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Rolled Flat Stainless Steel Bar

Penn Stainless Products stocks stainless rolled and flat bar in 304/L and 316/316L hot finished. We also stock 303 in cold finished rolled flat bars. All stainless rolled flat bars are stocked in standard 12’ random length sections. Penn Stainless will also process all stainless rolled flat bar. Our saw cutting capabilities enable our customers to receive the parts needed to start production.

We can also polish stainless rolled flat bars per your specifications. Other grades and non standard sizes can be supplied upon request. Please contact a sales associate for more information regarding our stainless inventory and processing capabilities.

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Rolled Flat Bar Overview

Stainless Steel Rolled Flat Bar

Thickness Range of Flat Bar

1/8″ thru 1-1/2″ thick x 3/8″ thru 8″ wide Get a Quote

300 Series Stainless Steel Grades

303- 304/304L - 316/316L Get a Quote

400 Series Stainless Steel Grades

416 - 17-4PH Get a Quote

Steel Bar Inventory

  • X = Stocked Item
  • P = Call For Availability
  • Rolled flat true bar (R/F) can be cut to size.
  • R/F bar can be polished per customer specifications.
  • Special widths and lengths up to 20′ R/L can be produced.

Size in Inches

Lbs per Ft

Lbs Per 12′

303

304

304L

316/L

416

17-4PH

1/8″ x 1/2″ .210 2.52 X X X X P P
1/8″ x 5/8″ .266 3.192 X X X X P P
1/8″ x 3/4″ .230 2.760 X X X X P P
1/8″ x 1″ .425 5.100 X X X X P P
1/8″ x 1-1/4″ .510 6.12 X X X X P P
1/8″ x 1-1/2″ .638 7.656 X X X X P P
1/8″ x 2″ .850 10.200 X X X X P P
3/16″ x 1/2″ .320 3.840 X X X X P P
3/16″ x 3/4″ .480 5.760 X X X X P P
3/16″ x 1″ .640 7.680 X X X X P P
3/16″ x 1-1/4″ .797 9.564 X X X X P P
3/16″ x 1-1/2″ .960 11.520 X X X X P P
3/16″ x 2″ 1.280 15.360 X X X X P P
3/16″ x 2-1/2″ 1.600 19.200 X X X X P P
3/16″ x 3″ 1.910 22.920 X X X X P P
1/4″ x 1/2″ .430 5.160 X X X X P P
1/4″ x 3/4″ .640 7.680 X X X X P P
1/4″ x 1″ .850 10.200 X X X X P P
1/4″ x 1-1/4″ 1.060 12.720 X X X X P P
1/4″ x 1-1/2″ 1.280 15.360 X X X X P P
1/4″ x 1-3/4″ 1.490 17.880 X X X X P P
1/4″ x 2″ 1.700 20.400 X X X X P P
1/4″ x 3″ 2.130 25.560 X X X X P P
1/4″ x 3-1/2″ 2.950 35.400 X X X X P P
1/4″ x 4″ 3.400 40.800 X X X X P P
1/4″ x 5″ 4.250 51.000 X X X X P P
5/16″ x 3/4″ .800 9.600 X X X X P P
5/16″ x 1″ 1.060 12.72 X X X X P P
5/16″ x 1-1/4″ 1.330 15.96 X X X X P P
5/16″ x 2″ 1.600 19.20 X X X X P P
5/16″ x 2-1/2″ 2.660 19.92 X X X X P P
5/16″ x 3″ 3.190 38.28 X X X X P P
5/16″ x 4″ 4.250 51.00 X X X X P P
3/8″ x 1/2″ .640 7.680 X X X X P P
3/8″ x 3/4″ .960 11.52 X X X X P P
3/8″ x 1″ 1.280 15.36 X X X X P P
3/8″ x 1-1/4″ 1.600 19.20 X X X X P P
3/8″ x 1-1/2″ 1.910 22.92 X X X X P P
3/8″ x 1-3/4″ 4.250 51.00 X X X X P P
3/8″ x 2″ 2.550 30.60 X X X X P P
3/8″ x 2-1/2″ 3.190 38.28 X X X X P P
3/8″ x 3″ 3.830 45.96 X X X X P P
3/8″ x 3-1/2″ 4.470 53.64 X X X X P P
3/8″ x 4″ 5.110 61.32 X X X X P P
1/2″ x 3/4″ 1.280 15.36 X X X X P P
1/2″ x 1″ 1.700 20.40 X X X X P P
1/2″ x 1-1/4″ 2.120 25.44 X X X X P P
1/2″ x 1-1/2″ 2.550 30.60 X X X X P P
1/2″ x 1-3/4″ 2.980 35.76 X X X X P P
1/2″ x 2″ 3.400 40.80 X X X X P P
1/2″ x 2-1/2″ 3.830 45.96 X X X X P P
1/2″ x 3″ 5.110 61.32 X X X X P P
1/2″ x 3-1/2″ 5.950 71.40 X X X X P P
1/2″ x 4″ 6.810 87.72 X X X X P P
1/2″ x 5″ 8.508 102.96 X X X X P P
1/2″ x 6″ 10.210 122.52 X X X X P P
5/8″ x 3/4″ 1.595 19.140 X X X X P P
5/8″ x 1″ 2.130 25.560 X X X X P P
5/8″ x 1-1/4″ 2.660 31.920 X X X X P P
5/8″ x 1-1/2″ 3.190 38.280 X X X X P P
5/8″ x 2″ 4.250 51.000 X X X X P P
5/8″ x 2-1/2″ 5.320 63.840 X X X X P P
5/8″ x 3″ 6.380 76.560 X X X X P P
5/8″ x 3-1/2″ 7.450 89.400 X X X X P P
5/8″ x 4″ 8.510 102.120 X X X X P P
5/8″ x 5″ 10.640 127.680 X X X X P P
5/8″ x 6″ 12.760 153.120 X X X X P P
3/4″ x 1″ 2.550 30.600 X X X X P P
3/4″ x 1-1/4″ 3.190 38.280 X X X X P P
3/4″ x 1-1/2″ 3.830 45.960 X X X X P P
3/4″ x 1-3/4″ 4.470 53.640 X X X X P P
3/4″ x 2″ 5.110 61.320 X X X X P P
3/4″ x 2-1/2″ 6.380 76.560 X X X X P P
3/4″ x 3″ 7.660 91.920 X X X X P P
3/4″ x 3-1/2″ 8.930 107.160 X X X X P P
3/4″ x 4″ 10.210 122.520 X X X X P P
3/4″ x 5″ 12.760 153.120 X X X X P P
3/4″ x 6″ 15.310 183.720 X X X X P P
1″ x 1-1/4″ 4.250 51.000 X X X X P P
1″ x 1-1/2″ 5.110 61.320 X X X X P P
1″ x 1-3/4″ 5.960 71.520 X X X X P P
1″ x 2″ 6.810 81.720 X X X X P P
1″ x 2-1/2″ 8.510 102.120 X X X X P P
1″ x 3″ 10.210 122.520 X X X X P P
1″ x 3-1/2″ 11.910 142.920 X X X X P P
1″ x 4″ 13.610 163.320 X X X X P P
1″ x 5″ 17.020 204.240 X X X X P P
1″ x 6″ 20.420 245.04 X X X X P P
1-1/4″ x 1-1/2″ 6.381 76.572 X X X X P P
1-1/4″ x 2″ 8.510 102.12 X X X X P P
1-1/4″ x 2-1/2″ 10.640 127.68 X X X X P P
1-1/4″ x 3″ 12.760 153.120 X X X X P P
1-1/4″ x 4″ 17.020 204.240 X X X X P P
1-1/2″ x 2″ 10.210 122.520 X X X X P P
1-1/2″ x 2-1/2″ 12.760 153.120 X X X X P P
1-1/2″ x 3″ 15.300 183.600 X X X X P P
1-1/2″ x 4″ 20.400 244.800 X X X X P P
2″ x 3″ 20.420 245.040 X X X X P P
2″ x 4″ 27.200 326.400 X X X X P P

