V-2 Class 40 Gray Iron

Class 40 Gray Iron Features Unique Graphite Flakes

Choose Versa-Bar Class 40 gray cast iron bar for...

  1. Decreased material costs
  2. Improved machinability
  3. Superior performance & durability
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Class 40 Gray Iron Chemical Composition

Carbon Silicon Manganese Sulfur Phosphorus
2.6-3.75% 1.8-3% 0.6-0.95% 0.07% max 0.12% max
Material Properties
Tensile strength 40,000 psi
Compressive strength 150,000 psi
Transverse strength: Average lbs. load on 1.2" dia. bar on 18" span 4,000 psi
Deflection - inches 0.25 - 0.34
Brinell hardness range 183/285
Microstructure, as cast Essentially pearlitic
Heat treatment Can be oil-quench hardened from 1575°F to attain Rockwell C-50 min. surface hardness
Machinability Very good
ASTM Specification A 48 (Class 40)

V-2 (Class 40) gray iron features a tensile strength of 40,000 psi with a compression strength of 150,000 psi. Class 40 gray iron’s hardness ranges from 187 to 269 bhn. The microstructure is essentially pearlitic. It’s used widely for bearing and bushing applications in the hydraulics industry.

Our Class 40 Continuous Cast Gray Iron is a Better Alternative

But that’s not all it’s good for—class 40 gray iron is suited well for any high wear resistance applications within the limits of the available shapes and sizes.

All grades of continuous cast iron, including Class 40 gray iron, are excellent alternatives to steel. Our continuous casting process solidifies iron at a more uniform rate than sand cast iron or steel.

Class 40 Gray Iron Machining Services:

Class 40 gray iron is appropriate for many types of machinery, including housings, pulleys, sheaves and spindles. It’s also used in the transportation industry, good for brake rotors, valve seat inserts and gears.

The unique characteristics of Versa-Bar make V-2 class 40 gray iron a superior option to gray iron provided by many other distributors of raw cast iron stock and custom components.

Class 40 Gray Iron Stock Material

Iron Bars, Rounds & Rods

American Iron & Alloys, LLC has been shipping our gray iron rods and rounds around the United States for years. Our customers are companies who order custom continuous cast rods for their various manufacturing and assembling productions. Need the best prices on custom cut ductile iron? We’re the company to call.

AS CAST BARS

Gray Iron Bars, Rounds & Rods - 6 Foot Lengths
FINISH DIAMETER IN INCHES AVG. STOCK ALLOW. EST. POUNDS PER INCH EST. POUNDS IN BAR
 .625 .085  .10 
 .750 .085  .15  11 
 .875 .085  .19  14 
 1.000 .085  .25  18 
 1.125 .085  .31  22 
 1.250 .085  .38  27 
 1.375 .085  .44  32 
 1.500 .085  .53  38 
 1.625 .085  .61  44 
 1.750 .085  .71  51 
 1.875 .085  .81  58 
 2.000 .085  .90  65 
 2.125 .110  1.04  75 
 2.250 .110  1.17  84 
 2.500 .110  1.29  93 
 2.625 .110  1.42  102 
 2.750 .110  1.56  112 
 2.875 .110  1.86  134 
 3.000 .110  2.01  145 
 3.125 .125  2.21  159 
 3.250 .125  2.38 171 
 3.375 .125  2.56  2.74 
 3.500 .125  2.74  197 
 3.625 .125  2.93  211 
 3.750 .125  3.13  225 
 3.875 .125  3.33  240 
 4.000 .125  3.54  255 
 4.250 .140  4.01  289 
 4.500 .140  4.49  323 
 4.750 .140  4.97  358 
 5.000 .140  5.50  396 
 5.250 .155  6.08  438 
 5.500 .155  6.67  480 
 5.750 .155  7.26  523 
 6.000 .155 7.89  568 
 6.250 .170  8.58  618 
 6.500 .170  9.26  667 
 6.750 .170  9.97  718 
 7.000 .170  10.71 771 
 7.250 .190  11.53  830 
 7.500 .190  12.35  889 
 7.750 .190  13.13  945 
 8.000 .190  13.96  1005 
 8.250 .216  14.92  1074 
 8.500 .216  15.82  1139 
 8.750 .216  16.74  1205 
 9.000 .216  17.68  1273 
 9.250 .254  18.76  1351 
 9.500 .254  19.81  1426 
 9.750 .254  20.83  1500 
 10.000 .254 21.89 1576
 10.250 .400  23.61  1700 
 10.500 .400  24.27  1781 
 10.750 .400  25.88  1863 
 11.000 .400  27.06  1948 
 11.500 .582  30.38  2187 
 12.000 .582  32.94  2372 
 12.500 .582  35.63  2565 
 13.000 .582  38.40  2765 
 14.000 .582  44.25  3186 
 15.000 .582  50.54  3689 
 16.000 .582  57.24  4121 
 17.000 .762  65.67  4728 
 18.000 .762  73.26  5275 
 19.000 .762  81.29  5853 
 20.000 .762  89.74  6461 

