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ASTM A106 A53 Sch40 Seamless Steel Pipe

Brand ZCXH
Product origin Shandong,China
Delivery time 10-20 days
Supply capacity 1000 tons/ month

ASTM A106/A53 Sch40 seamless steel pipes are high-performance industrial tubes meeting rigorous ASTM standards. Sch40 wall thickness ensures robust strength and pressure resistance, ideal for high-demand fluid transport and structural applications. Seamless construction eliminates weld weak points, minimizing leakage risks and enhancing reliability in oil, gas, water, and industrial systems. A106 grades excel in high-temperature service, while A53 variants suit general-purpose use. These pipes offer excellent machinability and weldability, adapting to diverse fabrication needs, with consistent quality ensuring long-term performance in harsh environments.

Product Description

ASTM A106 and ASTM A53 are two distinct seamless steel pipe standards, each optimized for specific industrial scenarios. ASTM A106 seamless pipes are primarily designed for high-temperature and high-pressure service, while ASTM A53 seamless pipes are more suited for general mechanical and low-to-medium pressure applications. "Sch40" (Schedule 40) refers to a standardized wall thickness grade, ensuring consistent pressure-bearing capacity and structural stability. Combined, ASTM A106/A53 Sch40 seamless steel pipes integrate the advantages of both standards and the Sch40 thickness, making them widely used in oil and gas, petrochemical, municipal engineering, and industrial piping systems. Below are their core product features:

Stainless steel seamless pipe

1. Excellent High-Temperature & Pressure Resistance (Dual-Standard Advantage)

The dual compliance with ASTM A106 and A53 standards enhances adaptability to extreme operating conditions:

ASTM A106’s High-Temp Performance:
Specifically engineered for elevated temperatures (up to 482°C / 900°F), this standard ensures the pipe retains mechanical stability under heat. For example, ASTM A106 Grade B (a common grade) maintains a minimum yield strength of 245 MPa (35,500 psi) and tensile strength of 400–510 MPa (58,000–74,000 psi) even at high temperatures, making it ideal for steam lines, boiler feedwater systems, or petrochemical process pipelines.
ASTM A53’s Versatile Pressure Capacity:
Compliant with ASTM A53 (including Grades A and B), the pipe handles low-to-medium pressures reliably. When paired with Sch40 wall thickness, it offers a working pressure range of 1.0–4.0 MPa (145–580 psi) (varies by pipe diameter), suitable for general-purpose fluid transmission (e.g., water, oil, compressed air) in industrial plants or municipal infrastructure.
Sch40 Thickness Contribution:
The standardized Sch40 wall provides a balance of weight and strength—thicker than Sch10/Sch20 (for low-pressure use) but lighter than Sch80 (for ultra-high pressure). This ensures the pipe resists internal pressure without excessive material waste, optimizing cost and installation efficiency.

2. Seamless Structure for Leak-Proof & Efficient Fluid Flow

The seamless manufacturing process (e.g., hot extrusion, cold drawing) eliminates welded joints, a critical advantage for pressure-critical applications:

Leakage Risk Reduction:
Welds are common failure points in pipes (prone to cracking, corrosion, or poor fusion). The seamless design eliminates this vulnerability, ensuring long-term leak tightness—essential for transporting hazardous fluids (e.g., crude oil, chemicals) or high-pressure steam.
Smooth Inner/Outer Surfaces:
Seamless pipes have uniform, smooth inner walls (surface roughness Ra ≤ 1.6 μm) and outer surfaces. This minimizes fluid friction, reducing pressure loss by 10–15% compared to welded pipes. For long-distance pipelines (e.g., oil gathering lines), this translates to lower energy consumption for pumps/compressors.
Uniform Material Integrity:
The seamless process ensures consistent metal grain structure throughout the pipe wall, avoiding material inconsistencies (e.g., voids, inclusions) often found near welds. This enhances overall structural reliability and resistance to fatigue under cyclic pressure.

Product name	Coated steel pipe
Product material	Carbon steel
Color	Customized according to customer needs
Application scenario	Mine ventilation pipe Drain pipe Cable conduit etc
Surface treatment	Plastic coating
Length	Customized according to customer needs
Thickness	2.0mm-130mm
Diameter	1/4"-30"

Details Images

stainless steel pipe

Coated steel pipe application

1, various forms of circulating water system (civil circulating water, industrial circulating water), excellent performance, anti-corrosion life of up to 50 years.
 2. Fire water supply system.
3, the water supply and drainage of various buildings (especially suitable for cold and hot water systems in hotels, hotels and
high-end residential areas).
4, a variety of chemical fluid transportation (acid, alkali, salt corrosion).
5, wire and cable buried pipe, crossing pipe.
6, mine, mine ventilation pipe, supply, drainage pipe.

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