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ASME SB677 N08904 TP904L 1.4539 Austenitic SMLS Pipe Corrosive Service
What is TP904L?
904L is a highly alloyed, low carbon containing, non-stabilized austenitic stainless steel grade. Copper has been added to the alloy of 904L Stainless Steel Pipe. Hence, its resistance to strong reducing acids such as sulfuric acid is very high.
We focus in manufacturing special size and custom shape products for our clients.
1. Commodity: Seamless Stainless Steel Pipe ASTM B677 UNS N08904(904L)
2. Process method: Cold drawn/cold rolled
3. Surface finish: Anneal/pickling/manual polish/ mechanical polish
4. Material: UNS N08904/904L
5. Standards: ASTM B677
6. Size:
A) NPS: 1/8" to 8"
B) Schedule: 5/5S, 10/10S, 20/20S, 40/40S, 80/80S, 120/120S, 160/160S, acc. To ANSI B36.19
C) O. D.: 6 mm to 219 mm
D) W. T.: 0.5 mm to 25 mm
E) Length: Max. 20 meters
7. Delivery conditions: Annealled, Picklinged and Polished
8. packing: Seaworthy wooden cases/steel framed plywood cases/simple packaging
Chemical Composition of TP904L
| Grade | C | Mn | Si | P | S | Cr | Mo | Ni | Cu | |
| 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 |
Physical Properties of TP904L
Grade | Density (kg/m3) | Elastic Modulus (GPa) | Mean Co-eff of Thermal Expansion (m/m/C) | Thermal Conductivity (W/m.K) | Specific Heat 0-100C (J/kg.K) | Elec Resistivity (n.m) | |||
| 0-100C | 0-315C | 0-538C | At 20C | At 500C | |||||
| 904L | 8000 | 200 | 15 | - | - | 13 | - | 500 | 850 |
Mechanical Properties of TP904L
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 | - |
904L Stainless Steel Pipe Pressure Rating
| TEMPERATURE | COMPARISON TO OTHER HIGH TEMPERATURE PIPE | ||||
|---|---|---|---|---|---|
| °F | °C | ALLOY 254 | UNS C69100 TEMPER TF00 | TYPE 904L | ALLOY 825 |
| 200 | 93 | 0.88 | 1.00 | 0.82 | 1.00 |
| 300 | 149 | 0.79 | 1.00 | 0.74 | 0.95 |
| 400 | 204 | 0.73 | 0.96 | 0.68 | 0.90 |
| 500 | 260 | 0.69 | 0.63 | 0.87 | |
| 600 | 315 | 0.66 | 0.58 | 0.84 | |
| 700 | 371 | 0.64 | 0.56 | 0.81 | |
| 800 | 426 | 0.79 | |||
Equivalent Material of TP904L Stainless Steel
| Grade | UNS No | Old British | Euronorm | Swedish SS | Japanese JIS | ||
| BS | En | No | Name | ||||
| 904L | N08904 | 904S13 | X1NiCrMoCu25-20-5 | 1.4539 | – | – | SUS 890L |
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
