|
|
Specifications |
Chemical Composition |
Min.
U.T.S. on
Drawingt
kg/mm2 |
Mechanical Properties
after heat treatment |
Typical
Applications |
|
U.T.S |
Y.S. |
Elong.
%
min. |
|
C |
Sl |
Mn |
S |
P |
Ni |
Cr |
Mo |
Pb |
kg/mm2
min.
|
| MILD
STEELS |
| IS |
226 |
0.25 max |
- |
- |
0.055 max |
0.055 max |
- |
- |
- |
- |
40
|
- |
- |
- |
Shafts, clutch and brake housings, stay bolts brake pedal levers, gear selectors, commutator screws.
|
| BS |
En3B |
0.25 max |
0.35 max |
1.00 max |
0.060 max |
0.060 max |
- |
- |
- |
- |
44 |
- |
17 |
| DIN |
St37 |
0.20 max |
- |
- |
0.050 max |
0.060 max |
- |
- |
- |
- |
44 |
- |
17 |
| JIS |
S20C |
0.18/0.23 |
0.15/0.35 |
0.30/0.60 |
0.035 max |
0.030 max |
- |
- |
- |
- |
75 |
- |
12 |
| AISI |
1020 |
0.18/0.23 |
0.15/0.35 |
0.30/0.60 |
0.050 max |
0.040 max |
- |
- |
- |
- |
75 |
- |
12 |
| CARBON
STEELS |
| IS |
15C8 |
0.10/0.20 |
0.15/0.35 |
0.60/0.90 |
0.045 max |
0.045 max |
- |
- |
- |
- |
45
|
50 |
- |
17 |
Light duty gears, worms, collets, selector forks, ratchets, tappets, bushes and spindles.
|
| BS |
En32B |
0.10/0.18 |
0.05/0.35 |
0.60/1.00 |
0.070 max |
0.050 max |
- |
- |
- |
- |
50 |
- |
20 |
| DIN |
Ck15 |
0.12/0.18 |
0.15/0.35 |
0.30/0.60 |
0.035 max |
0.035 max |
- |
- |
- |
- |
70 |
- |
12 |
| JIS |
S15C |
0.13/0.18 |
0.15/0.35 |
0.30/0.60 |
0.035 max |
0.030 max |
- |
- |
- |
- |
70 |
- |
12 |
| AISI |
1018 |
0.15/0.20 |
0.15/0.30 |
0.60/0.90 |
0.050 max |
0.040 max |
- |
- |
- |
- |
72 |
- |
12 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| IS |
45C8 |
0.42/0.50 |
0.15/0.35 |
0.60/0.90 |
0.035 max |
0.035 max |
- |
- |
- |
- |
62
|
60 |
38 |
15 |
Dynamos and motor shafts, heat treated bolts, connecting rods and crankshafts.
|
| BS |
En8D |
0.40/0.45 |
0.05/0.35 |
0.70/0.90 |
0.060 max |
0.060 max |
- |
- |
- |
- |
63 |
44 |
- |
| DIN |
Ck45 |
0.42/0.50 |
0.15/0.35 |
0.50/0.80 |
0.035 max |
0.035 max |
- |
- |
- |
- |
65 |
40 |
14 |
| JIS |
S45C |
0.42/0.48 |
0.15/0.35 |
0.60/0.90 |
0.035 max |
0.030 max |
- |
- |
- |
- |
65 |
40 |
14 |
| AISI |
1045 |
0.43/0.50 |
0.15/0.30 |
0.60/0.90 |
0.050 max |
0.040 max |
- |
- |
- |
- |
65 |
14 |
14 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| IS |
55C8 |
0.50/0.57 |
0.10/0.35 |
0.60/0.90 |
0.035 max |
0.035 max |
- |
- |
- |
- |
75
|
70 |
46 |
13 |
Sprockets and springs, cylinders, cams, keys, crankshafts, small gears, machine tools and balls for ball mills.
