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4140 Alloy Tubing



Alloy Steel

4140 tubing offers all of the qualities of 4140 bar stock hardenability, strength, wear, resistance, toughness and ductility. But, because the hole is already there, machining costs are greatly reduced. Used for rolls, rings, sleeves, gears and hollow parts that can be improved by strength. Conforms to ASTM A-519.

Manufactured to O.D. and Wall Dimensions.

Average Mechanical Properties

Condition

Tensile
ksi

Yield
ksi

Elong.
in 2''

% Red.
of Area

Brinell
Hardness

4140 Annealed*

80

60

25%

163

4140 Vac. Deg. Q&T**

140

130

13%

40%

285/341

* Typical properties oil quenched at 1550 F.; tempered at 1075 F. Properties at mid-wall up to .750 wall.
** Minimum Properties



Alloy Steel/HF Seamless

Stock Lengths: 8 to 24 Ft. random

Avg. Wall Wall
Decimal
I.D. Inches Weight
per Ft. in Lbs.
4140
Annealed
Seamless
4140
Q & T
Seamless
2 1/8'' O.D. x          
5/8 .625 .875 10.01 X  
2 1/4'' O.D. x          
3/8 .375 1.5 7.509 X X
1/2 .500 1.250 9.345 X  
2 1/2'' O.D. x          
1/2 .500 1.500 10.68 X X
5/8 .625 1.250 12.52 X  
2 5/8'' O.D. x          
1/2 .500 1.625 11.35 X  
2 3/4'' O.D. x          
1/2 .500 1.750 12.02 X  
3'' O.D. x          
1/2 .500 2.000 13.35 X X
5/8 .625 1.750 15.85 X  
3/4 .750 1.500 18.02 X  
3 1/8'' O.D. x          
3/8 .375 2.375 11.01 X X
5/8 .625 1.875 16.69   X
3 7/4'' O.D. x          
1/2 .500 2.250 14.69 X  
5/8 .625 2.000 17.52 X X
3/4 .750 1.750 20.03 X  
7/8 .875 1.500 22.19 X  
3 3/8'' O.D. x          
3/4 .750 1.875 21.03 X  
3 1/2'' O.D. x          
1/2 .500 2.500 16.02 X  
9/16 .563 2.375 17.66   X
5/8 .625 2.250 19.19 X  
3/4 .750 2.00 22.03 X  
7/8 .875 1.750 24.53   X
1 1.00 1.500 26.70 X X
3 3/4'' O.D. x          
1/2 .500 2.750 17.36 X  
5/8 .625 2.500 20.86 X  
3/4 .750

2.205

24.03 X  
4'' O.D. x          
1/2 .500 3.000 18.69 X X
5/8 .625 2.750 22.53   X
3/4 .750 2.500 26.03 X  
7/8 .875 2.250 29.20 X  
1 1.000 2.000 32.04 X X
4 1/4'' O.D. x          
1/2 .500 3.250 20.03 X  
3/4 .750 2.750 28.04 X X
1 1/8 1.125 2.000 37.55   X
4 1/2'' O.D. x          
1/2 .500 3.500 21.36 X  
5/8 .625 3.250 25.87 X  
3/4 .750 3.000 30.04 X X
1 1.000 2.500 37.38 X  
1 1/4 1.250 2.000 43.39   X
1 1/2 1.500 1.500 48.06   X
4 3/4'' O.D. x          
1/2 .500 3.750 22.70 X  
3/4 .750 3.250 32.04   X
1 1.000 2.750 40.05 X  
1 1/4 1.250 2.500 50.06 X  
1 1/2 1.500 2.000 56.07 X  
5 1/4'' O.D. x          
3/4 .750 3.750 36.05 X X
1 1/4 1.250 2.750 53.40 X  
1 1/2 1.500 2.250 60.08 X  
5 1/2'' O.D. x          
3/4 .750 4.000 38.05 X  
1 1.000 3.500 48.06 X X
1 1/8 1.125 3.250 52.57 X  
1 1/4 1.250 3.000 56.74 X  
1 1/2 1.500 2.500 64.08 X  
5 5/8'' O.D. x          
5/8 .625 4.375 33.38 X  
5 3/4 '' O.D. x          
1 1.000 3.750 50.73 X  
1 3/4 1.750 2.250 74.76 X  
6'' O.D. x          
3/4 .750 4.500 42.05 X  
1 1.000 4.000 53.40 X X
1 1/4 1.250 3.500 63.41   X
1 1/2 1.500 3.000 72.09 X X
1 3/4 1.750 2.500 79.43   X
2 2.000 2.000 85.44   X
6 1/4'' O.D. x          
1/2 .500 5.250 30.71   X
3/4 .750 4.750 44.06 X  
1 1.000 4.250 56.07 X  
1 1/4 1.250 3.750 66.75 X  
1 1/2 1.500 3.250 76.10 X  
2 2.000 2.250 90.78   X
6 1/2'' O.D. x          
1 3/4 1.750 3.000 88.78   X
2 2.000 2.500 96.12 X  
7'' O.D. x          
3/4 .750 5.50 50.06 X  
1 1.000 5.000 65.08 X  
1 1/2 1.500 4.000 64.08   X
2 2.000 3.000 106.8 X  
7 1/4'' O.D. x          
1 1.000 5.250 66.75 X  
1 1/4 1.250 4.750 80.10 X  
2 1/4 2.250 2.750 120.2   X
7 1/2'' O.D. x          
3/4 .750 6.000 54.07 X  
1 1.000 5.500 69.42   X
2 2.000 3.500 117.5   X
7 3/4'' O.D. x          
7/8 .875 6.000 64.25 X  
1 3/8 1.375 5.000 93.62 X  
8'' O.D. x          
3/4 .750 6.500 58.07 X  
1 1.000 6.000 74.76   X
1 1/4 1.250 5.500 90.11 X X
2 3/4 2.750 2.500 154.2   X
8 1/4'' O.D. x          
1 7/8 1.8750 4.500 127.7 X  
2 3/8 2.375 3.500 149.0 X  
8 1/2'' O.D. x          
1 1.000 6.500 80.10 X  
1 1/2 1.500 5.500 112.1 X  
8 3/4'' O.D. x          
1 1.000 6.750 82.77   X
9'' O.D. x          
1 1.000 7.000 85.44 X  
2 2.000 5.000 149.5 X  
9 1/2'' O.D. x          
1 1.000 7.500 90.78 X  
10'' O.D. x          
1 1/4 1.250 7.500 116.8 X  
1 3/4 1.750 6.500 154.2 X  
3 3.000 4.000 224.3   X
10 1/2'' O.D. x          
1 1/2 1.500 7.500 144.2   X
11'' O.D. x          
3 3.000 5.000 256.3   X
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