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Centerway steel specializes in the production of the stainless steel pipe and fittings, and large inventory of resources, Factory direct sales
Centerway steel specializes in the production of the stainless steel pipe and fittings, and large inventory of resources, Factory direct sales
AISI 904L is an austenitic stainless steel that offers a strong resistance to reducing acids such as Sulphuric acid aswell as a good resistance to crevice, pitting, intergranular and stress corrosion. 904L also offers both good weldability and formability with maximum service temperatures reaching 450°C.
Chemical Composition (Max %)
|
Grade |
Ni |
Cr |
Mo |
Cu |
C |
Mn |
Si |
P |
S |
Fe |
|
904L |
23 – 28 |
19 – 23 |
4 -5 |
1 – 2 |
0.02 |
2 |
1 |
0.045 |
0.035 |
Balance |
Mechanical Properties
|
Grade |
Tensile Strength, Min |
Yeild Strength, Min |
Elognation |
Hardness |
|
904L |
490 Mpa |
215 Mpa |
35% |
90 HRB Max |
Physical Properties
|
Grade |
Density |
Elastic Modulus |
Mean Co-Eff Of |
Thermal Conductivity |
Specific Heat 0-100°C |
Elec Resistivity |
|||
|
0-100°C |
0-315°C |
0-538°C |
At 20°C |
At 500°C |
|||||
|
904L |
7900 |
190 |
15 |
– |
– |
11.5 |
– |
500 |
952 |
Standards
ASTM A 312–seamless, welded, and heavily cold worked austenitic stainless steel pipes
ASTM B 673–uns n08904, uns n08925, and uns n08926 welded pipe
ASTM B 677–uns n08904, uns n08925, and uns n08926 seamless pipe and tube
ASTM A 213–seamless ferritic and austenitic alloy-steel boiler, super heater, and heat-exchanger tubes
ASTM A 249–welded austenitic steel boiler, super heater, heat-exchanger, and condenser tubes
ASTM A 269–seamless and welded austenitic stainless steel tubing for general service
ASTM B 674–uns n08904, uns n08925, and uns n08926 welded tube
ASTM B 677–uns n08904, uns n08925, and uns n08926 seamless pipe and tube
Applications
Petroleum and petrochemical equipment, for example: Reactor
Storage and transportation equipment of sulphuric acid, for example: heat exchanger
Sea water treatment equipment, sea water heat exchanger
Paper industry equipment, sulfuric acid, nitric acid equipment, making acid, pharmaceutical industry
Pressure vessel
Food equipment
