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SS 321h Square Bars & ASTM A276 Type 321 Rod Manufacturer in India


In addition to being used for applications such as Chemical Processing, Food Processing, Waste Treatment & in Aerospace, austenitic stainless steel may able be used in Petroleum Refining industries. In petroleum refineries, the equipment used to refine petroleum may become susceptible to PASCC. Essentially, PASCC, or as known as Polythionic Acid Stress Corrosion Cracking is a kind of intergranular stress corrosion.

Stainless Steel 321 Round Bar

Stainless Steel 321 Round Bar
ASTM A276 Type 321 Hex Bar

ASTM A276 Type 321 Hex Bar

PASCC is a condition that affects sensitized stainless steel alloys, particularly those alloys used in petroleum refineries, where the application is to process feedstocks that contain sulfur. This damage mechanism of PASCC primarily affects the conventionally used and high carbon stainless steel. Although low carbon and chemically stabilized alloys such as the ASME SA276 Grade 321 ss Bar may be vulnerable to getting corroded, under some situations, compared to high carbon alloys, the chances of this happening are relatively lower. The UNS S32100 Forged Bar exhibits good general corrosion resistance rivaling that of stainless steel alloy 304. The alloy is able to withstand elevated temperatures because the 321 stainless steel square bar developed with the intention of being used between 1800 – 1500°F. This high temperature range is referred to as the in the chromium carbide precipitation range. The Stainless Steel 321 Round Bar is well suited for applications in most diluted organic acids at moderate temperatures as well as in 10% diluted solvents at raised temperatures. The 321 Stainless Steel Round Bar could be employed in pure phosphoric acid solutions at lower temperatures. Corrosive chemicals such as chloride or fluoride free caustic solutions have no effect on the SS 321 Rod at moderate temperatures. Though the alloy has decent corrosion resistance properties, the ASTM A276 type 321 SS Bar does not operate adequately in chloride solutions, even if the alloy has been exposed to small concentrations, or in sulfuric acid applications.

View ASTM A479 321 Stainless Steel Flats Bar price per meter ex Mumbai



ASME SA276 Grade 321 ss Bar Specification Format

SUS 321 Stainless Steel Round bars size Diameter: 3-~800mm
ASME SA276 Stainless Steel 321 Hex Bars size 2-100mm A/F
Stainless Steel 321 Grade Flat bars size Thickness: 2 -100mm
Width: 10 to 500mm
321 Stainless Steel Square bars size 4 to 100mm
Stainless Steel Uns S32100 Angle bars size (in mm) 3*20*20~12*100*100
SAE 321 Stainless Steel Section 3.0 to 12.0mm thickness
1.4541 AISI 321 SS Channel Bars (in mm) 80 x 40 to 150 x 75 section; 5.0 to 6.0 thickness
SS Grade 321H Hollow Bars (in mm) 32 OD x 16 ID to 250 OD x 200 ID)
Stainless Steel Grade 321 Billet Size 1/2″ to 495mm Diameter
FOOD Grade 321 Stainless Steel Rectangles Size 33 x 30mm to 295 x 1066mm
ASME SA276 Stainless Steel 321 Round Bars Finish Cold (bright) drawn, centreless ground, hot rolled, smooth turned, peeled, slit rolled edge, hot rolled annealed, Rough Turned, Bright, Polish, Grinding, Centreless Ground & Black
Stainless Steel 321 Round Bar Surface Bright, Hot Rolled Pickled, Cold Drawn, Sand Blasting Finished, Polished, Hairline
321 Stainless steel Round Bars Condition Hardened & tempered, annealed
SS 321 Grade Bars Technique Hot Rolled, Cold Drawn, Cold Rolled, Forged Round Bar, Rod
Grade 321 Stainless Steel Round Bars Tolerance H8, H9, H10, H11, H12, H13K9, K10, K11, K12 or as per clients’ requirements
AISI 321 Stainless Steel Bars Processing Bar cutting to 650mm
Our Stainless Steel 321 Grade Round bars conforms to NACE MR0175/ISO 15156

Most Popular Types Of UNS S32100 Forged Bar

Buy custom sizes ASTM A479 321 Stainless Steel Flats Bar & SS 321h Square Bar from our Inventory

