A213 TP904L Stainless Steel Seamless Pipe, high alloy austenitic pipe UNS N08904
Grade 904L stainless steel is a non-stabilized austenitic stainless steel with low carbon content. This high alloy stainless steel is added with copper to improve its resistance to strong reducing acids, such as sulphuric acid. The steel is also resistant to stress corrosion cracking and crevice corrosion. Grade 904L is non-magnetic, and offers excellent formability, toughness and weldability.
Grade 904L contains high amounts of expensive ingredients, such as molybdenum and nickel. Today, most of the applications that employ grade 904L are replaced by low-cost duplex stainless steel 2205.
Applications of :
Pulp and paper industry
Desalination plants
Flue-gas cleaning
Cargo tanks and pipe systems in chemical tankers
Seawater systems
Firewalls and blast walls on offshore platforms
Bridges
Components for structural design
Storage tanks
Pressure vessels
Heat exchangers
Water heaters
Rotors, impellers and shafts
Reinforcing bars for concrete structures
Composition
| Grade |
C |
Mn |
Si |
P |
S |
Cr |
Mo |
Ni |
Cu |
| 904L |
min.
max.
|
-
0.02
|
-
2
|
-
1
|
-
0.045
|
-
0.035
|
19
23
|
4
5
|
23
28
|
1
2
|
Mechanical Properties
| 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 |
36 |
70-90 typical |
150 |
Physical Properties
| Grade |
Density
(kg/m3) |
Elastic Modulus
(GPa) |
Mean Co-eff of Thermal Expansion (µm/m/°C) |
Thermal Conductivity
(W/m.K) |
Specific Heat 0-100°C
(J/kg.K) |
Elec Resistivity
(nΩ.m) |
| 0-100°C |
0-315°C |
0-538°C |
At 20°C |
At 500°C |
| 904L |
7900 |
190 |
15 |
- |
- |
11.5 |
- |
500 |
952 |
MINAL
DIAMETER NPS |
OUTSIDE
DIAMETER(MM) |
SCH-5S
WALL THICKNESS(MM) |
SCH-10S
WALL THICKNESS(MM) |
SSCH-40S
WALL THICKNESS(MM) |
| 1/4 |
13.72 |
|
1.65 |
2.24 |
| 3/8 |
17.15 |
|
1.65 |
2.31 |
| 1/2 |
21.34 |
1.65 |
2.11 |
2.77 |
| 3/4 |
26.67 |
1.65 |
2.11 |
2.87 |
| 1 |
33.40 |
1.65 |
2.77 |
3.38 |
| 1 1/4 |
42.16 |
1.65 |
2.77 |
3.56 |
| 1 1/2 |
48.26 |
1.65 |
2.77 |
3.68 |
| 2 |
60.3 |
1.65 |
2.77 |
3.91 |
| 2 1/2 |
73.03 |
2.11 |
3.05 |
5.16 |
| 3 |
88.90 |
2.11 |
3.05 |
5.49 |
| 3 1/2 |
101.60 |
2.11 |
3.05 |
5.74 |
| 4 |
114.30 |
2.11 |
3.05 |
6.02 |
| 5 |
141.30 |
2.77 |
3.40 |
6.55 |
| 6 |
168.28 |
2.77 |
3.40 |
7.11 |
| 8 |
219.08 |
2.77 |
3.76 |
8.18 |
| 10 |
273.05 |
3.40 |
4.19 |
9.27 |
| 12 |
323.85 |
3.96 |
4.57 |
9.53 |
| 14 |
355.60 |
3.96 |
4.78 |
9.53 |
| 16 |
406.40 |
4.19 |
4.78 |
9.53 |
| 18 |
457.20 |
4.19 |
4.78 |
9.53 |
| 20 |
508.00 |
4.78 |
5.54 |
9.53 |
| 22 |
558.80 |
4.78 |
5.54 |
|
| 24 |
609.60 |
5.54 |
6.35 |
9.53 |
| 30 |
762.00 |
6.35 |
7.92 |
|
|
32
|
80
|
812.8
|
2032.0
|
(Thickness):6.35~30mm
Nominal diameter and wall thickness subject to the approval of vendor and purchaser
|
