AISI 1141 Carbon Steel (UNS G11410)

Sep 13 2012

Topics Covered

Introduction
Chemical Composition
Physical Properties
Mechanical Properties
Thermal Properties
Other Designations

Introduction

Carbon steels contain carbon as the primary alloying element. Small quantities of molybdenum, chromium, nickel, aluminium, and copper are also present in these steels. They contain 0.4% silicon and 1.2% manganese. They are designated by AISI four-digit numbers.

The following datasheet gives an overview of AISI 1141 carbon steel.

Chemical Composition

The chemical composition of AISI 1141 carbon steel is tabulated below.

Element Content (%)
Iron, Fe 97.73 - 98.2
Manganese, Mn 1.35 - 1.65
Carbon, C 0.370 - 0.45
Sulfur, S 0.080 - 0.13
Phosphorous, P  0.040

Physical Properties

The following table shows the physical properties of AISI 1141 carbon steel.

Properties Metric Imperial
Density 7.85 g/cm3 0.284 lb/in³

Mechanical Properties

The mechanical properties of cold drawn AISI 1141 carbon steel are outlined in the following table.

Properties Metric Imperial
Tensile strength 675 MPa 97900 psi
Yield strength 360 MPa 52200 psi
Izod impact 11 J 8.11 ft-lb
Bulk modulus (typical for steel) 140 GPa 20300 ksi
Shear modulus (typical for steel) 80 GPa 11600 ksi
Elastic modulus 190-210 GPa 27557-30458 ksi
Poisson's ratio 0.27-0.30 0.27-0.30
Elongation at break (in 50 mm) 22% 22%
Reduction of area 38% 38%
Hardness, Brinell 192 192
Hardness, Knoop (converted from Brinell hardness) 214 214
Hardness, Rockwell B (converted from Brinell hardness) 91 91
Hardness, Rockwell C (converted from Brinell hardness. Value below normal HRC range, for comparison purposes only) 11 11
Hardness, Vickers (converted from Brinell hardness) 201 201

Thermal Properties

The thermal properties of AISI 1141 carbon steel are given in the following table.

Thermal Properties Metric Imperial
Thermal conductivity (typical for steel) 49.8 W/mK 346 BTU in/hr.ft².°F

Other Designations

Other designations that are equivalent to AISI 1141 carbon steel include:

  • ASTM A108 (1141)
  • ASTM A29 (1141)
  • ASTM A311 (1141)
  • ASTM A510 (1141)
  • ASTM A576 (1141)
  • SAE J1397 (1141)
  • SAE J403 (1141)
  • SAE J412 (1141)
  • ASTM A107
  • FED QQ-S-637
  • SAE J414

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