A135 Structural Steel Pipe is a high-performance carbon steel pipe designed according to ASTM A135 standards, widely used for structural and mechanical applications. Produced by Jiangsu Cunrui Metal Products Co., Ltd., our pipes are available in seamless and welded forms, ensuring superior strength, durability, and long-term reliability.
The chemical composition and manufacturing process guarantee stable mechanical properties, excellent corrosion resistance, and consistent wear performance. Each pipe comes with mill test certificates, third-party inspection reports, and international certifications, offering buyers full confidence in quality and compliance.
Key Features & Advantages
International Standard Compliance: Fully meets ASTM A135 / ASME SA135 requirements.
High Mechanical Strength: Optimized yield and tensile strength suitable for demanding structural applications.
Excellent Durability: Resistant to wear, corrosion, and environmental impacts.
Quality Assurance: Every batch is tested and certified for chemical and mechanical properties.
Versatile Sizes: Wide range of diameters, thicknesses, and lengths with custom options available.
Applications
A135 Structural Steel Tube is ideal for:
Industrial construction and building frameworks
Bridges and infrastructure projects
Oil, gas, and water pipeline support structures
Mechanical engineering and fabrication
General structural applications in heavy industry
Customized solutions are available to ensure efficient, cost-effective, and long-lasting performance.
Product Specifications & Technical Data
Basic information
|
Parameter |
Specification (Typical Range) |
|
Standard |
ASTM A135 / ASME SA135 |
|
Type |
Seamless / Welded |
|
Grade |
Grade A / Grade B |
|
Outer Diameter (OD) |
21.3 mm – 610 mm |
|
Wall Thickness |
2.5 mm – 40 mm |
|
Length |
5.8 m / 6 m / 11.8 m / Custom |
|
Surface Treatment |
Black, Galvanized, Oiled, Painted |
|
Yield Strength |
≥ 200 MPa |
|
Tensile Strength |
320–440 MPa |
|
Hardness |
HB ≤ 187 |
|
Elongation |
≥ 25% |
|
Certification |
ISO, SGS, BV, CE, MTC |
Chemical Composition (Typical)
|
Element |
Max / Typical |
|
Carbon (C) |
0.25% |
|
Manganese (Mn) |
0.90–1.20% |
|
Phosphorus (P) |
0.05% |
|
Sulfur (S) |
0.05% |
|
Silicon (Si) |
0.10–0.35% |
Customization Services
Special diameters, wall thicknesses, and lengths
Cutting, bending, threading, drilling, and welding services
Custom surface treatments (galvanized, painted, coated)
Production based on drawings or project specifications
Flexible minimum order quantity (MOQ) for trial or bulk orders
Price & Delivery
Competitive pricing with bulk discounts
Standard sizes available from stock for fast shipment
Custom orders delivered within controlled lead times
Reliable logistics for timely delivery to global markets
Our Strength
Factory Scale: Modern production lines with advanced equipment
High Capacity: Monthly output over 5,000 tons
Export Expertise: Supplying to over 60 countries worldwide
Certifications: ISO 9001, SGS, BV, CE approvals
Technical Team: Professional engineers and QC experts ensuring consistent quality
Service & Support
Quick inquiry response within 12 hours
Technical consultation and material selection guidance
Seaworthy export-standard packaging
Clear return and replacement policy for quality issues
Long-term after-sales service and partnership support
FAQ
Q1: What standards do your A135 Structural Steel Pipes meet?
A1: All pipes fully comply with ASTM A135 / ASME SA135 standards and come with certifications.
Q2: Do you provide inspection reports?
A2: Yes, MTC and third-party inspection reports (SGS, BV, etc.) are available.
Q3: Can you supply customized dimensions?
A3: Absolutely. We provide flexible lengths, diameters, and wall thicknesses per customer requirements.
Q4: What is your MOQ?
A4: We offer flexible MOQ for both trial and bulk orders.
Q5: How fast is delivery?
A5: Stock sizes ship immediately. Custom orders are typically delivered within 15–30 days.
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