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Credibility ,ASME B16.9 ASTM A815 F51 Welded Lap Joint Stub End 14 Inch Schedule STD
ASME B16.11 ASTM A182 F321 Socket Welding Cap 2 Inch 3000LBS
ASME B16.5 ASTM B564 Alloy C22 WNRTJ Flange 4 Inch SCH80S CL1500
ASME B16.11 ASTM A182 GR.F316L Threaded Hex Head Plug 1 Inch CL3000
ASME B16.5 ASTM B564 UNS N06625 WNST Flange 6 Inch SCH40S CL900
ASME B36.19 ASTM A213 TP347 Seamless Pipe Cold Finished 168.3 x 4.2 x 8000MM
ASME B16.5 ASTM B564 Incoloy 825 WNRTJ Flange 3 Inch SCH40S CL900
ASME B16.9 ASTM B366 Nickel Alloy 200/201 Concentric Reducer 4 Inch - 1-1/2 Inch SCH80
MSS-SP43 (A) ASTM A815 UNS32750 SAF2507 Stub End 3 Inch SCH80S
ASME B16.5 ASTM B564 Hastelloy C276 Blind Flange RF 80NB CL150
ASME B16.5 ASTM B564 Hastelloy C276 Socket Weld Flange 3 Inch CL150
ASME B16.9 ASTM B366 Hastelloy C276 Welded Stub End DN609.6x4MM
ASME B16.9 ASTM B366 Hastelloy C276 45 Degree Welded Elbow LR DN609.6x4MM
ASME B16.9 ASTM B366 Hastelloy C276 90 Degree Welded Elbow LR DN609.6x4MM
Quick Detail:
Name: ASTM B677 904L ASTM B366 904L Stainless Steel Pipes SCH10 - SCH80
Place of Origin: Zhejiang, China (Mainland) Brand Name: Yaang
Shape: Stainless Steel Pipes Material: Stainless Steel
Steel Grade: B677, 904L, B366 ...
Packaging & Delivery
Packaging Detail: | according to customer's require or export's standard |
Delivery Detail: | 2 - 15 days after confirmation |
Specifications:
904L Stainless Steel Pipes
904L Stainless Steel Pipes and Stainless Steel Tubes Specifications: ASTM A/ASME SA 269/677 904L Stainless Steel Pipes and Stainless Steel Tubes
Sizes (Seamless): 1/2" NB - 8" NB
904L Stainless Steel Pipes and Stainless Steel Tubes Sizes (ERW): 1/2" NB - 24" NB
904L Stainless Steel Pipes and Stainless Steel Tubes Sizes (EFW): 6" NB - 100" NB
904L Stainless Steel Pipes and Stainless Steel Tubes Wall Thickness available: Schedule 5S - Schedule XXS (heavier on request)
904L Stainless Steel Pipes and Stainless Steel Tubes
904L Stainless Steel 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 Stainless Steel Pipes and Stainless Steel Tubes Dimensions:
All Pipes is manufactured and inspected/tested to the relevant standards including ASTM, ASME and API etc.
Key Properties
These properties are specified for flat rolled product (plate, sheet and coil) in ASTM B625. Similar but not necessarily identical properties are specified for other products such as pipe, tube and bar in their respective specifications.
