SAE 4140 Alloy Steel
Grade Introduction:
SAE 4140 Alloy Steel Round Bars are cold drawn annealed steel of comparatively superior hardenability in the company of its chromium content that offers some excellent hardness infiltration, and the molybdenum imparts consistency of soaring potency and hardness. These SAE 4140 Alloy Cold Rolled Round Bars reacts well to heat-treatment and is quite simple to machine in the annealed state.
Equivalent Grades
USA |
Din |
BS |
BS |
Japan |
ASTM A29 |
DIN 1654 |
EN 10084 |
BS 970 |
JIS G4103 |
4140 |
1.6523/21NiCrMo2 |
1.6523/21NiCrMo2-2 |
805M20 |
SNCM220 |
Addition to other grades
MS, EN1A, EN3B, EN8, EN8D, EN9, EN19, EN24, EN31, EN32B, EN36C, EN41B, EN43B, EN47, EN353, IS2062, 42Crmo4, HCHCR, D2, D3, H-11, H-13, CW-1, OHNS, M2, M35, M42, DIN1.2714, P20, P20+S, P20+Ni, SCM420, ASTMSA-36, ASTMSA-105, SAE1018, SAE4140, SAE8620, 16MNCR5, 20MNCR5, C20, C45, C50, C60, CK45, 20C8, 40C8, 45C8, 55C8, C55MN75, SAE52100, S40C, S355J2G3.
Our Supply Range
We supply to automotive ancillaries and OEM customers. The products we manufacture are used as input for manufacturing of automotive and general engineering components. These components are further assembled into systems fitted in automobiles and other engineering applications.
| Supply Condition | SECTION | Size (MM) | |
|---|---|---|---|
| Min | Max | ||
| Cold Drawn | Round | Ø8 | Ø70 |
| Hexagon | 8 A/F | 27 A/F | |
| Centerless Peeled | Round | Ø10 | Ø70 |
| Centerless Ground | Round | Ø8 | Ø70 |
Chemical Composition
The following table shows the chemical composition of SAE 4140 steel:
Standard |
Grade |
C |
Si |
Mn |
P |
S |
Cr |
Mo |
ASTM A29 |
4140 |
0.38-0.43 |
0.15-0.35 |
0.75-1.00 |
0.035 |
0.040 |
0.8-1.10 |
0.15-0.25 |
EN 10250 |
42CrMo4 / 1.7224 |
0.38-0.45 |
0.4 |
0.6-0.9 |
0.035 |
0.035 |
0.9-1.2 |
0.15-0.30 |
JIS G4105 |
SCM 440 |
0.38-0.43 |
0.15-0.35 |
0.60-0.85 |
0.03 |
0.03 |
0.9-1.2 |
0.15-0.30 |
Supply Cities
Ambattur, Bangalore, Chennai, Coimbatore, Dindigul, Guindy, Madurai, Nellore, Hyderabad, Tirupur, Tuticorin, Madurai, Andhra Pradesh, Karnataka, Puducherry, Kerala, Kanyakumari, Telangana, Salem, Thanjavur, Trichy, Erode, Vellore, Karur, Nagercoil, Kanchipuram, Karaikudi, Pudukottai, Nagapattinam.
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