FORMULA:

As cast round weight:
Length in inches x weight per inch = total weight

 

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CENTERLESS GROUND BARS

Tolerance +.010" - .000"
FINISH DIAMETER IN INCHES EST. POUNDS PER INCH EST. POUNDS IN BAR
 .625 .08 6
 .750 .13 
 .875 .17  12 
 1.000 .21  15 
 1.125 .28  20 
 1.250 .33  24 
 1.375 .40  29 
 1.500 .49  35 
 1.625 .53  38 
 1.750 .63  45 
 1.875 .72  52 
 2.000 .82  59 
 2.125 .93 67 
 2.250 1.04  75 
 2.375 1.17 84
 2.500 1.29 93 
 2.625 1.42  102 
 2.750 1.58  114 
 2.875 1.71  123 
 3.000 1.86  135 
 3.125 2.03  146 
 3.250 2.19 158 
 3.375 2.36 170
 3.500 2.56  184 
 3.625 2.74  197 
 3.750 2.92  210 
 3.875 3.13  225 
 4.000 3.33  240 
 4.250 3.78  272 
 4.500 4.24  305 
FREE QUOTE

AS CAST O.D. - MACHINED I.D.

Versa-Tube Hollow Bars - 6 foot lengths or cut pieces
FINISH OUTSIDE DIA. IN INCHES ACTUAL INSIDE DIA. IN INCHES EST. POUNDS PER INCH EST. POUNDS IN BAR
3.500 1.250  2.42  174 
4.500 1.250  4.15  299 
5.500 1.250  6.33  456 
4.000 1.750  2.91  209 
5.000 1.750  4.86  350 
6.000 1.750  7.25  522 
4.500 2.250  3.43  247 
5.500 2.250  5.59 403 
6.500 2.250  8.21  591 
7.500 2.250  11.25  810 
6.000 2.750  6.32  455 
7.000 2.750  9.13  657 
8.000 2.750  12.38  892 
5.250 3.000  4.20  302 
6.250 3.000  6.71  483 
7.250 3.000  9.65  695 
8.250 3.000  13.04  939 
5.500 3.250  4.46  321 
6.500 3.250  7.07  509 
7.500 3.250  10.10  727 
8.500 3.250  13.61  980 
5.750 3.500  4.71  339 
6.750 3.500  7.42  534 
7.750 3.500  10.55  760 
8.750 3.500  14.18  1021 
6.000 3.750  4.96  357 
7.000 3.750  7.77  560 
8.000 3.750  11.02  794 
9.000

3.750 

14.75  1062 
6.500 4.250  5.50  396 
7.500 4.250  8.54  615 
9.500 4.250  16.02  1154 
7.000 4.750  6.00  432 
8.000 4.750  9.25  666 
9.000 4.750  12.97  934 
7.500 5.250  6.57  473 
8.500 5.250  10.06  725 
8.000 5.750  7.08  510 
9.000 5.750  10.79  777 
9.000 6.750  8.18  589 

NOTE:

Inside diameters are actual sizes.
Inside diameter will finish .250" (1/4") over dimensions show.

EXAMPLE:
Actual Size: 3.500" O.D. X 1.250" I.D.
Finish Size: 3.500" O.D. X 1.500" I.D.

FORMULA:
(O.D.2 - I.D.2) X .208 x length in inches = VERSA-TUBE® weight)

 

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Iron Tubes & Piping

Our supply of custom class 40 gray iron cast tubes and piping are available as part of our huge raw iron stock supply. Any company in the United States find exactly what they’re looking for when they order our Versa-Bar products.

Specifications
Custom I.D.s & O.D.s Up to 22"
Material Raw Iron

Iron Flat Bar & Plates

American Iron & Alloys is the BEST source for custom cast flat bars and plates. Customers who spend weeks researching companies always choose our company for orders on custom cast iron parts – contact us today.

AS CAST RECTANGLES

Gray Iron Plate Bars - 6 Foot Lengths
ACTUAL SIZE IN INCHES EST. POUNDS PER INCH EST. POUNDS PER BAR
.750 x 1.500 .29 .21
1.250 x 2.250 .74  53 
1.250 x 3.250 1.06  76 
1.250 x 4.250 1.39  100 
1.250 x 5.250 1.71   123 
1.250 x 6.250 2.04  147 
1.250 x 10.250 3.33  240 
1.500 x 2.250 .89  64 
1.500 x 3.250 1.28  92 
1.500 x 4.250 .167  120 
1.500 x 5.250 2.06  148 
1.500 x 6.250 2.44  176 
1.750 x 2.000 .92  66 
1.750 x 4.500 2.06  148 
1.750 x 6.250 2.85  205 
2.000 x 2.500 1.31  94 
2.250 x 3.250 1.90  137 
2.250 x 4.250 2.49  179 
2.250 x 5.250 3.08  222 
2.250 x 6.250 3.67  264 
2.250 x 8.250 4.84  348 
2.500 x 6.250 4.07  293 
2.500 x 7.250 4.72  340 
2.500 x 8.250 5.36  386 
3.000 x 8.250 6.44  464 
3.250 x 4.250 3.60  259 
3.250 x 10.250 8.67  624 
4.250 x 5.250 5.81  418 
FREE QUOTE

*NOTE:

Dimensions shown are actual.
Material will finish to .250" (1/4") under dimensions shown.