321 Stainless Steel Threaded Bars

321 Stainless Steel Threaded Bars

321 Stainless Steel Hex Bar

321 Stainless Steel Hex Bar

Stainless Steel 321 Hollow Bars

Stainless Steel 321 Hollow Bars

ASTM A276 type 321 rod

ASTM A276 type 321 rod

Stainless Steel 321 Rounds

Stainless Steel 321 Rounds

ASTM A276 AISI 321 T-Bars

ASTM A276 AISI 321 T-Bars

ASTM A276 AISI 321 Half-Round Bars

ASTM A276 AISI 321 Half-Round Bars

321 Stainless Steel Round Bars

321 Stainless Steel Round Bars

321 Stainless Steel Flat Bar

321 Stainless Steel Flat Bar

SS 321 Rectangular Bars

SS 321 Rectangular Bars

321 Stainless Steel Square Bars

321 Stainless Steel Square Bars

321 Stainless Steel Rod

321 Stainless Steel Rod


Stainless Steel 321 Round Bar Size Chart

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

SS 321 Forged bar Surface Finish

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

ASTM A276 Type 321 Hex Bar Size Chart In Mm

Check sizes, dimensions, and ready stock of 321 Stainless Steel Rod, UNS S32100 Forged Bar
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

SS 321h 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

SS 321 Rod Chemical Resistance Guide

A wide stock of Stainless Steel 321 Round Bar, ASTM A276 Type 321 Hex Bar as per ASTM A276/A479 specification
Grade C Mn Si P S Cr N Ni Ti
SS 321 0.08 max 2.0 max 1.0 max 0.045 max 0.030 max 17.00 – 19.00 0.10 max 9.00 – 12.00 5(C+N) – 0.70 max
SS 321H 0.04 – 0.10 2.0 max 1.0 max 0.045 max 0.030 max 17.00 – 19.00 0.10 max 9.00 – 12.00 4(C+N) – 0.70 max

Mechanical Analysis of ASTM A276 type 321 SS Bar

Density Melting Point Tensile Strength Yield Strength (0.2%Offset) Elongation
8.0 g/cm3 1457 °C (2650 °F) Psi – 75000 , MPa – 515 Psi – 30000 , MPa – 205 35 %

Equivalent Grades Of ASTM A276 Type 321 Bar

STANDARD WERKSTOFF NR. UNS JIS EN
SS 321 1.4541 S32100 SUS 321 X6CrNiTi18-10
SS 321H 1.4878 S32109 SUS 321H X12CrNiTi18-9

Tolerance of Stainless Steel 321 Round Bar

Finish condition Stainless Steel 321 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

Do you belong to following locations Please see what we supply here

Dammam -KSA, Philippines, Indonesia, Belgium SS 321H Rod
Qatar, Europe, France, Thailand Stainless Steel 321 Hollow Bar
Czechia, Thailand, Germany, Malaysia 321 Stainless Steel Flat Bar
Malaysia, Bangladesh, USA, Finland ASTM A276 SUS321 Precision Ground Bar
South Africa, Kuwait, Saudi Arabia (KSA), Brazil 321 Stainless Steel Hex Bar
Bahrain, Singapore, South Africa, Singapore ASTM A276 AISI 321 Half-Round Bar
Philippines, UK, Australia, Nigeria ASTM A276 Type 321 Forged Bar
Oman, Hong Kong, Malaysia, UAE Stainless Steel 321 Threaded Bar
Chile, Iran, Italy, Singapore SUS321 Threaded Bars
United Arab Emirates (UAE), Norway, Turkey, Malaysia ASTM A276 Type 321 Polished Bar
Netherlands, Russia, Malaysia, Dubai ASTM A276 AISI 321 Bright Bar
Egypt, Mexico, Spain, UK ASTM A276 Type 321 Cold Rolled Bar
United Kingdom -UK, Malaysia, Europe, UAE 321 Stainless Steel Billets
UK, Poland, Canada, Ellington -United States SS 321 Black Bar
Philippines, Canada, Malaysia, Singapore ASTM A276 Type 321 Flat Bar Rolled Edge
Europe, Romania, Japan, Malaysia ASTM A276 AISI 321 Rebar
Sweden, Malaysia, Colombia, China cold drawn stainless steel ansi 321 stainless steel round bar
Malaysia, Los Alamos -Mexico, Taiwan, Philippines SS WERKSTOFF NR. 1.4541 Round Bars
Singapore, NY 12203 (USA), South Korea, Malaysia AISI 321 Stainless Steel Forged Round Bars