a53 seamless pipe

A53 Seamless Pipe - Industrial Grade Carbon Steel Piping Solutions

Product Overview

Our pipes are often triple-certified (A53/A106/API 5L) to provide maximum flexibility for your inventory.

ASTM A53 Type S seamless pipes from JS FITTINGS meet stringent dual-standard compliance (ASTM A53 +EN 10216-1 ) for critical fluid transport systems. Our A53 Seamless Pipe eliminates weld seam vulnerabilities through precision hot-working processes, delivering superior structural integrity for steam, water, gas, and air lines. With 30,000-ton annual production capacity and 42 years of manufacturing expertise, you receive dimensionally accurate pipes with ±1% OD tolerance and ±12.5% wall thickness precision. Our automated production lines ensure consistent quality across Grade A and Grade B specifications, while integrated logistics networks guarantee reliable delivery for your large-scale projects.

Key Features & Advantages

Weld-Free Construction Benefits

· Zero longitudinal seam eliminates primary failure points under hoop stress

· Superior performance in coiling, bending, and flanging operations

· Enhanced fatigue resistance for cyclic pressure applications

Production Precision Standards

· Uniform wall thickness achieved through rotary piercing process

· Precision-engineered beveling for direct welding compatibility

· Controlled dimensional tolerances per ASTM A530 specifications

Dual-Purpose Engineering Solution

· Bridges structural and pressure applications in single inventory

· Hot-dip galvanizing compatibility for corrosion protection

· Ready-to-use pipe end treatments reduce installation time

Technical Specifications

 Standards & Certifications

Primary Standards Compliance

· ASTM A53 Type S (Seamless) specification

· API 5L Grade B for oil & gas applications

· EN 10216-1  European structural hollow sections

Quality Certifications

· ISO 9001:2015 quality management systems

· CE marking for European market compliance

· GOST-R certification for Russian markets

Chemical Composition & Mechanical Properties

Grade B Chemical Composition (Weight %)

· Carbon (C): 0.30% max

· Manganese (Mn): 1.20% max

· Phosphorus (P): 0.05% max

· Sulfur (S): 0.045% max

· Silicon (Si): 0.40% max

Enhanced Mechanical Performance

· Flattening test: No cracking at 2/3 wall thickness reduction

· Drift expanding test: Zero cracks at 8% expansion rate

· Hydrostatic test: 1.5x design pressure for 10 seconds minimum

Manufacturing Process

Hot Working Seamless Production

1. Billet heating in rotary hearth furnaces (1200°C)

2. Rotary piercing creates hollow shell

3. Plug rolling achieves precise wall thickness

4. Sizing and straightening for dimensional accuracy

Quality Control Integration

· Automated ultrasonic testing for lamination detection

· Real-time dimensional monitoring during production

· Heat treatment for stress relief and grain refinement

Surface Finish & Coating Options

Standard Surface Treatments

· Black finish with light oil coating

· Hot-dip galvanized per ASTM A153 (86 microns minimum)

· Fusion bonded epoxy (FBE) for buried applications

Advanced Coating Systems

· Three-layer polyethylene (3LPE) for pipeline projects

· Internal cement lining for potable water systems

· Specialized coatings for marine environments

Applications

Industrial Fluid Transport

Your A53 Seamless Pipe handles steam distribution, compressed air systems, and hydraulic fluid networks. The seamless construction eliminates weld-related corrosion initiation points in aggressive media.

Structural Engineering

· Building framework and support columns

· Pedestrian railings and architectural elements

· Machinery base construction and equipment mounting

Specialized Systems

· Fire sprinkler networks requiring pressure integrity

· HVAC distribution systems for commercial buildings

· Process piping in manufacturing facilities

Certificates

Our commitment to quality is backed by international certifications:

• ISO 9001:2015
• CE Marking
• API 5L (for oil and gas applications)
• GOST-R (for Russian market)

Packaging & Delivery

Protective Packaging Standards

· Beveled ends protected with plastic caps

· Bundle strapping with wooden separators

· Moisture-resistant wrapping for overseas shipment

Global Logistics Network

· Dedicated shipping routes to Central Asia and Middle East

· Container optimization for 20ft/40ft configurations

· Express delivery options for urgent project requirements

Customization Service

Precision Cutting Services

· Factory beveling to your welding specifications

· Threading per NPT, BSP, or metric standards

· Custom length cutting with ±3mm tolerance

Value-Added Processing

· Hydrostatic testing to your pressure requirements

· Special heat treatment for enhanced properties

· Marking and identification per project specifications

Quality Control

Comprehensive Testing Protocol

Our quality system ensures every A53 Seamless Pipe meets your specifications through:

· Chemical composition verification using spark OES analysis

· Dimensional inspection with laser micrometers

· Non-destructive testing including ultrasonic and eddy current

· Mechanical property validation per ASTM A370

Documentation Package

· Mill test certificates with actual test results

· Material traceability reports

· Third-party inspection reports when required

Customer Reviews

"The surface finish of the A53 black pipes was excellent, and the dimensional consistency across the 500-ton order was impressive."

"I am thoroughly impressed with the quality of the seamless pipe fittings provided by JS FITTINGS. Each piece we've received has been meticulously crafted, displaying a standard of workmanship that is truly top-notch."

"I have been consistently impressed with the service provided by JS FITTINGS, particularly their efficient production and fast delivery times."

FAQ

Q: What's the difference between Grade A and Grade B seamless pipes?

A: Grade B offers higher yield strength (241 MPa vs 207 MPa) and enhanced impact resistance, making it suitable for pressure applications and structural use.

Q: Can you provide galvanized seamless pipes?

A: Yes, we offer hot-dip galvanizing per ASTM A153 standards with minimum 86-micron zinc coating thickness.

Q: What testing documentation do you provide?

A: Complete mill test certificates, dimensional reports, and chemical analysis certificates accompany every shipment.

Q: How do you ensure consistent wall thickness?

A: Our rotary piercing and plug rolling process, combined with ultrasonic thickness monitoring, maintains ±12.5% tolerance control.

Contact Us

Get your A53 Seamless Pipe quote today. Email admin@jsfittings.com  for technical specifications and pricing.