|
| BS |
En9 |
0.50/0.60 |
0.05/0.35 |
0.50/0.80 |
0.060 max |
0.060 max |
- |
- |
- |
- |
72 |
44 |
14 |
| DIN |
Ck55 |
0.52/0.60 |
0.15/0.35 |
0.60/0.90 |
0.035 max |
0.035 max |
- |
- |
- |
- |
75 |
48 |
12 |
| JIS |
S55C |
0.52/0.58 |
0.15/0.35 |
0.60/0.90 |
0.035 max |
0.030 max |
- |
- |
- |
- |
75 |
48 |
12 |
| AISI |
1055 |
0.50/0.60 |
0.15/0.30 |
0.60/0.90 |
0.050 max |
0.040 max |
- |
- |
- |
- |
75 |
48 |
12 |
| FREE CUTTING
STEELS |
| IS |
11C10S25 |
0.08/0.15 |
0.10 max |
0.80/1.20 |
0.20/0.30 |
0.060 max |
- |
- |
- |
- |
42
|
40 |
- |
20 |
Light duty studs, cycle components and many intricate parts of textile and printing machinery.
|
| BS |
En 1A |
0.07/0.15 |
0.10 max |
0.80/1.20 |
0.20/0.30 |
0.070 max |
- |
- |
- |
- |
40 |
- |
20 |
| DIN |
9S Mn28 |
0.14 max |
0.05 max |
0.90/1.30 |
0.24/0.32 |
0.10 max |
- |
- |
- |
- |
35 |
- |
20 |
| JIS |
SUM21 |
0.13 max |
0.10 max |
0.70/1.00 |
0.16/0.23 |
0.07/0.12 |
- |
- |
- |
- |
35 |
- |
20 |
| AISI |
1212 |
0.13 max |
0.10 max |
0.70/1.00 |
0.16/0.23 |
0.07/0.12 |
- |
- |
- |
- |
35 |
- |
20 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| IS |
11C10S25(L) |
0.08/0.15 |
0.10 max |
0.80/1.20 |
0.20/0.30 |
0.060 max |
- |
- |
- |
0.15/0.30 |
42
|
- |
- |
- |
Light duty studs, cycle components and many intricate parts of textile and printing machinery.
|
| BS |
En 1A(L) |
0.07/0.15 |
0.10 max |
0.80/1.20 |
0.20/0.30 |
0.070 max |
- |
- |
- |
0.15/0.30 |
- |
- |
- |
| DIN |
9S Mn Pb28 |
0.14 max |
0.05 max |
0.90/1.30 |
0.24/0.32 |
0.10 max |
- |
- |
- |
0.15/0.30 |
- |
- |
- |
| JIS |
SUM24(L) |
0.15 max |
0.10 max |
0.85/1.15 |
0.26/0.35 |
0.04/0.09 |
- |
- |
- |
0.10/0.35 |
- |
- |
- |
| AISI |
12L14 |
0.15 max |
0.10 max |
0.85/1.15 |
0.26/0.35 |
0.04/0.09 |
- |
- |
- |
0.15/0.35 |
- |
- |
- |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| IS |
40C10S18 |
0.35/0.45 |
0.25 max |
0.80/1.20 |
0.14/0.22 |
0.060 max |
- |
- |
- |
- |
50
|
60 |
38 |
17 |
Dynamos and motor shafts, heat treated bolts, connecting rods and crankshafts.
|
| BS |
En8M |
0.35/0.45 |
0.25 max |
1.00/1.30 |
0.12/0.20 |
0.060 max |
- |
- |
- |
- |
55 |
- |
20 |
| DIN |
35S20 |
0.32/0.39 |
0.10/0.40 |
0.50/0.90 |
0.15/0.25 |
0.060 max |
- |
- |
- |
- |
55 |
33 |
13 |
| JIS |
SUM41 |
0.32/0.39 |
0.15/0.35 |
1.35/1.65 |
0.08/0.13 |
0.040 max |
- |
- |
- |
- |
65 |
38 |
13 |
| AISI |
1141 |
0.37/0.45 |
0.15/0.30 |
1.35/1.65 |
0.08/0.13 |
0.040 max |
- |
- |
- |
- |
65 |
38 |
13 |
| MANGANESE CHROMIUM
STEELS |
| IS |
17Mn1Cr95 |
0.14/0.19 |
0.10/0.35 |
1.00/1.30 |
0.050 max |
0.035 max |
- |
0.80/1.10 |
- |
- |
53
|
80 |
- |
10 |
Gears, gudgeon pins, shafts, carnshafts, levers, clutch plates and small arm components.
