Product Overview

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We supply high-quality A106 Grade B seamless carbon steel tube compliant with ASTM A106 standard. The key information is listed below clearly: Material: Killed carbon steel, low sulfur & phosphorus, stable texture, high temperature resistance. Size: Outer diameter NPS 1/8 - NPS 48; regular length 5.8m/6m/12m, custom cutting available. Wall Thickness: SCH40, SCH80, SCH160; customized thin/thick wall for different pressure levels. Process: Hot rolled seamless pipe, no weld seam, anti-leakage. Surface Treatment: Black paint & anti-rust oil; hot-dip galvanized optional. |
Core Material & Technical Parameters
Chemical Composition
Strict impurity control guarantees pure steel quality and strong corrosion resistance. Silicon content over 0.10% realizes complete deoxidation to prevent high-temperature structural defects.
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Element |
Carbon(C) |
Manganese(Mn) |
Silicon(Si) |
Sulfur(S) |
Phosphorus(P) |
Other Trace Elements |
|
Content |
≤0.25% |
0.29%-1.65% |
≥0.10% |
≤0.035% |
≤0.035% |
Cu≤0.4%;Ni≤0.4%;Cr≤0.4%;Mo≤0.15% |
Mechanical Properties
It maintains stable mechanical performance under extreme temperature and pressure, meeting industrial heavy-duty usage standards.
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Performance Index |
Parameter Value |
|---|---|
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Minimum Tensile Strength |
415MPa (60,000 PSI) |
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Minimum Yield Strength |
240MPa (35,000 PSI) |
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Applicable Temperature Range |
-29℃ ~ 650℃ |
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Max Working Pressure |
26.25MPa |



Unique Product Advantages
✅ High-Temperature & Pressure Resistance
Qualified for medium and high-pressure boiler systems, it runs stably in long-term high-temperature environments without deformation or cracking.
✅ Seamless Leak-Proof Structure
Integrated seamless rolling process eliminates welding weakness, suitable for transporting flammable, explosive and hazardous fluids.
✅ Excellent Machinability
Supports bending, flanging, welding and deep processing, easy for on-site installation and pipeline layout adjustment.
Wide Industrial Applications

A106 Grade B carbon steel tube is a universal industrial pipe, covering multiple heavy industries:
Power & Boiler Industry: Steam pipelines, economizers, superheaters, water wall tubes for thermal power plants
Oil & Gas Refinery: Transportation of crude oil, gasoline, natural gas and process fluid in high-pressure pipelines
Chemical Industry: Conveying non-corrosive chemical medium in chemical reaction and heating systems
Mechanical Engineering: Hydraulic pipeline, structural pipe and equipment auxiliary piping
Construction & Municipal Engineering: High-pressure water supply, heating and steam transmission pipelines
Production & Quality Assurance

All our A106 Grade B carbon steel tubes strictly follow ASTM A106 standard production. We adopt open-hearth, basic-oxygen and electric furnace smelting processes to ensure steel purity. Each batch of products undergoes strict quality tests:
Chemical composition spectral detection
Tensile and yield strength mechanical test
Hydrostatic pressure leak test
Ultrasonic nondestructive flaw detection
We provide complete inspection certificates, factory test reports and custom packaging services (bundled with steel strips, waterproof woven bags).
Why Choose Our A106 Grade B Carbon Steel Tube?

In the competitive industrial pipe market, we focus on high-quality raw materials and standardized production:
Factory Direct Supply: No middlemen, competitive ex-factory price
Custom Service: Support non-standard size cutting, surface processing and logo printing
Global Shipping: Stable supply chain, fast delivery for sea and land transportation
After-Sales Guarantee: Professional engineering team provides technical consultation
Get Free Quote Now
Whether you need bulk wholesale or customized A106 Grade B carbon steel tubes, we can meet your procurement needs. Please contact us to obtain the latest price list, sample pictures and detailed parameter sheets. We sincerely look forward to establishing long-term stable cooperative relations with global buyers!




