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ASTM A276 Grade 309 Rod and 309 SS Hex Bar Supplier in India


Usually, austenitic stainless steel bars are either hot finished or they could be cold finished. Yet, some specifications like the ASTM A276 and the ASTM A479 require the produced Stainless Steel 309 Round Bar to meet the mechanical property requirements of the alloy. The mechanical properties which are taken into account normally include the materials tensile strength, yield strength, rate of elongation, and hardness.

Stainless Steel 309 Round Bar

Stainless Steel 309 Round Bar
ASTM A276 Grade 309 Rod

ASTM A276 Grade 309 Rod

Grade 309 is a stainless steel alloy that performs well at elevated temperatures. The ASME SA479 309 Stainless Steel Bar has oxidation corrosion resistance up to a temperature of 1900°F, under non-cyclic circumstances. Though as a cautionary note, manufacturers do not recommend using this alloy at repeated thermal cycling conditions, because at a temperature of 1850°F there is a reduction in the oxidation resistance properties of the aisi 309 stainless steel hex Bar.

The higher contents of both chromium as well as nickel, in grade 309 stainless steel round bar offer properties that rival alloy 304. In fact properties such as corrosion resistance and the resistance to oxidation of the alloy are much superior as compared to grade 304. Moreover, the astm a276 grade 309 Rod retains a larger portion of its strength at ambient temperature as compared to the traditionally used austenitic stainless steel Alloy 304. Because of its chemical makeup, stainless steel 309 stainless steel flat bar can be employed in sulfur containing atmospheres, even if the temperature reaches a point of 1832°F.  If the material is to be applied in slightly nitriding, oxidizing, cementing, or in thermal cycling applications, the maximum service temperature for the 309 SS Bar has to be reduced.

Check sizes and dimensions of ASME SA479 309 SS Rounds, AISI 309 Stainless Steel Hex Bar



Standard Specification Of Stainless Steel 309 Round Bar

Grade Stainless Steel 309 (UNS 30900)
Standard ASTM A276 / ASME SA276
Diameter 25mm to 152mm dia
Condition Cold Drawn & Polished Cold Drawn, Centreless Ground & Polished
Finish Bright, Polish & Black
Type Round/Square/ Hexagonal/ Rectangular

Surface Finish of ASTM A276 Grade 309 Rod

Buy 309 Stainless Steel Flat Bar and ASTM A276 309 Rod in various grades and size range

CD Cold drawn P Polished
BD Bright drawn SRE Slit rolled edge
CG Centreless ground HF Hot finished
CF Cold finished HRAP Hot rolled annealed and pickled
P&T Peeled and turned RT Rough turned/peeled
ST Smooth turned PR Peeled and reeled

Various Types Of 309 stainless steel Hex Bar

Stainless Steel 309 Rounds

Stainless Steel 309 Rounds

ASTM A276 AISI 309 T-Bar

ASTM A276 AISI 309 T-Bar

ASTM A276 AISI 309 Half-Round Bar

ASTM A276 AISI 309 Half-Round Bar

309 Stainless Steel Round Bar

309 Stainless Steel Round Bar

309 Stainless Steel Threaded Bar

309 Stainless Steel Threaded Bar

309 Stainless Steel Hex Bar

309 Stainless Steel Hex Bar

Stainless Steel 309 Hollow Bar

Stainless Steel 309 Hollow Bar

ASTM A276 type 309 rod

ASTM A276 type 309 rod

309 Stainless Steel Flat Bar

309 Stainless Steel Flat Bar

SS 309 Rectangular Bar

SS 309 Rectangular Bar

309 Stainless Steel Square Bar

309 Stainless Steel Square Bar

309 Stainless Steel Rod

309 Stainless Steel Rod


Stainless Steel 309 Round Bar Size In Inch

Type SIZES (mm) SIZES (Inches) ISO Tolerance
Cold Drawn and Polish 3.00 - 75.00 1/8 - 3.00 h8-h9-h10-h11
Cold Drawn and Ground 10.00 - 75.00 5/6 - 2.50 h8-h9-h10-h11
Peeled and Polished 40.00 - 150.00 1.50 - 6.00 h11, h11-DIN 1013
Peeled and Ground 20.00 - 50.00 3/4 - 2.00 h9-h10-h11