|
| BS |
- |
- |
- |
- |
- |
- |
- |
- |
- |
- |
- |
- |
- |
| DIN |
18MnCr5 |
0.14/0.19 |
0.15/0.40 |
1.00/1.30 |
0.035 max |
0.035 max |
- |
0.80/1.10 |
- |
- |
80 |
- |
10 |
| JIS |
SmnC21 |
0.17/0.23 |
0.15/0.35 |
1.20/1.50 |
0.030 max |
0.030 max |
- |
0.35/0.70 |
- |
- |
85 |
- |
13 |
| AISI |
- |
- |
- |
- |
- |
- |
- |
- |
- |
- |
- |
- |
- |
| CHROMIUM
STEELS |
| IS |
40Cr4 |
0.38/0.44 |
0.10/0.35 |
0.60/0.90 |
0.035 max |
0.035 max |
- |
0.90/1.20 |
- |
- |
65
|
80 |
56 |
16 |
Valves, gears, connecting rods, spanners, hammers and similar small tools, agricultural
machinery parts, elevator links and pins.
|
| BS |
En18 |
0.35/0.45 |
0.10/0.35 |
0.60/0.95 |
0.050 max |
0.050 max |
- |
0.85/1.15 |
- |
- |
70 |
- |
16 |
| DIN |
41Cr4 |
0.38/0.44 |
0.15/0.35 |
0.50/0.80 |
0.035 max |
0.035 max |
- |
0.90/1.20 |
- |
- |
100 |
80 |
11 |
| JIS |
SCr4 |
0.38/0.43 |
0.15/0.35 |
0.60/0.85 |
0.030 max |
0.030 max |
- |
0.90/1.20 |
- |
- |
95 |
80 |
13 |
| AISI |
5140 |
0.38/0.43 |
0.15/0.35 |
0.70/0.90 |
0.040 max |
0.035 max |
- |
0.70/0.90 |
- |
- |
95 |
80 |
13 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| IS |
103Cr1 |
0.95/1.10 |
0.15/0.35 |
0.25/0.45 |
0.025 max |
0.025 max |
- |
0.90/1.20 |
- |
- |
70
|
95 |
- |
9 |
Ball and roller bearings, bearings rings, blanking and forming tools, punches, cams, knurling
tools, fuel, nozzles, snear blades and pawls.
|
| BS |
En31 |
0.90/1.20 |
0.10/0.35 |
0.30/0.75 |
0.050 max |
0.050 max |
- |
1.00/1.60 |
- |
- |
100 |
- |
8 |
| DIN |
100Cr6 |
0.95/1.10 |
0.15/0.35 |
0.20/0.40 |
0.030 max |
0.030 max |
- |
1.30/1.65 |
- |
- |
120 |
98 |
5 |
| JIS |
SUJ2 |
0.95/1.10 |
0.15/0.35 |
0.50 max |
0.025 max |
0.025 max |
- |
1.30/1.60 |
- |
- |
110 |
94 |
8 |
| AISI |
52100 |
0.98/1.10 |
0.15/0.30 |
0.25/0.45 |
0.025 max |
0.025 max |
- |
1.30/1.60 |
- |
- |
120 |
98 |
5 |
| CHROMIUM MOLYBDENUM
STEELS |
| IS |
40Cr4Mo3 |
0.38/0.45 |
0.10/0.35 |
0.50/0.80 |
0.035 max |
0.035 max |
- |
0.90/1.20 |
0.20/0.35 |
- |
65
|
80 |
56 |
15 |
Axle shafts, crank shafts, high tensile bolts and studs, gears, propeller, shaft joints,
induction hardened track pins.
