904 L Pipe
Product Description
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.
The following sections describe the properties of flat rolled products in ASTM B625. The specifications may not be identical for other products such as bar, tube and pipe.
| NAME | Stainless Steel Seamless&Welded Pipe/Tube |
| TYPE: | WELD/SEAMLESS 304 316L 201 Stainless Steel Pipe |
| STANDARD: | ASTM A312,A554,A213,A778,A269, A249,A270,A358 |
| JIS G3459,G3468,G3463,G3446,G3448 GB/T 12771,24593,12770,19228 | |
| MATERIAL: | 304,304L,316,316L,321,310,430,904l |
| 06Cr19Ni10,022Cr19Ni10,06Cr17Ni12Mo2,022Cr17Ni12Mo2,10Cr17 | |
| SUS304,SUS304L,SUS316,SUS316L,SUS430 | |
| X5CrNi18-101.430,X2CrNi18-91.4307,X5CrNiMo17-12-2 1.4401,X2CrNiMo17-12-2 1.4404,X6Cr171.4016 | |
| Outer Diameter: | 9.5-900mm |
| Wall Thickness: | 0.8-30mm |
| Tolerance: | tolerance of diameter:+/-0.13--+/-1.26mm |
| tolerance of thickness:+/-10% | |
| SURFACE: | 180G, 320G Satin / Hairline(Matt Finish, Brush, Dull Finish) |
| PICKLING & ANNEALING | |
| Application: | Fluid and gas transport,decoration,industry,medical equipment,aviation, |
| boiler heat-exchanger and other fields | |
| TEST: | Flattening Test, Hydrostatic Test, Intergranular Corrosion Test, |
| Flattening Test, Eddy Testing, etc | |
| CUSTOMIZED: | Other specifications according to customers' requirements |
| PACKAGE: | Bundled with knitted plastic bag, wooden cases or according to customers'request |
| Surface Finish | Definition |
| 2B | Those finished, after cold rolling, by heat treatment, |
| pickling or other equivalent treatment and lastly by cold rolling | |
| to given appropriate luster. | |
| BA | Those processed with bright heat treatment after cold rolling. |
| NO.3 | Those finished by polishing with No.100 to No.120 abrasives |
| specified in JIS R6001. | |
| NO.4 | Those finished by polishing with No.150 to No.180 abrasives |
| specified in JIS R6001. | |
| HL | Those finished polishing so as to give continuous polishing streaks |
| by using abrasive of suitable grain size. | |
| NO.1 | The surface finished by heat treatment and pickling or processes |
| corresponding there to after hot rolling. 304 316L 201 Stainless Steel Pipe |
