SA-106B Mechanical Structure Tube

ASTM SA-106B Mechanical structure seamless pipe is a type of steel pipe formed by punching through round steel, with no welds on the surface. According to the production method, seamless steel pipes are divided into hot-rolled seamless steel pipes, cold-rolled seamless steel pipes, cold-drawn seamless steel pipes, and hot-expanded seamless steel pipes. Seamless steel pipes are classified into two types based on their cross-sectional shape: circular and special-shaped.
The ASTM SA-106B is a standard specification for seamless carbon steel pipe that is commonly used in high-temperature service applications. This type of pipe is primarily designed to handle the transportation of fluids and gases in critical systems such as power plants, refineries, and chemical processing plants. The material properties of ASTM SA-106B make it an ideal choice for applications requiring durability and strength under both high-pressure and high-temperature conditions.
Material Composition

The ASTM SA-106B grade pipe is primarily composed of carbon steel, with the following approximate chemical composition:

Carbon (C): 0.30% max

Manganese (Mn): 0.60% – 0.90%

Phosphorus (P): 0.035% max

Sulfur (S): 0.035% max

Silicon (Si): 0.10% – 0.35%

The relatively high carbon content allows the material to withstand higher stress, making it suitable for applications where high strength and durability are necessary.

Mechanical Properties

ASTM SA-106B offers impressive mechanical properties, including:

Tensile Strength: 60,000 to 85,000 psi (414 to 586 MPa)

Yield Strength: 35,000 psi (241 MPa) minimum

Elongation: 20% minimum in 8 inches (200 mm) and 23% in 2 inches (50 mm)

Hardness: The maximum hardness is typically 85 HRB.

These properties ensure that the SA-106B pipe is robust and reliable under varying pressures and temperatures, making it ideal for demanding industrial applications.

High-Temperature Resistance

One of the most notable characteristics of ASTM SA-106B is its ability to perform well under high-temperature conditions. The material is designed to resist oxidation and deterioration at temperatures up to 750°F (399°C). This makes it an excellent choice for steam, hot water, and other applications that involve high-temperature fluids or gases.

Seamless Design

The pipe is manufactured using the seamless process, which means that there are no welded seams. This gives ASTM SA-106B pipe greater strength, as it avoids weaknesses that can arise at weld points. The seamless design also makes it resistant to corrosion and leakage, ensuring long-term performance in harsh operating conditions.

Application
Application scope of seamless steel pipes is very wide, including structures, fluid transportation, low to medium pressure boilers, high-pressure boilers, fertilizer equipment, petroleum cracking, geological drilling, diamond core drilling, petroleum drilling, ships, automotive half-shaft sleeves, diesel engines, etc. The use of seamless steel pipes will ensure no leakage problems, guarantee the usage effect, and improve material utilization. It can be seen that the application of seamless steel pipes mainly covers three major fields. The first is the construction field, which can be used for underground pipeline transportation, including extracting groundwater during construction. The second is the processing field, which can be used for mechanical processing, bearing sleeves, etc. The third is the electrical field, including gas pipelines and fluid pipelines for hydropower generation.

Why us?

We focus on the research, development, production and sales of seamless steel pipes, special-shaped steel pipes and hydraulic cylinders. We have a complete production chain and an advanced equipment system, including piercing machines, cold drawing machines, hot rolling machines, high-precision flaw detection and testing equipment. The company has passed multiple authoritative certifications such as ISO9001, API, SGS, CCS, DNV, ABS, CE, RoHS, etc., ensuring that each product complies with international standards. We are committed to providing customers with high-quality, customizable solutions to meet diverse application needs.

Relying on our own built processing base and modern workshops, combined with multiple branches and storage centers across the country, we have achieved sufficient inventory and efficient logistics coordination, significantly shortening the delivery cycle and ensuring the rapid delivery of orders.

We have established a complete service and support system. After the order is signed, the professional after-sales team can provide timely and safe on-site guidance and technical support to ensure that customers are at ease throughout the process from procurement to use.

FAQ:

1. Do you support customized design and production?

Sure. We have a professional engineering team that can conduct customized design and production with special sizes, control systems or OEM according to your requirements.

2. How fast can you deliver?

In stock sizes, it takes 3-5 days. For customized sizes, it takes 30-35 days.

3. What payment methods do you support?

We support TT payment. Generally, 30% to 50% of the payment is made in advance, and the remaining amount is paid before shipment.

4. Can you provide material certification (MTC)?

Yes, we will provide MTC to you after production is completed to ensure that the material quality meets the standards.

5. What is the minimum order quantity?

Generally, we accept trial orders. The minimum order quantity is 1-3 tons, which can be determined according to different products.

Certification:

Packaging and Transportation: