ASTM A908 304 Austenitic Stainless Steel Needle Tubing For Industry
Brand Name:TORICH
Certification:ISO,SGS,Other,ROHS
Model Number:ASTM A908
Minimum Order Quantity:1 Ton
Delivery Time:20-40days
Payment Terms:L/C, D/A, D/P, T/T, Western Union, MoneyGram
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ASTM A908 304 304L 316 316L Stainless Steel Tube: Austenitic Stainless Steel Needle Tubing for Industry
Austenitic stainless steel needle tubing is widely used in various industrial applications due to its excellent corrosion resistance, high strength, and good formability. The ASTM A908 specification covers the requirements for stainless steel tubes made from grades 304, 304L, 316, and 316L. This article delves into the material specifications, key features, chemical composition, mechanical properties, steel grades, applications, and possible alternative grades.
Material Specification
The ASTM A908 standard specifies the requirements for austenitic stainless steel needle tubing, which is characterized by its high-quality finish and precise dimensions. These tubes are often used in applications requiring high cleanliness and resistance to corrosion.
Key Features
- Corrosion Resistance: Excellent resistance to a wide range of corrosive environments.
- High Strength: Suitable for high-pressure applications.
- Good Fabricability: Easily fabricated and welded.
- Versatile Applications: Used in various industries including medical, pharmaceutical, and food processing.
Chemical Composition
The following table presents the chemical composition of the stainless steel grades covered under ASTM A908:
| Grade | Carbon (C) | Manganese (Mn) | Phosphorus (P) | Sulfur (S) | Chromium (Cr) | Nickel (Ni) | Molybdenum (Mo) |
|---|---|---|---|---|---|---|---|
| 304 | ≤ 0.08% | 2.00% max | 0.045% max | 0.030% max | 18.0-20.0% | 8.0-10.5% | - |
| 304L | ≤ 0.03% | 2.00% max | 0.045% max | 0.030% max | 18.0-20.0% | 8.0-12.0% | - |
| 316 | ≤ 0.08% | 2.00% max | 0.045% max | 0.030% max | 16.0-18.0% | 10.0-14.0% | 2.0-3.0% |
| 316L | ≤ 0.03% | 2.00% max | 0.045% max | 0.030% max | 16.0-18.0% | 10.0-14.0% | 2.0-3.0% |
Mechanical Properties
The following table outlines the mechanical properties of the stainless steel grades specified in ASTM A908:
| Grade | Yield Strength (MPa) | Tensile Strength (MPa) | Elongation (%) | Hardness (Rockwell B) |
|---|---|---|---|---|
| 304 | 215 | 505-720 | 40 | 70-90 |
| 304L | 200 | 485-620 | 40 | 70-90 |
| 316 | 290 | 580-720 | 40 | 70-90 |
| 316L | 220 | 480-620 | 40 | 70-90 |
Steel Grade
The primary steel grades covered under ASTM A908 are:
- 304: General-purpose stainless steel with good corrosion resistance.
- 304L: Low carbon version of 304, offering improved weldability.
- 316: Enhanced corrosion resistance, especially against chlorides.
- 316L: Low carbon version of 316, suitable for welding applications.
Application
Austenitic stainless steel needle tubing is used in various applications, including:
- Medical Devices: Catheters, syringes, and other medical instruments.
- Pharmaceutical Industry: Equipment for drug manufacturing and delivery.
- Food Processing: Tubing for food and beverage applications.
- Chemical Processing: Pipelines and fittings in corrosive environments.
Possible Alternative Grades
While ASTM A908 grades are widely used, there are alternative grades that may be considered based on specific application requirements:
- AISI 321: Offers better high-temperature resistance.
- AISI 310: Suitable for high-temperature applications due to its higher chromium and nickel content.
- AISI 2205: A duplex stainless steel that provides higher strength and better resistance to stress corrosion cracking.
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.
ASTM A908 304 Austenitic Stainless Steel Needle Tubing For Industry
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