exceed 1%.
Mechanical Properties
ASTM A106 Grade B pipes are known for their excellent mechanical properties, making them suitable for demanding environments:
Tensile Strength: Minimum 415 MPa (60,000 psi)
Yield Strength: Minimum 240 MPa (35,000 psi)
Elongation: Varies with pipe size
Manufacturing And Processing
Production Methods
● Hot-Finished Seamless Pipe: Made by piercing a billet and rolling at high temperatures (better for large diameters).
● Cold-Drawn Seamless Pipe: Produced by cold working for tighter tolerances and smoother surfaces.
Heat Treatment
● Normalizing or Stress Relieving: Often applied to enhance mechanical properties.
● Annealing (Optional): Improves machinability for cold-drawn pipes.
Benefits
High Durability: The material can endure challenging environments.
Superior Thermal Performance: Suitable for high-temperature applications like boilers and heaters.
Enhanced Weldability: Low carbon content facilitates efficient fabrication and installation.
Cost-Effective: Combines high performance with affordability.
Compliance with Standards: Adheres to ASTM standards, ensuring reliability and compatibility.
Key Applications
ASTM A106 Gr. B is used in:
Power Generation: Steam lines, boiler tubes, and heat exchangers.
Oil & Gas: High-pressure pipelines, refineries, and offshore rigs.
Petrochemical Plants: Transporting hydrocarbons, acids, and gases.
Construction & Infrastructure: Structural supports and mechanical systems.
ASTM A106 Grade B is a high-strength, seamless carbon steel pipe optimized for high-pressure and high-temperature environments. Its reliability, standardized properties, and broad industrial acceptance make it a top choice for energy, chemical, and construction sectors.
Address: Hengtai Road,Daqiuzhuang Town,Jinghai County,Tianjin,China
Mob: +8615122229899(whatspp)
Phone: +86 22 58171905
Fax: +86 22 58171902
E-mail:info@lefinsteel.com
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