Brand Name: Tiaco
Model Number: 0.3*1219*2438
Place of Origin: Tianjin, China (Mainland)
904l stainless steel plate/sheet
prime quality strict standard
SGS/TPI inspection
MTC/FORM E/CO/CIQ CERTIFICAT
SS steel sheet
stainless steel sheet Dimensions
Standard |
ASME, ASTM, EN ,BS,GB,DIN, JIS etc |
Grade |
201,202,304,304L,309S,310S,316,316L,316Ti,317L,321,347H,409,409L410,410S,420,430,904L,etc |
Thickness |
From 0.3mm to 100mm |
Width |
1000mm,1219mm,1250mm,1500mm,1800mm,2200mm 1000—6000 mm,as your requirement |
Length |
2000mm,2438mm,2500mm,6000mm,6096mm 1000—2000mm or as your requirement |
Surface Finish |
2B, BA, NO.1, NO.4, NO.8, HL |
904L stainless steel introduction and background
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.
904L Stsinless steel Chemical Composition:
|
%
|
Ni |
Cr
|
Mo
|
Cu
|
C
|
Mn
|
Si
|
P
|
S
|
904L
|
MIN
|
23.0
|
19.0
|
4.0
|
1.0
|
- | - | - | - | - |
MAX
|
28.0
|
23.0
|
5.0
|
2.0
|
0.02
|
2.0
|
1.0
|
0.045
|
0.035
|
Mechanical properties of 904L grade stainless steels.
Grade |
Tensile Strength (MPa) min |
Yield Strength 0.2% Proof (MPa) min |
Elongation (% in 50mm) min |
Hardness |
|
Rockwell B (HR B) |
Brinell (HB) |
||||
904L |
490 |
220 |
35 |
70-90 typical |
- |
Rockwell Hardness value range is typical only; other values are specified limits. |
Typical physical properties for 904L grade stainless steels.
Grade |
Density |
Elastic Modulus |
Mean Co-eff of Thermal Expansion (µm/m/°C) |
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 |
8000 |
200 |
15 |
- |
- |
13 |
- |
500 |
850 |
Possible Alternative Grades
Possible alternative grades to 904L stainless steel.
Grade |
Why it might be chosen instead of 904L |
316L |
A lower cost alternative, but with much lower corrosion resistance. |
6Mo |
A higher resistance to pitting and crevice corrosion resistance is needed. |
2205 |
A very similar corrosion resistance, with the 2205 having higher mechanical strength, and at a lower cost to 904L. (2205 not suitable for temperatures above 300°C.) |
Super duplex |
Higher corrosion resistance is needed, together with a higher strength than 904L. |
Applications
• Processing plant for sulphuric, phosphoric and acetic acids
• Pulp and paper processing
• Components in gas scrubbing plants
• Seawater cooling equipment
• Oil refinery components
• Wires in electrostatic precipitators
Standard |
Chemical Composition |
|||||||
ASTM A240 |
DIN |
EN 10088-2 |
JIS4305 |
C% Max |
Si% Max |
Mn% Max |
Cr% |
Ni% |
201 |
|
|
SUS201 |
0.15 |
1.00 |
7.50 |
16.00-18.00 |
3.50-5.50 |
202 |
|
|
SUS202 |
0.15 |
1.00 |
10.00 |
17.00-19.00 |
4.00-6.00 |
304 |
1.4301 |
X5CrNi18-10 |
SUS304 |
0.08 |
1.00 |
2.00 |
18.00-20.00 |
8.00-10.50 |
304L |
1.4306 |
X2CrNi19-11 |
SUS304L |
0.03 |
1.00 |
2.00 |
18.00-20.00 |
8.00-12.00 |
309S |
1.4833 |
X12CrNi23-13 |
SUS309S |
0.08 |
1.00 |
2.00 |
22.00-24.00 |
12.00-15.00 |
310S |
1.4845 |
X8CrNi25-21 |
SUS310S |
0.08 |
1.00 |
2.00 |
24.00-26.00 |
19.00-22.00 |
316 |
1.4401 |
X5CrNiMo17-12-2 |
SUS316 |
0.08 |
1.00 |
2.00 |
16.00-18.00 |
10.00-14.00 |
316L |
1.4435 |
X2CrNiMo17-12-2 |
SUS316L |
0.03 |
1.00 |
2.00 |
16.50-18.50 |
10.00-14.00 |
317 |
1.4449 |
|
SUS317 |
0.08 |
1.00 |
2.00 |
18.00-20.00 |
11.00-15.00 |
317L |
1.4438 |
X2CrNiMo18-15-4 |
SUS317L |
0.03 |
1.00 |
2.00 |
18.00-20.00 |
11.00-15.00 |
321 |
1.4541 |
X6CrNiTi18-10 |
SUS321 |
0.08 |
1.00 |
2.00 |
17.00-19.00 |
9.00-12.00 |
347 |
1.4550 |
X6CrNiNb18-10 |
SUS347 |
0.08 |
1.00 |
2.00 |
17.00-19.00 |
9.00-12.00 |
410 |
1.4006 |
X12Cr13 |
SUS410 |
0.15 |
1.00 |
1.00 |
11.50-13.50 |
(≤0.75) |
420 |
1.4021 |
X20Cr13 |
SUS420J1 |
0.16-0.25 |
1.00 |
1.00 |
12.00-14.00 |
|
430 |
1.4016 |
X6Cr17 |
SUS430 |
0.12 |
1.00 |
1.00 |
16.00-18.00 |
|