Grade |
C |
Mn |
Si |
P |
S |
Cr |
Mo |
Ni |
Cu |
|
904L |
min. |
- |
- |
- |
- |
- |
19.0 |
4.0 |
23.0 |
1.0 |
Mechanical Properties
Table 2. 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. |
Physical Properties
Table 3. Typical physical properties for 904L grade stainless steels. Grade |
Density |
Elastic Modulus |
Mean Co - eff of Thermal Expansion (m/m/C) |
Thermal Conductivity |
Specific Heat 0 - 100C |
Elec Resistivity |
|||
0 - 100C |
0 - 315C |
0 - 538C |
At 20C |
At 500C |
|||||
904L |
8000 |
200 |
15 |
- |
- |
13 |
- |
500 |
850 |
Grade Specification Comparison
Table 4. Grade specifications for 904L grade stainless steels. Grade |
UNS No |
Old British |
Euronorm |
Swedish SS |
Japanese JIS |
||
BS |
En |
No |
Name |
||||
904L |
N08904 |
904S13 |
- |
1.4539 |
X1NiCrMoCuN25 - 20 - 5 |
2562 |
- |
These comparisons are approximate only. The list is intended as a comparison of functionally similar materials not as a schedule of contractual equivalents. If exact equivalents are needed original specifications must be consulted. |
Possible Alternative Grades
Table 5. 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 300C.) |
Super duplex |
Higher corrosion resistance is needed, together with a higher strength than 904L. |
Corrosion Resistance
Although originally developed for its resistance to sulphuric acid it also has a very high resistance to a wide range of environments. A PRE of 35 indicates that the material has good resistance to warm sea water and other high chloride environments. High nickel content results in a much better resistance to stress corrosion cracking than the standard austenitic grades. Copper adds resistance to sulphuric and other reducing acids, particularly in the very aggressive "mid concentration" range.
In most environments 904L stainless steel has a corrosion performance intermediate between the standard austenitic grade 316L and the very highly alloyed 6% molybdenum and similar "super austenitic" grades.
In aggressive nitric acid 904L stainless steel has less resistance than molybdenum - free grades such as 904LL and 310L.
For maximum stress corrosion cracking resistance in critical environments the steel should be solution treated after cold work.
Heat Resistance
Good resistance to oxidation, but like other highly alloyed grades suffers from structural instability (precipitation of brittle phases such as sigma) at elevated temperatures. 904L should not be used above about 400C.
Heat Treatment
Solution Treatment (Annealing) - heat to 1090 - 1175C and cool rapidly. This grade cannot be hardened by thermal treatment.
Welding
904L stainless steel can be successfully welded by all standard methods. Care needs to be taken as this grade solidifies fully austenitic, so is susceptible to hot cracking, particularly in constrained weldments. No pre - heat should be used and in most cases post weld heat treatment is also not required. AS 1554.6 pre - qualifies Grade 904L rods and electrodes for welding of 904L.
Fabrication
904L stainless steel is a high purity, low sulphur grade, and as such will not machine well. Despite this the grade can be machined using standard techniques.
Bending to a small radius is readily carried out. In most cases this is performed cold. Subsequent annealing is generally not required, although it should be considered if the fabrication is to be used in an environment where severe stress corrosion cracking conditions are anticipated.
Applications
AVAILABILITY
Seamless Pipe 1/2" WDESIGN FEATURES
Good resistance to pitting and crevice corrosion.
Very good resistance to stress corrosion cracking.
Good resistance to intergranular corrosion.
Good formability and weldability.
Maximum service temperatures of
450 deg.C. (824 deg.F).
TYPICAL APPLICATIONS
Production and transport of sulfuric acid
Metal pickling in sulfuric acid
Production and concentration of phosphoric acid
Use in seawater, brackish water, condensers, heat exchangers and pipe work in general
Paper and allied industries
Gas washing
Chemical and pharmaceutical industries
TENSILE REQUIREMENTS
Tensile Strength (KSI) 70
Yield Strength (KSI) 25
KSI can be converted to MPA (Megapascals) by multiplying by 6.895.
If any inquiry about products, please feel free to contact us [email protected]
Tel No:+86-18267732328 / Email:[email protected]
Address:Longwan District, Wenzhou, Zhejiang Province, China.
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Yaang Pipe Industry Co., Ltd. is an international supplier of piping solutions for flange, butt welding fittings, socket welding fittings and threaded fittings. Our products are widely used in different industrial fields, including oil and gas, chemical industry, petrochemical industry, power plant, pulp and paper industry, environmental and water conservancy engineering, engineering projects, etc.