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

Size Chart of ASME SA479 309 Stainless Steel Hex Bar

A leading 309 SS Bar and ASTM A276 Grade 309 Threaded Rod distributor in India
Size (mm) Weight (kg/m) Size (mm) Weight (kg/m) Size (mm) Weight (kg/m)
7 x 7 0.337 19 x 19 2.479 38 x 38 9.916
8 x 8 0.44 20 x 20 2.747 40 x 40 10.988
9 x 9 0.556 21 x 21 3.029 42 x 42 12.114
10 x 10 0.687 22 x 22 3.324 45 x 45 13.906
11 x 11 0.831 24 x 24 3.956 48 x 48 15.822
12 x 12 0.989 25 x 25 4.292 50 x 50 17.168
13 x 13 1.161 26 x 26 4.642 53 x 53 19.29
14 x 14 1.346 28 x 28 5.384 55 x 55 20.774
15 x 15 1.545 30 x 30 6.181 60 x 60 24.723
16 x 16 1.758 32 x 32 7.032 65 x 65 29.015
17 x 17 1.985 34 x 34 7.939 70 x 70 33.65
18 x 18 2.225 36 x 36 8.9 75 x 75 38.629

309 stainless steel Square bar Sizes

Size (mm) Weight per metre (Kg) Size (mm) Weight per metre (Kg)
12 x 12 1.14 30x30 7.11
16 x 16 2.02 40 x 40 12.60
20 x 20 3.16 50 x 50 19.80
25 x 25 4.94

ASTM A479 SS Round Bar Tolerance

Ready stock of 309 stainless steel Hex Bar & SS 309 Rounds
Finish condition Stainless Steel 309 Round Bar Tolerance class to ISO 286-2
h6 h7 h8 h9 h10 h11 h12
Drawn R R R,S,H R,S,H
Turned R R R R
Ground R R R R R R R
Polished R R R R R R R
R = Round; S = Square; H = Hexagon

309 SS Bar Chemical Compatibility

Grade C Mn Si P S Cr Mo Ni N
SS 309 0.10 max 2 max 0.75 max 0.045 max 0.030 max 18 – 20 - 8 – 10.5 -

ASTM A276 Grade 309 Rod Mechanical Strength

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
309/309L 515 205 40% 85 147

Equivalent Material Grade Of 309 stainless steel round bar

Grade UNS No Old British Euronorm Swedish SS Japanese JIS
BS En No Name
309 S30900 1.4828 SUS 309

If you are looking to buy SS 309 Round Bar from India first Check our shipments in last year

Dammam -KSA, Philippines, Indonesia, Belgium Stainless Steel 309 Bars
Qatar, Europe, France, Thailand 1.4828 Stainless Steel Round Bars
Czechia, Thailand, Germany, Malaysia 309 Stainless Bright Bars
Malaysia, Bangladesh, USA, Finland 309 Ss Hex Bar
South Africa, Kuwait, Saudi Arabia (KSA), Brazil 309s Stainless Steel Hollow Bars
Bahrain, Singapore, South Africa, Singapore 309 Steel Round Bars
Philippines, UK, Australia, Nigeria 309 Stainless Steel Rod
Oman, Hong Kong, Malaysia, UAE Astm A276 309 Stainless Steel Hex Bars
Chile, Iran, Italy, Singapore Uns S30900 Round Bars
United Arab Emirates (UAE), Norway, Turkey, Malaysia Aisi 309 Stainless Steel Bars
Netherlands, Russia, Malaysia, Dubai Asme Sa 276 Stainless Steel 309 Bars
Egypt, Mexico, Spain, UK Sus 309 Round Bar
United Kingdom -UK, Malaysia, Europe, UAE Aisi 309 Stainless Steel Bar
UK, Poland, Canada, Ellington -United States Ss 1.4828 Round Bars
Philippines, Canada, Malaysia, Singapore Astm A276 Ss 309 Forged Bar
Europe, Romania, Japan, Malaysia 309 Stainless Round Bar 12mm
Sweden, Malaysia, Colombia, China 2.3mm 50mm 309 Ss Round Bar
Malaysia, Los Alamos -Mexico, Taiwan, Philippines 1mm Aisi 309 Stainless Steel Round Bars
Singapore, NY 12203 (USA), South Korea, Malaysia Asme Sa479 309 Ss Rounds