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SG295 Gas Cylinder Steel

SG295 Gas Cylinder Steel

Grade: SG295
Type: Pipe/Tube, Plate,
Standard: EN 10120, JIS G3116, DIN 17155
Specification: Thickness 1.5mm-300mm ||||||Width 1000mm-3000mm ||||||Length 3000mm-18000mm
Application:SG295 is mainly in the fluid transport and storing industry.

 SG295 Introduction

SG295

SG295 steel is a structural hot rolled steel in the form of plates, sheets & strips for general gas cylinder applications. SG295 is a material grade and designation defined in JIS G3116 standard. JIS G3116 is a Japanese material standard for hot rolled steel plates, sheets, strips for general gas cylinder usage. SG295 has greater elastic region & tensile strength as compare to SG255 steel. 
SG295 Usage
1) Gas cylinders (butane, propane).
2) Pressurised tanks and containers.
3) Welded pipes for transporting fl uids and gasses.
 

JIS SG295 Chemical Composition(%)

 Grade C max Si  max. Mn min P max S max
SG255 0.20 -- 0.30 0.040 0.040
SG295 0.20 0.35 1.00 0.040 0.040
SG325 0.20 0.55 1.50 0.040 0.040
SG365 0.20 0.55 1.50 0.040 0.040

JIS SG295 Mechanical Properties 

  Grades Yield Strength (MPa) min Tensile Strength (MPa) min Elongation %min Tensile test piece Bendability 
Bending Angle Inside Radius Test Piece
SG255 255 400 26 NO.5 in rolling direction 180° Thickness x 1.0 Thickness x 1.5 NO.3 in rolling direction
SG295 295 440 26 NO.5 in rolling direction 180° Thickness x 1.0 Thickness x 1.5 NO.3 in rolling direction
SG325 325 490 22 NO.5 in rolling direction 180° Thickness x 1.0 Thickness x 1.5 NO.3 in rolling direction
SG365 365 540 20 NO.5 in rolling direction 180° Thickness x 1.0 Thickness x 1.5 NO.3 in rolling direction

Stainless Steel Surface Finishes:

1. No 1 Finish : Used where Heat and corrsoion ressistance is required . Produced by annealing and resealing after hot rolling .

2. No 2D Finish : Dull Cold rolled finish . Used in deep drawn objects which are often polished after fabrication

3. NO 2 B Finish : Bright Cold Rolled Finish . Used in very deep drawn objects .

4. No 3 Finish : Polished finish obtained with abrasives

5. No 4 Finish : Used for kitchen ware , cooking utensils , restaurants and hotel kitchenware , cookware . Obtained with abrasives of 125 mesh and higher

6. NO 7 Finish : Architectural and Ornamental Finish

7. NO 8 Finish : Press plates , small mirrors and reflectors

8. Hairline finish : Ornamental plates , decorative items , name plates , elevators , doors in buildings

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