|
| BS |
En19 |
0.35/0.45 |
0.10/0.35 |
0.50/0.80 |
0.050 max |
0.050 max |
- |
0.90/1.50 |
0.20/0.40 |
- |
70 |
- |
15 |
| DIN |
42CrMo4 |
0.38/0.45 |
0.15/0.35 |
0.50/0.80 |
0.035 max |
0.035 max |
- |
0.90/1.20 |
0.15/0.25 |
- |
110 |
90 |
10 |
| JIS |
SCM4 |
0.38/0.43 |
0.15/0.35 |
0.60/0.85 |
0.030 max |
0.030 max |
- |
0.90/1.20 |
0.15/0.30 |
- |
100 |
85 |
12 |
| AISI |
4140 |
0.38/0.43 |
0.15/0.30 |
0.75/1.00 |
0.040 max |
0.035 max |
- |
0.80/1.10 |
0.15/0.25 |
- |
102 |
87 |
11 |
| CHROMIUM NICKEL MOLYBDENUM
STEELS |
| IS |
40Ni6Cr4Mo3 |
0.36/0.45 |
0.10/0.35 |
0.40/0.70 |
0.035 max |
0.035 max |
1.25/1.75 |
0.90/1.30 |
0.20/0.35 |
- |
70
|
80 |
56 |
14 |
High duty engine connecting rods, high temperature applications, parts of machine tools such
as spindle gear, power transmission gears.
|
| BS |
En24 |
0.35/0.45 |
0.10/0.35 |
0.45/0.70 |
0.050 max |
0.050 max |
1.30/1.80 |
0.90/1.40 |
0.20/0.35 |
- |
80 |
- |
14 |
| DIN |
34CrNiMo6 |
0.30/0.38 |
0.15/0.40 |
0.40/0.70 |
0.035 max |
0.035 max |
1.40/1.70 |
1.40/1.70 |
0.15/0.30 |
- |
120 |
100 |
9 |
| JIS |
SNCM8 |
0.36/0.43 |
0.15/0.35 |
0.60/0.90 |
0.030 max |
0.030 max |
1.60/2.00 |
0.60/1.00 |
0.15/0.30 |
- |
100 |
90 |
16 |
| AISI |
4340 |
0.38/0.43 |
0.15/0.30 |
0.60/0.80 |
0.040 max |
0.035 max |
1.65/2.00 |
0.70/0.90 |
0.20/0.30 |
- |
105 |
95 |
14 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| IS |
16Ni80Cr60 |
0.12/0.20 |
0.10/0.35 |
0.60/1.00 |
0.050 max |
0.035 max |
0.60/1.00 |
0.40/0.80 |
- |
- |
55
|
70 |
- |
15 |
Gears, gudgeon pins, shafts, levers, camshafts and clutch plates.
|
| BS |
En351 |
0.20 max |
0.35 max |
0.60/1.00 |
0.050 max |
0.050 max |
0.60/1.00 |
0.40/0.80 |
0.10 max |
- |
70 |
- |
18 |
| DIN |
- |
- |
- |
- |
- |
- |
- |
- |
- |
- |
- |
- |
- |
| JIS |
SNCM22 |
0.12/0.18 |
0.15/0.35 |
0.40/0.70 |
0.030 max |
0.030 max |
1.60/2.00 |
0.40/0.65 |
0.15/0.30 |
- |
90 |
- |
16 |
| AISI |
8620 |
0.18/0.23 |
0.15/0.30 |
0.70/0.90 |
0.040 max |
0.035 max |
0.40/0.70 |
0.40/0.60 |
0.15/0.25 |
- |
80 |
- |
17 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| IS |
15NiCr1Mo12 |
0.12/0.18 |
0.10/0.35 |
0.60/1.00 |
0.050 max |
0.035 max |
1.00/1.50 |
0.75/1.25 |
0.08/0.15 |
- |
58
|
100 |
- |
9 |
Heavy duty gears, shafts, pinions, rocker arms, push rod leads, bushses, camshafts and gudgeon pins.
|
| BS |
En353 |
0.20 max |
0.35 max |
0.50/1.00 |
0.050 max |
0.050 max |
1.00/1.50 |
0.75/1.25 |
0.08/0.15 |
- |
100 |
- |
12 |
| DIN |
15CrNi6 |
0.12/0.17 |
0.15/0.40 |
0.40/0.60 |
0.035 max |
0.035 max |
1.40/1.70 |
1.40/1.70 |
- |
- |
90 |
- |
9 |
| JIS |
- |
- |
- |
- |
- |
- |
- |
- |
- |
- |
- |
- |
- |
| AISI |
- |
- |
- |
- |
- |
- |
- |
- |
- |
- |
- |
- |
- |
| |
|
|