DIN 17174 TTSt35N TTSt35V 11MnNi53 13MnNi63: Circular Steel Pipe Seamless Precision Steel Tubes for Low Temperature Service
Material Specification
DIN 17174 is a standard that specifies the requirements for seamless precision steel tubes used in low-temperature applications. These tubes are designed to withstand extreme cold environments, making them ideal for industries such as oil and gas, chemical processing, and cryogenics. The materials covered under this standard include TTSt35N, TTSt35V, 11MnNi53, and 13MnNi63, each offering unique properties tailored for specific applications.
Chemical Composition
The chemical composition of these materials is crucial for ensuring their performance in low-temperature environments. Below is a table presenting the typical chemical composition for each material:
| Material | C (%) | Si (%) | Mn (%) | P (%) | S (%) | Ni (%) | Other Elements |
| TTSt35N | ≤0.20 | ≤0.35 | 0.80-1.20 | ≤0.025 | ≤0.025 | 0.40-0.70 | V: 0.02-0.10 |
| TTSt35V | ≤0.20 | ≤0.35 | 0.80-1.20 | ≤0.025 | ≤0.025 | 0.40-0.70 | V: 0.10-0.20 |
| 11MnNi53 | ≤0.18 | ≤0.35 | 1.10-1.50 | ≤0.025 | ≤0.025 | 0.50-0.80 | - |
| 13MnNi63 | ≤0.18 | ≤0.35 | 1.30-1.70 | ≤0.025 | ≤0.025 | 0.60-0.90 | - |
Mechanical Properties
The mechanical properties of these materials determine their suitability for low-temperature applications. The table below outlines the typical mechanical properties:
| Material | Yield Strength (MPa) | Tensile Strength (MPa) | Elongation (%) | Impact Energy (J) at -50°C |
| TTSt35N | ≥235 | 360-480 | ≥22 | ≥27 |
| TTSt35V | ≥235 | 360-480 | ≥22 | ≥27 |
| 11MnNi53 | ≥275 | 430-580 | ≥20 | ≥27 |
| 13MnNi63 | ≥275 | 430-580 | ≥20 | ≥27 |
Application
These seamless precision steel tubes are primarily used in applications where low-temperature toughness is critical. Common applications include:
- Oil and Gas Industry: Used in pipelines and processing equipment that operate in arctic or sub-zero environments.
- Chemical Processing: Suitable for transporting cryogenic fluids and gases.
- Cryogenics: Employed in the construction of storage tanks and transport vessels for liquefied gases.
- Power Generation: Utilized in heat exchangers and condensers where low-temperature performance is essential.
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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DIN 17174 St35 Circular Steel Pipe Seamless Precision Steel Tubes For Low Temperature Service Images
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