ALLOY STEEL ROUNDS 41L40, 41L47, 41L50, 4150, 4340

ALLOY STEEL ROUNDS
41L40, 41L47, 41L50, 4150, 4340
Medium Carbon – Heat Treated
Hot Rolled, Cold Finished, Forged & Rough Turned
Quenched, Tempered, Special Straightened & SR

4150 Mod. Meets ASTM A434 Class BC.
41LXX Grades Meet ASTM A322 HR; ASTM A331 CF
4340 Meets ASTM A434 Class BD1

Stock Lengths: HR 16 to 24 Ft. random
CF: thru 1″ – 12 Ft., Over 1″ – 10 to 12 Ft. random

Size
in
Inches
Weight
per Ft.
in Lbs.
HR 41L40 2
41L47
41L50
HR 4150
Mod. RS
Cal-Al
HR & Forged & RT
4150 Cal-Al
Treated
HR 4340
3/8
.376
7/16
.511
1/2
.688
9/16
.845
5/8
1.043
11/16
1.262
3/4
1.502
X
13/16
1.763
7/8
2.045
X
15/16
2.347
X
1
2.670
X
X
1 1/16
3.015
1 1/8
3.380
X
X
X
1 1/4
4.172
X
X
X
1 3/8
5.049
X
X
Size
in
Inches
Weight
per Ft.
in Lbs.
HR 41L40 2
41L47
41L50
HR 4150
Mod. RS
Cal-Al
HR & Forged & RT
4150 Cal-Al
Treated
HR 4340
1 1/2
6.008
X
X
X
1 9/16
6.519
1 5/8
7.051
X
X
1 3/4
8.178
X
X
X
X
1 7/8
9.388
X
X
2
10.680
X
X
X
X
2 1/8
12.060
X
X
X
X
2 1/4
13.520
X
X
X
2 3/8
15.060
X
X
2 1/2
16.690
X
X
X
X
2 5/8
18.400
X
X
2 3/4
20.190
X
X
X
2 7/8
22.070
X
X
2 15/16
23.040
3
24.030
X
X
X
X
Size
in
Inches
Weight
per Ft.
in Lbs.
HR 41L40 2
41L47
41L50
HR 4150
Mod. RS
Cal-Al
HR & Forged & RT
4150 Cal-Al
Treated
HR 4340
3 1/8
26.080
X
X
3 1/4
28.210
X
X
X
3 3/8
30.420
X
3 1/2
32.710
X
X
X
X
3 5/8
35.090
X
X
3 3/4
37.550
X
X
X
4
42.730
X
X
X
4 1/8
45.440
X
4 1/4
48.230
X
X
X
4 1/2
54.080
X
X
X
4 3/4
60.250
X
X
X
5
66.760
X
X
X
5 1/4
73.600
X
X
X
5 1/2
80.780
X
X
X
5 3/4
88.290
X
X
X
Size
in
Inches
Weight
per Ft.
in Lbs.
HR 41L40 2
41L47
41L50
HR 4150
Mod. RS
Cal-Al
HR & Forged & RT
4150 Cal-Al
Treated
HR 4340
6
96.130
X
X
X
6 1/4
104.300
X
X
X
6 1/2
112.800
X
X
X
6 3/4
121.700
X
7
130.900
X
X
X
7 1/4
140.400
X
X
X
7 1/2
150.200
X
X
X
7 3/4
160.400
X
X
8
170.900
X
X
X
8 1/4
181.800
X
X
X
8 1/2
192.900
X
X
8 3/4
204.400
X
9
216.300
X
X
X
9 1/4
228.500
X
9 1/2
245.700
X
X
Size
in
Inches
Weight
per Ft.
in Lbs.
HR 41L40 2
41L47
41L50
HR 4150
Mod. RS
Cal-Al
HR & Forged & RT
4150 Cal-Al
Treated
HR 4340
10
267.000
X
X
10 1/4
287.400
10 1/2
301.500
X
X
11
330.500
X
11 1/2
360.900
12
392.600
12 1/2
425.600
13
460.000
13 1/2
495.700
X
14
532.800
15
610.900
X
16
694.300
18
877.200
20
1081.0
1Stocked as 302 min. BHN
2Material that is rough turned is up to ¼” oversize for machining to nominal size shown. Forgings sizes over 10″ are not Cal-Al treated.
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