ASTM A178 Grade A, Grade C, Grade D Welded Steel Tube ERW Carbon-Manganese Steel Tube for Boiler and Superheater
Material
ASTM A178 is a specification for electric-resistance-welded (ERW) carbon-manganese steel tubes. These tubes are primarily used in the manufacturing of boiler and superheater components. The material is designed to withstand high temperatures and pressures, making it suitable for various industrial applications.
Specification
The ASTM A178 specification covers two grades of welded steel tubes: Grade A, Grade C, and Grade D. Each grade has specific requirements regarding mechanical properties and chemical composition.
Key Features
- High Strength: Designed to withstand high pressure and temperature.
- Weldability: Excellent weldability due to the carbon-manganese composition.
- Corrosion Resistance: Suitable for use in environments where corrosion is a concern.
- Versatility: Applicable in various industries, including power generation and manufacturing.
Chemical Composition
| Element | Grade A (%) | Grade C (%) | Grade D (%) |
| Carbon (C) | 0.06 - 0.18 | 0.06 - 0.18 | 0.06 - 0.18 |
| Manganese (Mn) | 0.30 - 0.90 | 0.30 - 0.90 | 0.30 - 0.90 |
| Phosphorus (P) | ≤ 0.035 | ≤ 0.035 | ≤ 0.035 |
| Sulfur (S) | ≤ 0.025 | ≤ 0.025 | ≤ 0.025 |
| Silicon (Si) | ≤ 0.40 | ≤ 0.40 | ≤ 0.40 |
Mechanical Properties
| Property | Grade A | Grade C | Grade D |
| Yield Strength (ksi) | 30 min | 35 min | 40 min |
| Tensile Strength (ksi) | 48 min | 50 min | 55 min |
| Elongation (%) | 30 min | 25 min | 20 min |
| Hardness (Rockwell B) | 80 max | 80 max | 80 max |
Steel Grade
- Grade A: Suitable for low-pressure applications.
- Grade C: Designed for moderate pressure applications.
- Grade D: Intended for high-pressure applications.
Application
ASTM A178 welded steel tubes are primarily used in:
- Boiler components
- Superheaters
- Heat exchangers
- Other high-temperature applications in power plants and industrial processes.
Possible Alternative Grades
- ASTM A53: A general-purpose steel pipe with similar applications.
- ASTM A106: Seamless carbon steel pipe for high-temperature service.
- ASTM A192: Seamless carbon steel boiler tubes for high-pressure applications.
TORICH Group, an one-stop service provider of raw materials engaged in raw material production, R&D and
trade, has 30+ years of experience in the market, exported to 56 +countries, and won good reputation and
credibility among domestic and foreign customers.
The company's production plant covers an area of over 10,000 square meters, with an annual production
capacity of 50,000 tons of materials and a comprehensive trading and warehousing capacity of 100,000 tons, which can satisfy customers' personalized needs for raw materials in terms of diversity and timeliness.
The group holds shares in more than ten domestic production entities, whose main products include
seamless steel pipes ( carbon steel and stainless steel), welded pipes ( carbon steel and stainless steel), pipe fittings ( carbon steel and stainless steel), titanium (titanium tubes, titanium rods, titanium cakes, titanium plates, etc.), aluminum (aluminum tubes, aluminum rods, aluminum die casting, aluminum casting, CNC machining), and CNC deep processing of metal materials such as tubes, rods, and casting parts.
Over the past 30 years, the company has been gradually developing new technologies and materials to meet
the growing needs of customers and various diversified needs, exporting to more than 56 countries and still
increasing the number of exporting countries, aiming to help customers to solve the demand for raw materials, and to facilitate one-stop purchasing for customers.
Q: Are you trading company or manufacturer ?
A: manufacturer,also can do trading.
Q: How long is your delivery time?
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.
Q: Do you provide samples? is it free or extra ?
A: Yes, we could offer the sample for free charge but need pay the cost of freight.
Q: What is your terms of payment ?
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.
|
|
ASTM A178 Grade A Welded Steel Tube ERW Carbon-Manganese Steel Tube For Boiler And Superheater Images
|
