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Stainless Steel Hex Bar

Penn Stainless inventories stainless hex bar from 3/16″ thru 3″ in 303, 304/L, 316/L, 410, 416, and 440C stainless. In many sizes, stainless hex is available in our proprietary brand of machining bars: PennMet 2000. PennMet 2000 offer Superior machineability and lower cost machined parts. Our stainless bar processing equipment enables Penn Stainless to produce parts to our customers’ precise requirements.

Please review our stainless rounds, squares and rolled flat products for a full overview of stainless bar products. Contact a Penn Stainless sales associate for pricing and delivery for our stainless bar products.

Images of Hex Bar

Hex Bar Product Overview

Stainless Steel Hex Bar

Thickness Range of Flat Bar

3/16″ thru 3″ Larger sizes available upon request Get a Quote

300 Series Stainless Steel Grades

303 – 304 – 304/L – 316/316L Get a Quote

400 Series Stainless Steel Grades

416 Get a Quote

Inventory for Hex Bar


Size in Inches

Wt per Ft

Wt per 12′





3/16″ 0.104 1.248 X X X X
1/4″ 0.180 2.160 X X X X
5/16″ 0.290 3.480 X X X X
3/8″ 0.410 4.920 X X X X
7/16″ 0.560 6.72 X X X X
1/2″ 0.740 8.880 X X X X
9/16″ 0.930 11.16 X X X X
5/8″ 1.150 13.80 X X X X
11/16″ 1.390 16.68 X X X
3/4″ 1.660 19.92 X X X X
13/16″ 1.950 23.40 X X X
7/8″ 2.300 27.60 X X X X
15/16″ 2.600 31.20 X X X X
1″ 2.90 34.80 X X X X
1-1/16″ 3.30 39.60 X X X X
1-1/8″ 3.700 44.40 X X X X
1-1/4″ 4.600 55.20 X X X X
1-5/16″ 5.100 61.20 X X X
1-3/8″ 5.600 67.20 X X X X
1-7/16″ 6.100 73.20 X X X
1-1/2″ 6.600 79.20 X X X X
1-5/8″ 7.800 93.60 X X X
1-3/4″ 9.030 108.36 X X X X
1-7/8″ 10.400 124.80 X X X X
2″ 11.80 141.60 X X X X
2-1/4″ 14.920 179.04 X X X X
2-3/8″ 16.920 203.04 X X X
2-1/2″ 18.42 221.04 X X X X
3″ 26.53 318.36 X X X X



  • Hex Bar can be cut to size.
  • Hex Bar can be polished per customers specifications.
  • Hex Bar may be stocked in PennMet 2000 for improved machinability.

For other sizes and grades, contact a Penn Stainless sales associate for details.

Processing for Hex Bar

Customers can select a number of processing options to produce stainless steel bars to their exact specifications, reducing materiel costs, production time, scrap and internal handling.

 Long Product Processing Services Overview

Hex Bar Cutting

Products cut include Round Bar, Flat bar, Hex bar, Square bar, Tubing and Hollow Bar, Pipe, Angles, channels, Beams and Tees.  Thickness range is 1/16″ to 28″ diameter More Information 

Hex Bar Production Cutting

Penn Stainless can provide production cutting for product diameters up to 4″.  We utilize Amanda Production Equipment to achieve these precision cuts with tight tolerances. More Information

Hex Bar Polishing

Products polished included all tubular products, with OD & ID polishing available, Round Bar, Square Bar, Hex & Flat bar, Angles, Uneven Leg Angles, beams, and other shapes. More Information

Value Added for Hex Bar

The following value added services can be provided by Penn Stainless Products in order to meet the exact specifications of your stainless steel bar requirements.

Stainless Steel Bar Value Added Options

Stainless Steel Bar Polishing

Penn Stainless can polish nearly any stainless steel bar item to a #4 polish, #6 Polish, #7 polish or a #8 mirror finish.  Stainless steel polished bar can also be cut to size. Pitt free surfaces can also be provided.

More Information

Technical Question?

Heat Treating & Annealing

Some grades of stainless steel bars can be heatreated to change the mechanical properties. Precipitation Hardening Stainless Steels such as 17-4PH can be heat treated. 410 stainless steel bar can also be heat treated.  In some cases, secondary annealing 300 series stainless steel may be required depending on the application

More Information

 Technical Question?

Positive Material Identification (PMI)

Penn Stainless can perform PMI testing in house for most stainless steel grades, or we can work with independent labs to complete PMI in order to meet customer specifications.

More Information

 Technical Question?

UT Testing

In some cases, UT testing of the stainless steel bar may be required. We can assist you with this requirement.

More Information

 Technical Question?
  • Need 1,100 pieces of 7/8″ 303 round bar cut to 2-1/8″ long?  We can process this job in a few days with our Amada CM100CNC with precise part tolerances
  • Rapid cut of round bar 5/8″ thru 4″ dia
  • Larger stainless bar cutting thru 26″ in diameter
  • Multiple cutting stations allow us to ship cut stainless bar to size when you need it.
  • Grinding and polishing available upon request
  • Special heat treat requirements can also be supplied. Ask for details.
  • Stainless round bars can also be polished or center-less ground to exact tolerances.

Hex Bar Tolerances

Cold Finished Hex Bar Tolerances:




1/8″ to 5/16″ (exclusive) 0.000 0.002
5/16″ to 1/2″ (exclusive) 0.000 0.003
1/2″ to 1″ (inclusive) 0.000 0.004
over 1″ to 2″ (inclusive) 0.000 0.006
over 2″ to 3″ (inclusive) 0.000 0.008

Cold Finished Hex Bar Straightness Tolerance:

CF: 1/16 inch in any 5 foot; but may not exceed 1/16 inch X (length in ft/5)

Specifications for Hex Bar

Below you will find a brief overview of a number of stainless steel bar specifications. If you do not see a specification listed, please contact us.

Stainless Steel Hex Bar Specifications


This specification encompasses cold-finished or hot-finished bars, including rounds, squares, and hexagons, and hot-rolled or extruded shapes, such as angles, tees, and channels in the more commonly used types of stainless steels. More Information Technical Question?


This specification includes cold and hot finished stainless steel bars, including rounds, squares, and hexagons, and hot-rolled or extruded shapes such as angles, tees, and channels. More Information Technical Question?


This specification includes wrought stainless steel bars, shapes, forgings, and billets or other semi-finished materials, except wire, for forging. The materials are available in four types of conditions. More Information Technical Question?


 This specification includes cold or hot finished bars, which are suitable for machining processes. This specification includes rounds, squares, and hexagons, from common types of stainless free-machining steels.  More Information  Technical Question?


 This specification includes nickel alloy bar & wire, which can be produced in a solution-annealed condition, stabilized-annealed condition, or annealed condition. More Information Technical Question?

Call us at 1-800-222-6144 for more information