ASTM A276 Stainless Stell Square Tube Rectangle Steel Tube Steel Flat Tube
304 is the standard '18/8' stainless and known to be the most versatile and most widely used stainless steel. It is chosen for its suitability for use in highly corrosive environments, resistance to chromium carbide precipitation, high formability and high weldability. 304L grade is an extra low carbon version of 304 which offers additional resistance to carbide precipitation during welding, therefore eliminating the need for post weld annealing in most cases. Applications include kitchen equipment, welded components of chemical, textile, pharmaceutical and paper processing equipment, cosmetic automotive trim, air bag inflator tubes, automotive and truck exhaust components.
Product Standard: ASTM A276
Main steel grades: 304,304L,304N,316,310,310S,316L,316Ti,316N...
Chemical Composition & Mechanical Properties:
| Grade | C | Mn | Si | P | S | Cr | Mo | Ni | N |
| 304 | min.max. | -0.08 | -2.0 | -0.75 | -0.045 | -0.03 | 18.0-20.0 | - | 8.0--10.5 | -0.10 |
| 304L | min.max. | -0.030 | -2.0 | -0.75 | -0.045 | -0.03 | 18.0-20.0 | - | 8.0--12.0 | -0.10 |
| 304H | min.max. | 0.04-0.10 | -2.0 | -0.75 | -0.045 | -0.03 | 18.0-20.0 | - | 8.0--10.5 | - |
| Grade | Tensile Strength(MPa) min | Yield Strength 0.2% Proof (MPa) min | Elongation (% in 50mm) min | Hardness |
| Rockwell B (HR B) max | Brinell (HB) max |
| 304 | 515 | 205 | 40 | 92 | 201 |
| 304L | 485 | 170 | 40 | 92 | 201 |
| 304H | 515 | 205 | 40 | 92 | 201 |
| 304H also has a requirement for a grain size of ASTM No 7 or coarser. |
Surface Condition: Austenitic stainless steel angle bar is supplied withHot-rolled ,pickled solution heat treatment state , Ferrite stainless steel angle bar is supplied with annealled state or according to customer’s request~
Application: Construction, machinery manufacturing, steel construction projects, shipbuilding, solar power generation supports, steel structure engineering, power engineering, power plants, agricultural and chemical machinery, glass curtain walls, car chassis, airport, etc..
Mark: As required.
Packing: Exporting package/wooden box /as requirement.
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ASTM A276 Welded Rectangular Steel Tubing 1.5-16mm Wall Thickness Images
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