Introduction

904L is a non-stabilised low carbon high alloy austenitic stainless steel. The addition of copper to this grade gives it greatly improved resistance to strong reducing acids, particularly sulphuric acid. It is also highly resistant to chloride attack – both pitting / crevice corrosion and stress corrosion cracking.

This grade is non-magnetic in all conditions and has excellent weldability and formability. The austenitic structure also gives this grade excellent toughness, even down to cryogenic temperatures.

904L does have very substantial contents of the high cost ingredients nickel and molybdenum. Many of the applications in which this grade has previously performed well can now be fulfilled at lower cost by duplex stainless steel 2205 (S31803 or S32205), so it is used less commonly than in the past.

Key Properties

These properties are specified for flat rolled product (plate, sheet and coil) in ASTM B625. Similar but not necessarily identical properties are specified for other products such as pipe, tube and bar in their respective specifications.

1. Production standards: ASTM A269/A249,  standard
2. 2. Commonly used stainless steel material TP304, TP316 , 201,202,310S, 321 ,2205 825 625

3. Size range: diameter 3MM-25.4MM 

4. Wall thicknesses: 0.3MM-2.0MM 

5.General delivery pipe status: half hard / soft bright annealing

6.The tolerance range: diameter: + 0.1mm, wall thickness: + 10%, length: -0/+6mm

7.Annual output: 600 tons

8.Coil inner hole size: 500MM-1500MM (can be adjusted according to customer requirements) 

9. Coil height: 200MM-400MM (can be adjusted according to customer requirements) 

10. General delivery length: 200 m -1000 M 

11.Length:300-2000M or more than 2000M

12. Main application and field of use: refrigeration equipment, evaporator, gas liquid delivery, condenser, beverage machine.

★Commonly Size of stainless steel coiled tube: we can product them as your request.

Composition

Table 1. Composition ranges for 904L grade of stainless steels.

Mechanical Properties

Table 2. Mechanical properties of 904L grade stainless steels.

Physical Properties

Table 3. Typical physical properties for 904L grade stainless steels.

Grade Specification Comparison

▼Our advantages:

We are a stainless steel coiled tube/pipe manufacturer.

We can control the quality of pipe by ourselves.

The length of the pipes  is more than 3500M/Coil.

★Stainless steel coiled tubes /coiled tubing application:

• Food & Beverage Industry
• Petrochemical
• CNG Piping Jobs
• Boilers
• Desalination Plants
• Geothermal Plants
• Heat Exchangers
• Instrumentation Jobs
• Mechanical Jobs
• Oil and Gas Equipments and Piping Works

★Stainless steel coiled tubes /coiled tubing other garde:

l Stainless Steel 304 Coiled Tubes/ Coil Tubing

l Stainless Steel 304L Coiled Tubes/ Coil Tubing

l Stainless Steel 304H Coiled Tubes/ Coil Tubing

l Stainless Steel 316 Coiled Tubes/ Coil Tubing

l Stainless Steel 316L Coiled Tubes/ Coil Tubing

l Stainless Steel 316H Coiled Tubes/ Coil Tubing

l Stainless Steel 317L Coiled Tubes/ Coil Tubing

l Stainless Steel 321 Coiled Tubes/ Coil Tubing

l Stainless Steel 347 Coiled Tubes/ Coil Tubing

l Stainless Steel 410 Coiled Tubes/ Coil Tubing

l Stainless Steel 904L Coiled Tubes/ Coil Tubing

l Stainless Steel 310S Coiled Tubes/ Coil Tubing

l Stainless Steel 310 Coiled Tubes/ Coil Tubing

l Stainless Steel 310H Coiled Tubes/ Coil Tubing

l Stainless Steel 316Ti Coiled Tubes/ Coil Tubing

l Stainless Steel 321H Coiled Tubes/ Coil Tubing

l Stainless Steel 347 Coiled Tubes/ Coil Tubing

l Stainless Steel 347H Coiled Tubes/ Coil Tubing

★Seamless coiled tubing is a no. 1 choice in most of the critical applications as there is no risk of impurities that are often associated with welded coiled tubing.

u Made available in custom lengths

u Improved system safety and reliability

u Greater corrosion resistance

u Reduces the use of fittings, preventing the possibilities of leaks and other long-term failures

u Reduced installation costs – installation involves less time and efforts

steel coil has ten years of history, has two production lines can produce continuous welded pipe, equipment is perfect, the technology leader. But the company introduced the world first-class bright annealing technology, can online stainless steel pipe softening treatment. In addition, we also have compressed, flaring, bending test, hardness 100%, stretch, air tightness test and so on, the price is reasonable, quality is reliable, the current US 80% coil export to all over the world.