20 - Grade Seamless Steel Pipe/Tube Circulating Water Pipeline

• Customization: Available
• After-sales Service: as Per Client′s Design
• Warranty: 1 Years
• Model NO.: 20 - Grade Seamless Steel Pipe/Tube Water Pipe
• Type: Seamless
• Technique: Cold Drawn
• Material: Sch5s - Schxxs(1mm - 150mm)
• Surface Treatment: Black
• Usage: Pipeline Transport, Hydraulic/Automobile Pipe, Oil/Gas Drilling, Machinery Industry, Chemical Industry, Mining, Construction & Decoration, Heat Transfer
• Section Shape: Round
• Standard: Carbon Steel
• Steel Grade: 20 - Grade
• Process: Black Paint
• Condition: Hot Finished/Cold Finished
• End: Plain End/Bevel End
• Test: BV, SGS Is Available
• Stock: Size Can Customized
• Processing: Customized
• Thickness: 1-150mm
• Used: Factory, Decoration, Food
• Packing: Standard Export Packing
• Size: 1/4"-4"
• Name: Hfw ERW Welded Tube
• Length: as Per Client′s Design
• Delivery Time: 10-30 Working Days
• Transport Package: Woven Bag/Wooden Case
• Specification: SCH 5S-SCH160
• Trademark: EZS
• Origin: China
• Production Capacity: 10000 Ton/Year

Product Description

Product Description

 

1. Standard & Material Overview

• Standard Compliance: ASTM A106/A53 (equivalent to GB/T 8163 in China).

• Material Grade: 20-Grade (C: 0.17-0.23%, Mn: 0.35-0.65%, Si: 0.17-0.37%).

• Key Feature: Balanced carbon content ensures excellent weldability, machinability, and moderate strength for general-purpose fluid transport.

 

2. Key Properties

Property	Technical Specifications
Mechanical Strength	Tensile strength: ≥410 MPa Yield strength: ≥245 MPa Elongation: ≥25% (ideal for forming).
Temperature Range	Suitable for service from -29°C to 425°C, covering most industrial and construction needs.
Corrosion Resistance	Moderate resistance to water, steam, and non-corrosive oils/gases. Coatings (e.g., galvanizing) enhance durability.
Workability	Easily welded, bent, and machined without preheating. Compatible with common joining methods.

 

3. Applications

Oil & Gas: Transporting crude oil, natural gas, and refined products.
Boiler Systems: Low/medium-pressure steam and hot water pipelines.
Structural Use: Scaffolding, machinery parts, and hydraulic systems.
General Plumbing: Water supply, HVAC, and compressed air systems.

 

4. Manufacturing Process

• Hot Rolling: Pipes formed from billets via rotary piercing and elongation for seamless integrity.

• Heat Treatment: Normalized to refine grain structure and improve mechanical properties.

• Testing: Hydrostatic testing (per ASTM A530), ultrasonic inspection, and dimensional checks.

 

5. Competitive Advantages

• Cost-Efficiency: Lower material cost compared to alloy/high-grade steels.

• Versatility: Adaptable to diverse environments with coatings (epoxy, galvanizing).

• Compliance: Meets ASME B36.10M, EN 10216, and other international standards.

• Availability: Wide range of sizes (1/8" to 24" OD, SCH 10-160).

 

6. Market Positioning

• Target Industries: Petrochemical plants, construction, utilities, and manufacturing.

• Key Selling Points:

  • Reliable performance in medium-pressure systems at competitive pricing.

  • Proven use in infrastructure projects (e.g., municipal water networks, industrial piping).

 

7. Purchasing Guidance

• Certifications: Ensure Mill Test Certificates (MTC) include chemical/mechanical test results.

• Surface Treatment: Specify coatings for corrosive environments (e.g., 3PE, galvanizing).

• Lead Time: Opt for suppliers with in-house rolling mills for faster turnaround.

 

Detailed Photos