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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