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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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