| Type: | Stainless Steel Pipes |
|---|---|
| Standard: | GB, JIS, DIN |
| Grade: | 904L |
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904L/ N08904 ASTM B677 Seamless Stainless Steel Pipes Tube Stainless Pipe Tubing
Specification of our stainless steel pipe
| Products Name | Stainless Steel pIpe |
| Diameter | DN6 - DN500 |
| Wall Thickness | SCH10S - XXS or unstandard size as request |
| Length | 6m or cutting any length as request |
| Standard | ASTM JIS EN DIN |
| Technique | Hot Rolled / cold drawn |
| Type | Seamless Pipe / Welded Pipe |
| Surface | Bright Polished, Pickling |
| Main Grade | 201 304 304L 309S 310S 316L 316Ti 316LMod 317L 321 347 410 904L 254SMO 253MA 2205 2507 654SMO 926 400 c276 c22 C4 600 625 800 825.etc |
| MOQ | 500 kgs |
| Loading Port | Shanghai Port |
| Packing | wooden box or ppbag |
About 904L Stainless Steel Pipe
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.
| Grade | C | Mn | Si | P | S | Cr | Mo | Ni | Cu | |
| 904L | min.max. | -0.02 | -2 | -1 | -0.045 | -0.035 | 1923 | 45 | 2328 | 12 |
904L/ N08904 Seamless Pipe 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 |
The suitable alternatives to 904L stainless steels are tabulated below:
| Grade | Reasons for choosing grade 904L |
| 316L | A lower cost alternative, but with much lower corrosion resistance. |
| 6Mo | A higher resistance to pitting and crevice corrosion 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 |
Some of the major applications of grade 904L stainless steels include:
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