ASTM A209 T1 T1a T1b Alloy Steel Boiler Tube Seamless Carbon-Molybdenum Alloy-Steel Tube
Introduction
ASTM A209 specification covers seamless carbon-molybdenum alloy-steel boiler and superheater tubes such as grades T1, T1a, and T1b. These tubes are commonly utilized to withstand high-temperature services, primarily in the energy and petrochemical industries, due to their superior heat-resistant properties and high-temperature strength.
Material
ASTM A209 T1, T1a, and T1b tubes are seamless alloy steel tubes containing carbon and molybdenum as the primary alloying elements, ensuring adequate strength and durable performance under extreme temperatures and pressures encountered in boiler and superheater installations.
Specification
- Standard: ASTM A209
- Grades: T1, T1a, T1b
- Manufacturing Process: Seamless manufacturing method
- Heat Treatment: Tubes shall be heat-treated and normalized
Key Features
- Excellent heat-resistance capabilities
- Superior strength and hardness at high temperatures
- Resistance to corrosion and oxidation in elevated-temperature environments
- High level of dimensional accuracy and stability
- Smooth surface finish suitable for heat-transfer applications
- Good weldability and ease of forming and machining
Chemical Composition
| Grade | C (%) | Mn (%) | P (%) max | S (%) max | Si (%) | Mo (%) |
| T1 | 0.10–0.20 | 0.30–0.80 | 0.025 | 0.025 | 0.10–0.50 | 0.44–0.65 |
| T1a | 0.15–0.25 | 0.30–0.80 | 0.025 | 0.025 | 0.10–0.50 | 0.44–0.65 |
| T1b | 0.14 Max | 0.30–0.80 | 0.025 | 0.025 | 0.10–0.50 | 0.44–0.65 |
Mechanical Properties
| Grade | Tensile Strength (MPa) | Yield Strength (MPa) | Elongation (%) | Hardness (HRB) |
| T1 | ≥415 | ≥205 | ≥30 | ≤85 |
| T1a | ≥415 | ≥220 | ≥30 | ≤85 |
| T1b | ≥380 | ≥205 | ≥30 | ≤85 |
Similar Standards and Steel Grades
| ASTM | EN/DIN | GOST | JIS | GB |
| A209 T1 | 16Mo3(1.5415) | 12CrMo195(12ХМ) | STBA12(15Mo3) | 15MoG(15Mo) |
| A209 T1a | 15Mo3(1.5415) | 12CrMo195(12ХМ) | STBA12(15Mo3) | 15MoG(15Mo) |
| A209 T1b | 15Mo3(1.5415) | 12CrMo195(12ХМ) | STBA12(15Mo3) | 15MoG(15Mo) |
Application
ASTM A209 T1, T1a, and T1b seamless tubes are prominently used in high-temperature environments and high-pressure services. Typical applications include:
- Manufacture of boilers and superheaters in power plants
- Heat exchangers in petrochemical industries
- Steam pipelines and pressure vessels
- Heat-transfer equipment operating at elevated temperatures
- Components requiring excellent oxidation and heat-resistance properties in industries like oil, gas, chemicals, and power generation.
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.
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ASTM A209 Alloy Steel Boiler Tube Seamless Carbon- Molybdenum Alloy-Steel Tube Images
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