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316l stainless steel flat bar

Stainless steel 316l flat bar specifications

What is a Stainless Steel 316L Flat Bar/ Hex Bar / Square Bar?

The chemical composition of this material – chromium, nickel, molybdenum, and a minor amount of carbon (0.03%) – is in high industrial demand. A stainless steel 316L flat bar delivers top-of-the-rung corrosion resistance even in pharmaceuticals, ozone generators, and sewage water filters. Its low-carbon profile gets complemented by the addition of manganese and silicon.

These bars can assume shapes such as a square and a DIN 1.4404 hex bar, with client-specified dimensions and processing requirements.

Stainless steel 316l square bar supplier in India


Specification of stainless steel 316l flat bar

Specifications Size Thickness
ASTM A 240, ASME SA 240 1000 mm x 2000 mm 0.3 mm To 120 mm
Finish Condition Tolerance
Bright, polish & black. Cold drawn & polished cold drawn, centreless ground h8, DIN 671, h10, h11, ASTM A484, DIN 1013
Processing services of SS 316l square bar Techniques American standard of SS 316l flat bar
Bending, welding, cutting, decoiling Cold rolled, hot rolled AiSi, DIN, ASTM, JIS, EN, GB

With experience as a ASTM A276 SS 316l hex bar manufacturer in India, check applicatons

What are the properties and applications of a Stainless Steel 316L Flat Bar/Hex Bar/Square Bar?

Top-notch corrosion resistance is deservedly the highlight of 316L stainless steel hex bars. However, their list of beneficial properties is impressively long:

  • Can endure severe temperatures up to 925 °C
  • Less prone to weld decay
  • A UNS S31603 flat bar requires little maintenance and is easy to clean
  • Suitable for hygienic and sanitary environments

An ASTM A276 SS 316L hex bar and SS 316l circle has immense applications in several sectors, like food processing, brewing, and applications in coastal areas (exposed to high salt concentrations).

Types of SS 316l bar


Stainless steel 316l square bar

Stainless steel 316l square bar

Stainless steel 316l flat bar

Stainless steel 316l flat bar

DIN 1.4404 hex bar

DIN 1.4404 hex bar

SS 316l square bar

SS 316l square bar

To assure their quality and performance, UNS S31603 316l flat bar are put through a variety of quality control tests

What are the different types of metallurgical testing methods used for a Stainless Steel 316L Flat Bar/Hex Bar/Square Bar?

Complete and accurate testing is a must for a SS 316L square bar since it operates in many critical sectors. Metallurgical testing focuses on the microstructure of a specimen under the microscope (magnification up to 500 diameters) and covers the grain size and contamination. It also includes other properties of ASTM A276 UNS S31603 square bars and SS 316l ring, like:

  • Tensile strength
  • Hardness
  • Elasticity

Most manufacturers use spectrometry to confirm the chemical composition and non-destructive approaches like Eddy Current to diagnose defects. Visual inspection of a WNR 1.4404 316l square bar can also be helpful when correct tools, like callipers and micrometres, get used. These tests work in tandem with metallography and grain size/composition analysis.

We ensure precise testing of a UNS S31603 hexagon bar and detail the observations in the Mill Test Report, radiography certificate, and other supporting documents.

Chemical composition of 316l SS hex bar


C Mn Si P S Cr Ni
0.08 max 2 max 0.75 Max 0.045 max 0.030 max 18 - 20 8 - 11
We offer a range of surface finishes for WNR 1.4404 316l square bar, including custom options

Mechanical properties of SS 316l square bars


Grade Melting points Density Tensile strength Elongation Yield strength(0.2% offset)
SS 1400°C (255°F) 8.0g/ cm3 75000PSi (MPa-515) 35% 30000PSi (MPa-205)
Check the technical data sheet for our stainless steel 316L hex bars to ensure they meet the requirements of your project

Equivalent grade of 316l SS hexogon bars


Standard Werkstoff nr. UNS JIS BS GOST AFNOR EN
SS 1.4301 S30400 SUS 304 304S31 08X18H10 Z7CN18-09 X5CrNi18-10

Tolerance of SS 316l square bar


Manufacturing length Cut to length Stock length
3000 to 9000 Up to 9000 3000 or 6000
+/- 500 To specifications with +/- 5 min 0, +200
Length Length and tolerance eg 6000

Size chart of polished 316l stainless steel flat bar


ASTM A240 WNR 1.4401 SS 316l flat bar 6mm, 10mm, 8mm, 13mm, 12mm, 15mm, 14mm, 18mm, 16mm, 22mm, 20mm, 30mm, 25mm, 40mm, 35mm, 50mm, 45mm, 70mm, 60mm, 80mm, 75mm, 100mm, 90mm, 150mm, 120mm,
Imperial SS 316l flat bar 1/4″, 3/8″, 5/16, 1/2″, 3/4, 5/8″, 1 1/4, 7/8″, 1″, 1 3/4, 2”, 1 1/2, 4″

Applications of WNR 1.4401 SS 316l hex bar


  • Boat Fittings.
  • Heat Exchangers
  • Brewery Equipment.
  • Food Processing Equipment.
  • Chemical Transportation Containers.
  • Coastal Architectural Paneling.
  • Chemical & Petrochemical Equipment.

Weight chart of ASTM A276 DIN 1.4404 SS 316l flat bar


Size (mm) Weight (Kg/mtr) Weight (kg/ft)
12 x 5 0.470 0.143
12 x 3 0.282 0.086
18 x 4 0.585 0.180
20 x 3 0.470 0.143
20 x 6 0.942 0.287
20 x 5 0.790 0.241
25 x 3 0.600 0.183
25 x 6 1.197 0.365
25 x 5 1.000 0.305
25 x 8 1.550 0.470
25 x 12 2.398 0.731
25 x 10 1.998 0.609
32 x 3 0.798 0.243
32 x 6 0.457 0.457
32 x 5 1.296 0.395
32 x 8 2.202 0.671
32 x 12 3.297 1.005
32 x 10 2.802 0.854
32 x 16 4.403 1.342
40 x 5 1.598 0.487
40 x 3 0.899 0.274
40 x 6 1.903 0.580
40 x 10 3.100 0.945
40 x 8 2.500 0.762
40 x 12 3.799 1.158
40 x 20 6.300 1.920
40 x 16 4.997 1.523
40 x 25 7.897 2.407
50 x 3 1.197 0.365
40 x 32 9.505 2.897
50 x 5 1.998 0.609
50 x 8 3.097 0.944
50 x 6 2.398 0.731
50 x 10 3.898 1.188
50 x 16 6.300 1.920
50 x 12 4.698 1.432
50 x 20 7.799 2.377
50 x 40 15.598 4.754
50 x 25 9.797 2.986
63 x 6 3.002 0.915
63 x 10 4.922 1.500
63 x 8 4.000 1.219
63 x 12 5.899 1.798
63 x 20 9.899 3.017
63 x 16 7.897 2.407
63 x 25 12.399 3.779
63 x 40 19.798 6.034
63 x 32 15.798 4.815