GOST 9940-81 Stainless Steel Tube Seamless Thermally Deformed Pipe For Corrosion Resistant
Product Details
Corrosion Resistant Stainless Steel Seamless Tube
,Deformed Stainless Steel Tube
,Seamless Thermally Deformed Pipe
GOST 9940-81 Stainless Steel Tube Seamless Thermally Deformed Pipe For Corrosion-Resistant Applications
Material and Specification
GOST 9940-81 is a standard that specifies the requirements for seamless thermally deformed stainless steel tubes used in corrosion-resistant applications. The material used in this standard is stainless steel, which is known for its exceptional resistance to corrosion, high strength, and durability.
The specification outlined in GOST 9940-81 covers various parameters such as dimensions, tolerances, surface condition, and mechanical properties of the stainless steel tubes. These specifications ensure that the tubes meet the necessary standards for their intended applications.
Key Features
The key features of GOST 9940-81 stainless steel tubes are as follows:
- Corrosion Resistance: The stainless steel tubes specified in GOST 9940-81 exhibit remarkable resistance to corrosion, making them suitable for use in harsh environments where corrosion is a concern.
- Seamless Construction: These tubes are manufactured using a seamless production process, which results in a smooth, continuous structure without any welded joints. This seamless construction enhances the integrity and strength of the tubes.
- High Strength: The stainless steel material used in GOST 9940-81 tubes provides excellent mechanical strength, allowing them to withstand high pressure and temperature conditions.
- Durability: Stainless steel is known for its durability and long service life. This characteristic ensures that the tubes remain intact and perform reliably over an extended period of time.
- Versatility: GOST 9940-81 stainless steel tubes are suitable for a wide range of applications, including but not limited to chemical processing plants, oil and gas industries, and water treatment facilities.
Chemical Composition
The chemical composition of GOST 9940-81 stainless steel tubes is specified in the following table:
| Element | Minimum (%) | Maximum (%) |
|---|---|---|
| Carbon (C) | - | 0.08 |
| Silicon (Si) | - | 0.80 |
| Manganese (Mn) | - | 2.00 |
| Chromium (Cr) | 23.00 | 28.00 |
| Nickel (Ni) | 11.00 | 14.00 |
| Phosphorus (P) | - | 0.035 |
| Sulfur (S) | - | 0.025 |
Please note that these values are subject to specific manufacturing tolerances.
Mechanical Properties
The mechanical properties of GOST 9940-81 stainless steel tubes are outlined in the following table:
| Property | Value |
|---|---|
| Yield Strength, Rp (MPa) | ≥ 205 |
| Tensile Strength, Rm (MPa) | ≥ 480 |
| Elongation, A (%) | ≥ 35 |
| Impact Toughness, KV (J/cm) | ≥ 70 at -70°C |
Steel Grade
GOST 9940-81 stainless steel tubes are available in various steel grades based on their chemical composition, such as:
- 12X18H10T
- 10X17H13M2T
- 08X18H10T
These steel grades determine the specific characteristics and performance of the stainless steel tubes.
Application
GOST 9940-81 stainless steel tubes find extensive use in corrosion-resistant applications. Some common application areas include:
- Chemical processing plants: These tubes are suitable for transporting corrosive chemicals and substances ely.
- Oil and gas industries: GOST 9940-81 tubes are used for oil and gas pipelines, offshore platforms, and equipment exposed to harsh environments.
- Water treatment facilities: The corrosion-resistant properties of these tubes make them ideal for water purification and wastewater treatment systems, where chemicals and corrosive substances are present.
Possible Alternative Grades
In addition to the mentioned steel grades, there are several alternative grades available in the market that offer similar corrosion resistance and mechanical properties. Some possible alternative grades to GOST 9940-81 stainless steel tubes include:
- AISI 316L
- ASTM A312 TP316
- DIN X5CrNiMo17-12-2
Consulting with industry experts and considering specific project requirements can help in determining the most suitable alternative grade for a particular application.
Haiyan Sanxin Steel Pipe Factory is a leading manufacturer of steel pipes in China. Located in a region with excellent geographical advantages, the factory is situated close to the Zhoushan Port and Ningbo Port.
Our factory covers an area of more than 25,000 square meters and has been in the steel pipe manufacturing business for 20 years. Over this period, we have accumulated a wealth of professional experience, which has helped us establish ourselves as a trusted name in the industry.
At our factory, we specialize in the production of various types of steel pipes, including stainless steel pipe, carbon steel pipe, copper pipe, steel pipe,seamless steel pipe and welded pipe. Our expertise in this field is evident from the 12 patents that we hold, which demonstrate our commitment to innovation and excellence.
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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