12Cr9Mo Large Diameter Seamless Pipe: Alloy Structural Seamless Steel Pipe for Liquid Service
Material
12Cr9Mo is a high-performance alloy steel known for its excellent strength, toughness, and resistance to high temperatures and pressures. This makes it an ideal choice for large diameter seamless pipes used in demanding liquid service applications. The alloy's composition includes chromium and molybdenum, which enhance its corrosion resistance and mechanical properties.
Specification
The 12Cr9Mo seamless pipes are manufactured to meet stringent industry standards, ensuring reliability and durability in various applications. Key specifications include:
- Outer Diameter: Typically ranges from 21.3 mm to 610 mm.
- Wall Thickness: Varies from 2 mm to 60 mm.
- Length: Available in fixed lengths or random lengths, depending on customer requirements.
- Standards: Conforms to ASTM, ASME, and other relevant international standards.
Key Features
- High Temperature Resistance: Suitable for use in environments with elevated temperatures.
- Corrosion Resistance: Chromium and molybdenum content provide excellent resistance to oxidation and corrosion.
- Mechanical Strength: Offers superior tensile and yield strength.
- Versatility: Can be used in a wide range of industrial applications.
Chemical Composition
The chemical composition of 12Cr9Mo alloy is crucial for its performance characteristics. Below is a typical composition table:
| Element | Composition (%) |
| Carbon (C) | 0.08 - 0.12 |
| Silicon (Si) | 0.10 - 0.50 |
| Manganese (Mn) | 0.30 - 0.60 |
| Phosphorus (P) | ≤ 0.030 |
| Sulfur (S) | ≤ 0.030 |
| Chromium (Cr) | 8.00 - 10.00 |
| Molybdenum (Mo) | 0.90 - 1.10 |
Mechanical Properties
The mechanical properties of 12Cr9Mo alloy are designed to meet the demands of high-stress environments. The table below outlines these properties:
| Property | Value |
| Tensile Strength (MPa) | 540 - 690 |
| Yield Strength (MPa) | ≥ 415 |
| Elongation (%) | ≥ 20 |
| Impact Energy (J) | ≥ 27 (at room temperature) |
Steel Grade
12Cr9Mo is classified under alloy steel grades, specifically designed for high-temperature and high-pressure applications. It is often used in the manufacturing of boilers, pressure vessels, and heat exchangers.
Application
The 12Cr9Mo large diameter seamless pipes are widely used in industries such as:
- Petrochemical: For transporting high-temperature fluids and gases.
- Power Generation: In boilers and heat exchangers.
- Oil and Gas: For pipelines and processing equipment.
- Chemical Processing: In reactors and pressure vessels.
Possible Alternative Grades
While 12Cr9Mo is a preferred choice for many applications, alternative grades may be considered based on specific requirements:
- 10CrMo910: Offers similar properties with slight variations in composition.
- P91: Known for its enhanced creep strength and oxidation resistance.
- T91: Often used in high-temperature steam 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.
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