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ASTM A178 ERW Welded Steel Tube Supplier – Boiler & Superheater Service
Product Spotlights
ASTM A178 / ASME SA178 covers ERW carbon steel tubes for boilers, boiler flues, superheater flues, and safe ends. Heat treated after welding for weld integrity. Cost-effective alternative to seamless. OD:6~256mm, WT: 1~18mm
Grades: Grade A (Low Carbon) | Grade C (Medium Carbon)
Grades: Grade A (Low Carbon) | Grade C (Medium Carbon)
Negotiable
MOQ: 1 Metric Ton (Price negotiable depending on order volume and customization)
Key Specifications
Get Latest Price
Type:
Welded
Warranty:
1Y
Technique:
ERW
Payment & Shipping
Payment Methods:
Port of Shipment:
Shanghai
Delivery Detail:
30 days
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Type
Welded
Warranty
1Y
Technique
ERW
Surface Treatment
Polished
Usage
Pipeline Transport, Boiler Pipe, Hydraulic/Automobile Pipe, Oil/Gas Drilling, Food/Beverage/Dairy Products, Machinery Industry, Chemical Industry, Mining, Construction & Decoration, Special Purpose, Other
Material
Carbon Steel
After-sales Service
Y
Section Shape
Square
Transport Package
Hexagonal or square bundles
Specification
6~256MM
Trademark
N/A
Origin
CHINA
ASTM A178 ERW Welded Steel Tube Supplier – Boiler & Superheater Service
Product Overview
ASTM A178 / ASME SA178 covers electric-resistance-welded (ERW) carbon steel tubes for boilers, boiler flues, superheater flues, and safe ends. Heat treated after welding for weld integrity. Cost-effective alternative to seamless.
Grades: Grade A (Low Carbon) | Grade C (Medium Carbon) | Grade D (Carbon-Manganese)
✅ 100% hydrostatic or NDT tested
✅ EN 10204 Type 3.1 MTC provided
✅ Factory direct | ERW specialist
Key Specifications
| Parameter | Details |
|---|---|
| Standard | ASTM A178 / ASME SA178 |
| Type | ERW (Electric-Resistance-Welded) |
| Grades | A, C, D |
| OD Range | 1/4″ – 10″ (6mm – 256mm) |
| WT Range | 0.035″ – 0.72″ (1mm – 18mm) |
| Length | 3m – 12m |
| Surface | Black / Bare / Oiled |
Chemical Composition
| Element | Grade A | Grade C | Grade D |
|---|---|---|---|
| Carbon (C) | 0.06-0.18% | ≤0.35% | ≤0.27% |
| Manganese (Mn) | 0.27-0.63% | ≤0.80% | 1.00-1.50% |
| Phosphorus (P) | ≤0.035% | ≤0.035% | ≤0.030% |
| Sulfur (S) | ≤0.040% | ≤0.035% | ≤0.015% |
Mechanical Properties
| Grade | Tensile (MPa) | Yield (MPa) | Elongation |
|---|---|---|---|
| Grade C | ≥415 | ≥255 | ≥30% |
| Grade D | ≥485 | ≥275 | ≥30% |
Key Advantages
| Feature | Benefit |
|---|---|
| ERW manufacturing | Lower cost than seamless |
| Heat treated after welding | Uniform properties |
| Multiple grades | Choose strength level |
| 100% tested | Guaranteed integrity |
Applications
Boiler tubes & flues
Superheater flues
Safe ends
Industrial steam boilers
Grade Selection Guide
| Grade | Best For |
|---|---|
| A | General boiler service |
| C | High-temperature boilers |
| D | Demanding superheater service |
Quality Testing
| Test | Coverage |
|---|---|
| Hydrostatic | 100% |
| NDT (Eddy Current/UT) | 100% |
| Flattening | Per batch |
| Tensile (C&D) | Per batch |
Contact
📧 yjhtrade@gmail.com | 📞 +86 15106174543 | 🌐
Send Inquiry to This Supplier
1Yr
Business Type
Trading Company
Year Established
2021
Factory Size
50,000-100,000 square meters
Annual Export Value
Below US$1 Million
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