EXAMPLE:

Actual size: 2.250" x 4.250"
Finish size: 2.000" x 4.000"

SAW CUT PLATES

Gray Iron Plates - 6 Foot Lengths
ACTUAL SIZE IN INCHES EST. POUNDS PER INCH EST. POUNDS PER BAR
.500 x 1.250 .17 12
.625 x 1.250 .21 15
.750 x 1.250 .24 18
.500 x 2.250 .29 22
.625 x 2.250 .37 27
.750 x 2.250 .44 32
.500 x 3.250 .43 31
.625 x 3.250 .53 39
.750 x 3.250 .64 46
.500 x 4.250 .56 40
.625 x 4.250 .70 50
.750 x 4.250 .83 60
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Iron Billets & Squares

When taking your order for custom cast class 40 gray iron billets and squares, we make sure to go over your measurements to guarantee you get exactly what you’re looking for.

CAST AS SQUARES

Class 40 Gray Iron Stock
ACTUAL SIZE IN INCHES EST. POUNDS PER INCH EST. POUNDS PER BAR
1.250 x 1.250 .42 30
1.500 x 1.500 .60 43
1.625 x 1.625 .69 50
1.750 x 1.750 .81 58 
2.000 x 2.000 1.04 75 
2.250 x 2.250 1.32  95 
2.500 x 2.500 1.63   117 
3.000 x 3.000 2.35  169 
3.250 x 3.250 2.75  198 
4.250 x 4.250 4.69  338 
5.250 x 5.250 7.17  516 
6.250 x 6.250 10.17  732 
7.250 x 7.250 13.67  984 
8.250 x 8.250  17.71  1275 
9.250 x 9.250  22.25  1602 
10.250 x 10.250  27.32  1967 
12.250 x 12.250  39.03  2810 
FREE QUOTE

*NOTE:

Dimensions shown are actual.
Material will finish to .250" (1/4") under dimensions shown.

EXAMPLE:

Actual size: 2.250" x 2.250"
Finish size: 2.000" x 2.000"

Class 40 Gray Iron

V-2 Class 40 Gray Iron available as raw stock or machined parts.

Versa-Bar Continuous Cast Iron Means Improved Performance

Why choose Versa-Bar V-2 gray iron? Versa-Bar contains a high graphite flake content giving it numerous benefits over other gray iron on the market. Microscopic graphite flakes have very small recesses promoting the retention of oil. Lubricated parts stay oily longer. In the event of oil loss, versa-bar is able to retain its lubrication, and it has a better chance of survival.

What does this all mean? Greater durability. Longer life. A better product for a better price.

Class 40 gray continuous cast iron beats aluminum, bronze and steel in field comparison testing.

The chart below shows speeds and feeds to aluminum, bronze, steel and Class 40 Versa-Bar gray iron. Operators were asked to reach optimum surface feed per minute (sfm) on the Versa-Bar and maintain comparable depth of cut and surface roughness with the aluminum, bronze and steel. All tests done on conventional tooling and equipment.

As you can see, the V-2 grey iron beat the recommendations of conventional machinist handbooks for sfm on cast iron.

  CAST IRON ALUMINUM BRONZE STEEL
  V-2 GREY
(CLASS 40)
6061-T6 2024 T-3 SAE 660 C-1045
R.P.M 1100 1500 1500 1100 1500 1100 1100 1500 1100 1500
FEED .011 .013 .008 .009 .013 .009 .009 .011 .009 .013
DEPTH OF CUT .150 .150 .125 .125 .250 .125 .125 .125 .125 .125
LENGTH OF CUT 4" 4" 3" 4" 4" 4" 3.25" 3.25" 5" 5"
R.M.S 63FS 90FS 63FS 60FS 125FS 60FS 80FS 80FS 63FS 150FS
WITH COOLANT YES NO YES YES YES YES YES YES YES YES
MACHINE HORSEPOWER 7HP 7HP 7HP 7HP 7HP 7HP 7HP 7HP 7HP 7HP
TAPER .0007 .0015 .0005 .001 .001 .0005 .0005 .0005 .001 .001
S.F.M 625 825 825 575 800 575 950 1200 800 900
Contact American Iron & Alloys today to get a free quote on our class 40 gray iron stock.