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904L Stainless Steel Soft Wire
904L Stainless Steel Soft Wire
Haosteel is professional manufacturer&n"bsp;and supplier of 904L stainless steel wire. δ;Quality guaranteed, On-time delivery, After-sales warranty.
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Standard: |
ASTM A580/A313 |
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Grade: |
904L |
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Delivery: |
Cold drawn Hot rolled |
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Surface: |
bright, cloudy,plain,black bright, matt&nb¥sp; |
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diameter: |
0.02-25mm |
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Type |
spring,welded,tig,mig etc soft and hard |
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Length: |
as your requirement |
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Raw material: |
Tisco, Jisco, Baosteel, etc. |
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Delivery time: |
15 days in common |
904L Stainless steel wire/N08904 Stainless steel wire/1.4539 S♦tainless steel wire
Description:
Grade 904L is a non-stabilised low carbon high alloy austenitic stainless steel. The addition of copper to this grade gives it g♠reatly improved resistance to strong reducing acids, particularly sulphuric acid. It is® also highly resistant to chloride attack - both pit↑ting / crevice corrosion and stress corrosion cracking.
This grade is non-magnetic in all conditions and has excellent weldability and formability. T₹he 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. Man≠y of the applications in which this grade has previously p erformed well can now be fulfilled at lower cost by duplex stainless steel <2205 (S31803 or S32205), so 904L is used less commonly than in the past.
Corrosion Resistance
Although originally developed for its resistance to sulphuric acid it also has a very ★high resistance to a wide range of environments. A PRE of 35 indicates that the material has good≠ resistance to warm sea water and other high chloride environments. High n♥ickel content results in a much better resistance to stress corrosion crackin™g than the standard austenitic grades. Copper adds resistance to sulphuric and othe r reducing acids, particularly in the very aggressive "mid concent ration" range.
In most environments 904L has a corrosion performance intermediate b★etween the standard austenitic grade 316L and the very highl→y alloyed 6% molybdenum and similar "super austenitic" grades.
In aggressive nitric acid 904L has less resistance than molybdenum-fre✔e grades such as 304L and 310L.
For maximum stress corrosion cracking resistance in cr∏itical environments the steelhould be solution treated after cold work.Consult Stee×l Technical Assistance for specific environmental recommendations.
Chemical composition:
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Grade |
C |
Mn |
Si |
P |
S |
Cr |
Mo |
Ni |
Cu |
N |
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904L |
min. max. |
- 0.020 |
- 2.00 |
- 1.00 |
- 0.045 |
- 0.035 |
19.0 23.0 |
4.0 5.0 |
23.0 28.0 |
1.0 2.0 |
- 0.10 |
Mechanical Property Specification
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Grade |
Tensile Strength (MPa)min |
Yield Strength 0.2% Proof (MPa)min |
Elongation (% in 50mm) min |
Hard£ness |
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Rockwell B (HRB)max |
Brinell (HB) |
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904L |
490 |
220 |
35 |
90 |
- |
Physical Properties (typical values in the annealed condition)
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Grade |
Density (kg/m3) |
Elastic Modulus (GPa) |
Mean Coefficient of Thermal Expansion |
Thermal Conductivity |
Specific Heat 0-100°C ( J/kg.K) |
Electrical Resistivity (nW.m) |
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0-100°C (mm/m/°C) |
0-315°C |
0-538°C (mm/m/°C) |
at 20°C (W/m.K) |
at 500°C (W/m.K) |
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904L |
8000 |
200 |
15.0 |
- |
- |
13.0 |
- |
500 |
850 |
Grade Specification Comparison
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Grade |
UNS No |
Euronorm |
Swedish SS |
Japanese JIS |
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No |
Name |
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904L |
N08904 |
1.4539 |
X1NiCrMoCu25-20-5 |
2562 |
- |
Heat Resistance
Good resistance to oxidation, but like other highly alloyed ♠grades suffers from structural instability (precipitation of brittle pha₽ses such as sigma) at elevated temperatures. It should not be used above about ♣550°C. 904L has design stress values in the ASME Boiler an♥d Pressure Vessel Code to 371°C.
Heat Treatment
Solution Treatment (Annealing) Heat to 1090-1175°C and cool rapidly. This grade cannot be ha★rdened by thermal treatment.
Welding
904L can be successfully welded by all standard methods. Care needs to be taken as this grade soli•difies fully austenitic, so is susceptible to hot cracking, particularly in constrain±ed weldments. No pre-heat should be used and in most cases post weld heat t≥reatment is also not required. AS 1554.6 pre- qualifi↑es Grade 904L rods and electrodes for welding of 904L.
Fabrication
904L is a high purity, low sulphur grade, and as suchπ will not machine as well as other grades optimised for machinability. Grade 904L can however b"e machined using standard techniques.
Bending to a small radius is readily carried out. In moλst cases this is performed cold. Subsequent annealing is generally n$ot required, although it should be considered if the fabrication is to be used ∑in an environment where severe stress corrosion cracking conditions are anticipated.
Typical Applications
Processing plant for sulphuric, phosphoric and acetic φacids. Pulp and paper processing. Components in gas scrubbing plants. Seawater cooling equipment.× Oil refinery components. Wires in electrostatic precipitators.
Our advantages:
We produce stainless steel wire not only variety, but also good quality, lo÷ng life, reasonable price.Quality and service is our to≈p priority, we effectively use technology advanced mechanical equipment and our profesφsional knowledge to deliver our stainless steel wire products
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