Stainless Steel Seamless Pipe ASTM B677 TP904L Chemical Aerospace Fabrication
ASTM B677 TP904L Stainless Steel Seamless Pipe Chemical Aerospace Fabrication
YUHONG GROUP deal with Austenitic Stainless Steel, Nickel Alloy Steel(Hastelloy , Monel, Inconel, Incoloy ) seamless and welded pipe and tube already more than 33 years, every year sell more than 80000 tons of steel pipe and tube. Our client already cover more than 70 countries, Like Italy, UK, Gernmany, USA, Canada, Chile, Colombia, Saudi Arabia, Korea, Singapore, Austrial, Poland, France ...
Chemical Composition of ASTM B677 TP904L
| 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 Strength of ASTM B677 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 | 36 | 70-90 typical | 150 |
Physical Properties of ASTM B677 TP904L
| Grade | UNS No | Old British | Euronorm | Swedish SS | Japanese JIS | ||
| BS | En | No | Name | ||||
| 904L | N08904 | 904S13 | - | 1.4539 | X1NiCrMoCuN25-20-5 | 2562 | - |
Overview
904L is a highly alloyed, low carbon content, unstable austenitic stainless steel grade. Copper has been added to the alloy of 904L stainless steel tubing. As a result, it is very resistant to strong reducing acids such as sulphuric acid. The lower carbon content makes it easier to produce AISI 904L welded tubes to ASTM A312 specifications. Despite the lower carbon content, these pipes can be used for high temperature applications. The addition of a significant amount of nickel to the ASME SA 312 TP904L alloy allows these tubes to perform well even in high temperature environments. As a non-magnetic alloy, stainless steel 904L pipes also exhibit good resistance to stress-related corrosion cracking. The presence of molybdenum in the alloy reduces the incidence of crevice corrosion. ASTM A312 TP904L is primarily used for general corrosion applications, except for use in moderate to high temperature applications.
Mechanical tests such as transverse or longitudinal tensile tests and flattening tests are performed on seamless 904L tubes to determine compliance with tensile properties. In accordance with ASTM A312, each 904L tube must be supplied under heat treatment conditions with appropriate heat treatment temperatures and rationale regarding cooling or testing.
Astm B622 C22 NO6022 Application
Electronic Industries
Chemical Industries
Soap Industries
Aerospace Industries
Food Industries
Caustic handling equipment
Fabrication Industries
Cement Industries
Sugar Industries
Power Plant
Steel Plant
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