Alloy 904L Stainless Steel Plate

Alloy 904L Stainless Steel Plate

Alloy 904L Stainless Steel Plate Uniform Corrosion in pickling acid* at 25°C *Composition: 20% HNO3 + 4 HF. Uniform Corrosion in wet process phosphoric acid at 60°C Corrosion rates in fatty acid column for the distillation of tall oil at 253°C Chemical Analysis Weight % (all values are maximum...
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Product Details

Alloy 904L Stainless Steel Plate

ISO corrosion curves 0.1mm/year, in pure sulphuric acid. Typical threshold stresses determined using the drop evaporation test.


Uniform Corrosion in pickling acid* at 25°C

ALLOYCorrosion Rate, mm/year

316L

>6

904L

0.47

*Composition: 20% HNO3 + 4 HF.


Uniform Corrosion in wet process phosphoric acid at 60°C

ALLOYCorrosion Rate, mm/year

316L

>5

904L

1.2

Corrosion rates in fatty acid column for the distillation of tall oil at 253°C

ALLOYCorrosion Rate, mm/year

316L

0.88

317LMN

0.29

904L

0.056


Chemical Analysis

Weight % (all values are maximum unless a range is otherwise indicated)





Nickel

23.0 min.-28.0 max.

Silicon

1.00

Chromium

19.0 min.-23.0 max.

Phosphorus

0.045

Molybdenum

4.0 min.-5.0 max.

Sulfur

0.035

Copper

1.0-2.0 max.

Iron

Balance

Manganese

2.00




Physical Properties

Density

0.287 lbs/in3
7.95 g/cm3


Specific Heat

0.11 BTU/lb-°F (32 – 212°F)
450 J/kg-°K (0 – 100°C)


Modulus of Elasticity

28.0 x 106 psi
190 GPa

Thermal Conductivity 212°F (100°C)

6.8 BTU/Ft-hr°F
12.9 W/m-°K


Melting Range

2372 – 2534°F
1300 – 1390°C


Electrical Resistivity

33.5 Microhm-in at 68°C
95.2 Microhm-cm at 20°C


Mechanical Properties

Typical Values at 68°F (20°C) (minimum values, unless specified)


Yield Strength
0.2% Offset
Ultimate Tensile
Strength
Elongation
in 2 in.
Hardness
psi (min.)(MPa)psi (min.)(MPa)% (min.)(max.)
31,00022071,0004903670-90 Rockwell B


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