A53 Structural Steel Pipe is a high-quality carbon steel pipe manufactured according to ASTM A53 standards, widely used in structural and mechanical applications. Produced by Jiangsu Cunrui Metal Products Co., Ltd., our pipes are available in both seamless and welded types, ensuring excellent strength, durability, and reliability. The material composition provides stable mechanical properties, good toughness, and resistance to wear and corrosion.
All products are supplied with mill test certificates (MTC), third-party inspection reports, and international certifications, giving buyers full confidence in quality and compliance. With precise chemical composition control, our A53 Structural Steel Tube guarantees long-term performance in demanding environments.
Key Features & Advantages
International Standard Compliance: Manufactured in accordance with ASTM A53, ensuring global recognition.
Superior Mechanical Strength: High yield and tensile strength suitable for heavy-duty structural use.
Reliable Corrosion Resistance: Surface treatment available (black, galvanized, coated) for extended service life.
Strict Quality Assurance: Each batch tested for chemical and mechanical properties with certification.
Flexible Options: Wide range of sizes and customizable solutions to meet project requirements.
Applications
Our A53 Structural Steel Pipe is widely applied in:
Construction and building structures
Oil, gas, and water transportation
Bridges and infrastructure projects
Mechanical engineering and fabrication
General structural support in industrial projects
By providing tailored solutions, we help customers achieve cost-effective and long-lasting results in multiple industries.
Product Specifications & Technical Data
Basic Information
|
Parameter |
Specification (Typical Range) |
|
Standard |
ASTM A53 / ASME SA53 |
|
Type |
Seamless / Welded |
|
Grade |
A / B |
|
Outer Diameter (OD) |
21.3 mm – 660 mm |
|
Wall Thickness |
2.5 mm – 50 mm |
|
Length |
5.8 m / 6 m / 11.8 m / Custom |
|
Surface Treatment |
Black, Galvanized, Oiled, Varnished |
|
Yield Strength |
≥ 240 MPa (Grade A), ≥ 240 MPa (Grade B) |
|
Tensile Strength |
330–415 MPa (Grade A), 415–550 MPa (Grade B) |
|
Hardness |
HB ≤ 197 (typical) |
|
Certification |
ISO, SGS, BV, CE, MTC |
Chemical Composition
|
Element / Property |
Grade A (Max / Typical) |
Grade B (Max / Typical) |
|
Carbon (C) |
0.25% |
0.30% |
|
Manganese (Mn) |
1.20% |
1.20% |
|
Phosphorus (P) |
0.06% |
0.06% |
|
Sulfur (S) |
0.05% |
0.05% |
|
Silicon (Si) |
0.10–0.35% |
0.10–0.35% |
|
Copper (Cu) |
– |
– |
Notes:
Composition follows ASTM A53 / ASME SA53 standards.
Seamless and welded pipes available with MTC and third-party inspection.
Custom alloy or heat-treated options can be provided upon request.
Customization Services
Special dimensions available upon request
Cutting, bending, threading, drilling, and welding services
Custom surface treatments (galvanized, painting, coating)
OEM production and production based on drawings
Flexible MOQ to support both small and bulk orders
Price & Delivery
We offer competitive pricing with bulk order discounts. Standard sizes are available from stock for fast shipment, while custom orders are delivered within a controlled lead time. With stable production capacity, we ensure timely delivery to meet project deadlines.
Our Strength
Factory Scale: Modern production facilities with advanced equipment
Strong Capacity: Monthly output exceeding 5,000 tons
Export Expertise: Experience in supplying to more than 60 countries
Certified Quality: ISO 9001, SGS, BV, and CE approvals
Technical Team: Professional engineers and QC team to ensure performance consistency
Service & Support
Fast response to inquiries within 12 hours
Professional technical support and material selection guidance
Export-standard seaworthy packaging to protect goods during shipment
Clear return and replacement policy for any quality concerns
Long-term after-sales service and partnership commitment
FAQ
Q1: What standards do your A53 Structural Steel Pipes meet?
A1: All pipes strictly comply with ASTM A53 / ASME SA53 standards and can be supplied with international certifications.
Q2: Do you provide inspection reports?
A2: Yes, MTC and third-party inspection (SGS, BV, etc.) are available for every shipment.
Q3: Can I order customized dimensions?
A3: Absolutely. We provide tailored sizes, special lengths, and processing services according to customer requirements.
Q4: What is your minimum order quantity (MOQ)?
A4: We offer flexible MOQ; both trial orders and bulk purchases are welcome.
Q5: How fast can you deliver?
A5: Stock sizes can be shipped immediately. Customized orders are usually delivered within 15–30 days.
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