Durable Carbon Steel Pipe Solutions | ST37/ST52 Industrial-Grade Performance

Product Overview

Our carbon steel pipe solutions are engineered for extreme durability and reliability in demanding industrial environments. Designed to meet carbon steel pipe dimensions and carbon steel pipe schedule chart specifications, these pipes excel in applications requiring high mechanical strength, corrosion resistance, and seamless integration with carbon steel pipe fittings. Ideal for oil/gas pipelines, structural frameworks, and hydraulic systems, our ST37/ST52-grade pipes outperform alternatives with precision manufacturing and compliance with global standards like DIN, ASTM, and API.

Technical Specifications

Key specifications are summarized below:

Mechanical Properties

Tensile Strength

Our carbon steel pipe achieves tensile strengths of 320–480 MPa for ST37 and 420–550 MPa for ST52 grades. This ensures exceptional resistance to deformation under high-pressure conditions, making it suitable for pipelines transporting hydrocarbons or pressurized fluids. The seamless design eliminates weld seams, reducing weak points and enhancing structural integrity.

Bend Strength

ST52-grade pipes exhibit bend strengths up to 360 MPa, with cold-rolled variants maintaining ±0.1mm dimensional tolerances for precision automotive and machinery components. The absence of internal stress cracks ensures longevity under cyclic loading, even in sub-zero environments down to -50°C for low-temperature applications.

Identification & Marking

Each pipe is laser-etched with:

• Material Grade (e.g., ST52, ASTM A53 Gr.B)
• OD/Wall Thickness (e.g., 100mm x 8mm)
• Standard Compliance (e.g., DIN 2448, API 5L)
• Heat Treatment Code (e.g., +QT for quenched & tempered).

Weight Calculation

Calculate pipe weight per meter using the formula:
$\text{Weight (kg/m)}=(OD-WT)\times WT\times 0.02466$
Example: For a 100mm OD pipe with 8mm wall thickness:
$(100-8)\times 8\times 0.02466=18.12\text{kg/m}$
This formula aligns with carbon steel pipe schedule chart guidelines and simplifies logistics planning.

Why Choose Our Carbon Steel Pipes?

1. Precision Engineering

Our cold-drawn and seamless processes ensure ±0.1mm tolerances, critical for hydraulic systems and high-pressure pipelines.

2. Corrosion Resistance

Advanced coatings like 3PE (fusion-bonded epoxy) extend service life to 50–100 years, even in chloride-rich environments.

3. Global Compliance

Certified to ASTM, API, and EN standards, validated by third-party inspections (SGS, BV).

4. Custom Solutions

Tailor dimensions, coatings, and delivery states (e.g., galvanized, normalized) to meet project-specific needs.

5. Sustainable & Cost-Effective

100% recyclable material with lower lifecycle costs compared to alloy or stainless steel alternatives.

Applications Beyond Industry

• Oil & Gas: API 5L-compliant pipes for high-pressure crude oil transport.
• Construction: Structural columns and scaffolding with load-bearing capacities up to 1,000 MPa.
• Water Systems: Galvanized pipes for corrosion-free municipal water supply.

Why Partner With Us?

1. Decades of Expertise: Since 2007, we’ve delivered 8,000+ tons annually, serving industries from automotive to aerospace.
2. R&D Innovation: Focused on high-precision tubes for extreme environments.
3. Global Logistics: CFR, CIF, and FOB delivery options with 10–30-day lead times.
4. Quality Assurance: ISO 9001 and API certifications guarantee performance.