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321 Stainless Steel Round bar

We are stockholders and suppliers, delivering to the whole of the India. Stainless steel grades are stocked in round bar, flat bar and plate (plasma cut)., We are one of the INDIA’s largest independent stainless steel stockholders and suppliers of heat resistant grade 321 / 321H round bar.At our factory in Mumbai, grade 321 / 321H round bar is available off the shelf for imediate dispatch in all sizes starting from 3mm diameter.
Material can be supplied in standard stock lengths or cut to length.

AISI 321 Stainless Steel Round Bars Specification

ROUND BAR SPECIFICATION ASTM A276 Round Bar, ASME SA276 Round Bar / ASTM A479 Round Bar  ASME SA479 Round Bar
  • 17/4PH Round Bar
  • FV520B Round Bar
  • S31254 Round Bar
  • 904L Round Bar
  • 310 Stainless Steel Round Bar
  • 321 Stainless Steel Round Bar
  • Stainless Steel 304 Round Bar
  • Stainless Steel 316 Round Bar
  • SS 440B Round Bar
  • SS 440C Round Bar
  • SS 420 Round Bar
  • AISI 410 Round Bar
  • AISI 416 Round Bar
  • AISI 431 Round Bar
  • S31803 Round Bar
  • S32760 Round Bar
ROUND BAR SIZES Diameter: 3mm~800mm
ANGLE BAR SIZES 3mm*20mm*20mm~12mm*100mm*100mm
SQUARE BAR SIZES 4mm*4mm~100mm*100mm
FLAT BAR SIZES Thickness: 2mm~100mm
Width: 10mm~500mm
HEX BAR SIZES 2mm~100mm
BILLET SIZE 1/2″ to 495mm Diameter
RECTANGLES SIZE 33mm x 30mm to 295mm x 1066mm
ROUND BAR FINISH Bright, Polish, Bright, Rough Turned, Grinding, Centreless Ground, Black, Bright Polished, Rough Turned, NO.4 Finish, Matt Finish, BA Finish
ROUND BAR TOLERANCE H8, H9, H10, H11, H12, H13K9, K10, K11, K12 or as per clients’ requirements
ROUND BAR SURFACE Hot Rolled Pickled or Sand Blasting Finished, Cold Drawn, Bright, Polished, Hairline
ROUND BAR CONDITION Cold Drawnd Pulished Cold Drawn Centreless Ground & Polished, Annealed round bar
ROUND BAR TECHNIQUE Hot Rolled, Cold Rolled, Cold Drawn, Forged Round Bar, Rod
BAR TYPE Drawn Bar, Rolled Bar, Forged Bar, GFM Forged Bar, Open Die Bar, Forged Stepped Shafts, Forged Flat Bar, Forged Square Bar
ROUNDBAR AVAILABLE IN FORM OF Round, Rod, Precision Ground Bar, Square, Round Rod, Hollow, Hex (A/F), Triangle, Rectangle, Threaded, T-Bar, Half Round Bar, Flat Bar, Rings, Blocks, Billet, Ingot, I/H Bar, Angle, Channel Bar, Profiles, Forging Etc.

321 Stainless Steel Equivalent

SS 321 1.4541 S32100 SUS 321 08Ch18N10T X6CrNiTi18-10


321 Stainless Steel Round Bars Mechanical & Physical Properties

8.0 g/cm3 1454 °C (2650 °F) Psi – 75000 , MPa – 515 Psi – 30000 , MPa – 205 35 %


Stainless Steel 321 Round Bars Chemical Composition

SS 321 0.08 max 2 max 0.75 max 0.045 max 0.03 max 17 – 19 5xC min
0.60% max
9 – 12 0.10 max


Trusted & Best company in India for Stainless Steel 321 Products.

Stainless Steel 321 Flat Bars Capabilities: The maximum length for ASTM A276 Stainless Steel 321 flat bars is 220 inches in the Stainless Steel 321 Bars with a maximum weight of 15,000 pounds.

Stainless Steel 321 Forged Round Bars Capabilities: The maximum length for forged round bars and hex bars is 420 inches, in the Stainless Steel 321 Bars with a maximum weight of 20,000 pounds, 220 inches.

Stainless Steel 321 Square Bars Capabilities: The maximum length for ASTM A276 Stainless Steel 321 square bars is 220 inches in the ASTM A276 Stainless Steel 321 Bars with a maximum weight of 15,000 pounds

Standard: ASTM A276,ASTM A479M,ASTM A582M,ASTM A314,ASTM A484M

Value Added services for Stainless Steel Round Bar:

The Difference Between Round Bar and Precision Ground Bar

Round bar is exactly as it sounds; a long, cylindrical metal bar. Round bar is available in many different diameters ranging from 1/4″ up to 24″.

Precision ground bar is manufactured through induction hardening. Induction hardening is a non-contact heating process which uses electromagnetic induction to produce the required heat. Centerless ground bar is typically produced by turning and grinding the surface to a specified size.

Precision Ground Bar, also known as ‘Turned Ground and Polished’ shafting, refers to round bars made with fine precision and high-quality steel. They are polished to ensure flawless and perfectly straight surfaces. The manufacturing process is designed for extremely close tolerances for surface finish, roundness, hardness, and straightness which ensures a long service life with reduced maintenance.

Stainless Steel Bar Stock – SS 321H Bright Bar,  DIN 1.4541 Black Bar, AISI 321 Square Bar and 321 Stainless Steel Pump Shaft in Various Sizes and Thickness for sale in Stock

Standard lengths of 2000 mm up to 6000 mm. Cut to size on request (tolerance +2/-0 mm).

5.0 mm 45.0 mm
6.0 mm 50.0 mm
7.0 mm 55.0 mm
8.0 mm 60.0 mm
9.0 mm 65.0 mm
10.0 mm 70.0 mm
12.0 mm 75.0 mm
16.0 mm 80.0 mm
20.0 mm 90.0 mm
25.0 mm 100.0 mm
30.0 mm 130.0 mm
35.0 mm 160.0 mm
40.0 mm 200.0 mm

Quality & Inspection :

  •  Each ASTM A276 Stainless Steel 321 Round Bar is tested for size tolerance, Ovality, length and Roughness.
  •  EN10204/3.1 Certificate as per ADW0
  •  All required Mechanical and metallurgical tests are carried out at our works.
  •  Bundles of ASTM A276 SS 321 Round Bar are made of 500/1000kgs each packed in HDPE sheets.
  •  Container is fumigated before stuffing. All wooden box /blockes are also fumigated.
  •  All ASTM A276 Stainless Steel 321 Round Bar are free from any internal defects
  •  Each lot is tested and ensured that material is free from Radio active contamination.


ASTM A276 SS 321 Round Bar usage/ application

    •  Cryogenic storage tanks
    •  Valves, fasteners, springs, mandrels, tubing hangers
    •  Chemical processing
    •  Aerospace
    •  Liquid fuel rocket motor components
    •  Pollution-control equipment
    •  Nuclear reactors
    •  Well head completion equipment and blow out preventers (BOP’s)