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

Processing for Rolled Flat 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

Rolled Flat 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 

Rolled Flat 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

Rolled Flat 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 Resources for Steel 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

Heatreating & 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 heatreated. 410 stainless steel bar can also be heatreated.  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 55 pieces of 1″ x 2-1/4″ 303 rolled flat bar cut to 6-9/16″ long? We can process this job in a few days with our Amada CM100CNC.
  • Rapid cut of round bar 5/8″ thru 4″ dia
  • Rapid cut of Square, Hex & Rectangular bars
  • Our stainless Rolled Flat bar can be polished to your exact requirement.
    • Please specify the number of sides that require your polishing
  • Non standard rolled flat bar sizes can be ordered. Non standard grades can also be supplied.

Cold Finish Rolled Flat Tolerances:

  • When it is necessary to heat treat or heat treat and pickle after cold finishing, size tolerance are double those shown in the table.
  • Cold-finished bars over 4-1/2 inch wide or thick are produced
    • Width and thickness tolerances for such bars are not included herein.
Width (inches)
Width Tolerance Thickness Tolerances in Inches
Up to 1/4 Inclusive Over 1/4 Exclusive
1/16 to 3/8 (incl) +0.005 -0.005 +0.005 -0.005 +0.002 -0.002
over 3/8 to 1 (incl) +0.004 -0.004 +0.004 -0.004 +0.002 -0.002
over 1 to 2 (incl) +0.006 -0.006 +0.004 -0.004 +0.003 -0.003
over 2 to 3 (incl) +0.008 -0.008 +0.004 -0.004 +0.004 -0.004
over 3 to 4 1/2 +0.010 -0.010 +0.005 -0.005 +0.005 -0.005

Cold Finish Rolled Flat Straightness Tolerance:

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

Hot Finish Rolled Flat Tolerances:

Width (inches) Width Tolerance Thickness Tolerances in Inches
1/8-1/2 Over
1/2 -1
Over
1-2
Over
2-4
Over
4-6
Over
6-8
to 1 (incl) +0.015
-0.015
+0.008
-0.008
+0.010
-0.010
over 1 to 2 +0.031
-0.031
+0.012
-0.012
+0.015
-0.015
+0.031
-0.031
over 2 to 4 +0.062
-0.031
+0.015
-0.015
+0.020
-0.020
+0.031
-0.031
+0.062
-0.031
over 4 to 6 +0.093
-0.062
+0.015
-0.015
+0.020
-0.020
+0.031
-0.031
+0.062
-0.031
+0.093
-0.062
over 6 to 8 +0.125
-0.156
+0.016
-0.016
+0.025
-0.025
+0.031
-0.031
+0.062
-0.031
+0.093
-0.062
+0.125
-0.156
over 8-10 +0.156
-0.187
+0.020
-0.020
+0.031
-0.031
+0.031
-0.031
+0.062
-0.031
+0.093
-0.062
+0.125
-0.156

Hot Finish Rolled Flat Straightness Tolerance:

HF: 1/8 inch in any 5 foot; but may not exceed 1/8 inch X (length in ft/5)

Rolled Flat Grade Specifications

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 Rolled Flat Bar Specifications

ASTM A276

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?

ASTM A479

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?

ASTM A484

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?

ASTM A582

 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?

ASTM B473

 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