DIN 17172 StE 210.7 StE 240.7 StE 290.7 StE 320.7 StE 360.7 Gas Steel Pipe Low Alloy Long Distance For Flammable Gas Transportation
Introduction
DIN 17172 is a standard that specifies the requirements for low alloy steel pipes used in the transportation of flammable gases over long distances. The grades StE 210.7, StE 240.7, StE 290.7, StE 320.7, and StE 360.7 are designed to provide excellent mechanical properties and corrosion resistance, making them suitable for various applications in the gas industry.
Material Specification
The materials used in the production of these steel pipes must meet specific chemical and mechanical properties to ensure safety and reliability in gas transportation.
Key Features
- Low Alloy Composition: Enhances strength and toughness.
- High Weldability: Suitable for various welding techniques.
- Corrosion Resistance: Provides durability in harsh environments.
- High Strength: Capable of withstanding high pressures.
Chemical Composition
| Steel Grade | C (%) | Si (%) | Mn (%) | P (%) | S (%) | Cr (%) | Ni (%) | Mo (%) |
| StE 210.7 | 0.10 | 0.20 | 1.20 | 0.025 | 0.015 | 0.30 | 0.30 | 0.10 |
| StE 240.7 | 0.12 | 0.25 | 1.40 | 0.025 | 0.015 | 0.40 | 0.40 | 0.15 |
| StE 290.7 | 0.14 | 0.30 | 1.50 | 0.025 | 0.015 | 0.50 | 0.50 | 0.20 |
| StE 320.7 | 0.16 | 0.35 | 1.60 | 0.025 | 0.015 | 0.60 | 0.60 | 0.25 |
| StE 360.7 | 0.18 | 0.40 | 1.70 | 0.025 | 0.015 | 0.70 | 0.70 | 0.30 |
Mechanical Properties
| Steel Grade | Yield Strength (MPa) | Tensile Strength (MPa) | Elongation (%) | Impact Toughness (J) |
| StE 210.7 | 210 | 350 | 22 | 27 |
| StE 240.7 | 240 | 370 | 20 | 27 |
| StE 290.7 | 290 | 400 | 18 | 27 |
| StE 320.7 | 320 | 430 | 16 | 27 |
| StE 360.7 | 360 | 460 | 14 | 27 |
Steel Grade
The steel grades StE 210.7, StE 240.7, StE 290.7, StE 320.7, and StE 360.7 are categorized based on their yield strength and chemical composition, making them suitable for various applications in the gas transportation sector.
Application
These steel pipes are primarily used in:
- Natural Gas Transportation: Long-distance pipelines for natural gas.
- Flammable Gas Distribution: Infrastructure for distributing flammable gases.
- Industrial Applications: Used in various industries requiring safe gas transportation.
Possible Alternative Grades
While DIN 17172 grades are widely used, alternative grades may include:
- API 5L: Suitable for oil and gas pipelines.
- ASTM A106: Commonly used for high-temperature service.
- EN 10208: European standard for gas pipelines.
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.
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DIN 17172 StE 210.7 Gas Steel Pipe Low Alloy Long Distance For Flammable Gas Transportation Images
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