TORICH INTERNATIONAL LIMITED
| Payment Terms | L/C, D/A, D/P, T/T, Western Union, MoneyGram |
| Supply Ability | 60000 Ton/Tons per Year |
| Delivery Time | 20-40days |
| Packaging Details | In bundles or in wooden boxes. |
| Section shape | Round,Square,Rectangular,Round/Square/Rectangular/Oval.etc |
| Secondary or not | Non-secondary |
| Technique | ERW,Hot Rolled,Cold Rolled |
| Thickness | 0.4 - 50 mm |
| Application | Superheater |
| Surface treatment | Galvanized |
| Alloy or not | Is Alloy |
| Standard | ASTM |
| Grade | Grade A Grade B Grade C |
| Standard2 | ASTM A178 |
| Special pipe | precision tube |
| Length | 1-12m/as customers' requests |
| Surface | Galvanized Coated |
| Outer diameter(round) | 20 - 677 mm |
| Product name | Galvanized Square Steel Pipe/Tube,ERW steel pipes |
| Brand Name | TORICH |
| Model Number | ASTM A178 |
| Certification | ISO 9001 ISO14001 TS16949 |
| Place of Origin | Zhejiang/China |
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Product Specification
| Payment Terms | L/C, D/A, D/P, T/T, Western Union, MoneyGram | Supply Ability | 60000 Ton/Tons per Year |
| Delivery Time | 20-40days | Packaging Details | In bundles or in wooden boxes. |
| Section shape | Round,Square,Rectangular,Round/Square/Rectangular/Oval.etc | Secondary or not | Non-secondary |
| Technique | ERW,Hot Rolled,Cold Rolled | Thickness | 0.4 - 50 mm |
| Application | Superheater | Surface treatment | Galvanized |
| Alloy or not | Is Alloy | Standard | ASTM |
| Grade | Grade A Grade B Grade C | Standard2 | ASTM A178 |
| Special pipe | precision tube | Length | 1-12m/as customers' requests |
| Surface | Galvanized Coated | Outer diameter(round) | 20 - 677 mm |
| Product name | Galvanized Square Steel Pipe/Tube,ERW steel pipes | Brand Name | TORICH |
| Model Number | ASTM A178 | Certification | ISO 9001 ISO14001 TS16949 |
| Place of Origin | Zhejiang/China | ||
| High Light | Superheater Precision Steel Tube ，ERW Carbon Manganese Precision Steel Tube ，ASTM A178 Grade C Superheater Tubes | ||
Superheater tubes are critical components in power plants and industrial boilers, designed to withstand high temperatures and pressures. ASTM A178 is a standard specification for electric-resistance-welded (ERW) carbon-manganese steel tubes, specifically intended for use in boiler and superheater systems. This article delves into the material specifications, key features, chemical composition, mechanical properties, steel grades, applications, and possible alternative grades for ASTM A178 Grade A, Grade B, and Grade C superheater tubes.
ASTM A178 specifies the requirements for ERW carbon-manganese steel tubes used in high-temperature applications. These tubes are manufactured using a precision welding process to ensure uniformity and strength. The standard covers three grades: A, B, and C, each with distinct chemical and mechanical properties tailored to specific applications.
The chemical composition of ASTM A178 tubes varies by grade, as shown in the table below:
| Element | Grade A (%) | Grade B (%) | Grade C (%) |
|---|---|---|---|
| Carbon | 0.06 - 0.18 | 0.19 - 0.27 | 0.27 - 0.35 |
| Manganese | 0.27 - 0.63 | 0.82 - 1.06 | 1.06 - 1.35 |
| Phosphorus (max) | 0.035 | 0.035 | 0.035 |
| Sulfur (max) | 0.035 | 0.035 | 0.035 |
The mechanical properties of ASTM A178 tubes are critical for ensuring performance under operational stresses. The table below outlines the properties for each grade:
| Property | Grade A | Grade B | Grade C |
|---|---|---|---|
| Tensile Strength (min, MPa) | 310 | 415 | 485 |
| Yield Strength (min, MPa) | 180 | 240 | 275 |
| Elongation (min, %) | 35 | 30 | 30 |
ASTM A178 covers three grades of steel, each designed for specific applications:
ASTM A178 superheater tubes are widely used in:
While ASTM A178 is a popular choice, alternative grades may be considered based on specific requirements:
A: manufacturer,also can do trading.
A: Generally speaking,it is 10-15 days if the goods are in stock,or it is 30-40 days if the goods are not in stock, it is according to quantity.
A: Yes, we could offer the sample for free charge but need pay the cost of freight.
A: Payment<=2000USD, 100% in advance. Payment>=2000USD, 30% T/T in advance ,balance before shippment.
If you have another question, pls feel free to contact with me.
Company Details
Business Type:
Manufacturer,Distributor/Wholesaler,Importer,Exporter,Trading Company,Seller
Year Established:
1997
Total Annual:
25000000-30000000
Employee Number:
100~200
Ecer Certification：
Verified Supplier
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