SAE AISI 1095 Steel, High Carbon Steel Heat Treat, Properties & Hardness

SAE AISI 1095 Steel, 1095 High Carbon Steel

Introduction

SAE AISI 1095 steel is one of the most widely used 10 series steels, with good performance and low cost, with appropriate toughness and wear resistance, but poor corrosion resistance.

Applications

AISI SAE 1095 carbon steel can be made into steel billets, steel powder, which can be used as tool steel, blade steel, spring steel. 1095 high carbon steel uses mainly include chef knife, kitchen knife, pocket knife, Bowie knife, hunting knife, doctor blade, wear parts, various springs, ploughshares, and brake discs.

Datasheet & Specification

Below is material AISI 1095 steel datasheet including chemical composition, density, thermal expansion coefficient, thermal conductivity, yield strength, hardness, etc.

AISI SAE 1095 Chemical Composition

The table below lists AISI 1095 carbon steel chemical composition.

AISI 1095 Chemical Composition (%)
Steel Grade (UNS)CMnP (≤)S (≤)
1095 (G10950)0.90-1.030.30-0.500.0400.050

AISI 1095 Mechanical Properties

SAE AISI 1095 steel mechanical properties are given in the table below.

Steel (UNS)Tensile strength (Mpa)Yield strength (Mpa)Elongation in 50 mm, %Reduction in area, %Hardness (HB)Processing, condition or treatment
AISI 1095 (G10950)8304601025248Hot rolled
6805201040197Spheroidized annealed cold drawn
6553801321192Annealed at 790 °C (1450 °F)
965570918293As-rolled
10155059.514293Normalized at 900 °C (1650 °F)

Cold-rolled strip used for cold formed springs

  • Minimum tensile strength (Tempered), MPa (ksi): 1240-2340 (180-340);
  • Modulus of elasticity, GPa (ksi): 210 (30,000)
  • Annealed Hardness (HRB): 88

AISI SAE 1095 Physical Properties

Notes: 10-6/K = 10-6.K-1 = (µm/m)/°C

1095 carbon steel coefficients of linear thermal expansion
Value (10-6/K)Temperature (°C)Treatment
or condition
11.420-100Annealed
13.00-100Hardened
14.620-650
Material 1095 thermal conductivity
Value (W/m·K)Temperature (°C)
46.7100
Specific Heat of AISI 1095 High Carbon Steel
Value (J/Kg·K)Temperature (°C)
46120-100
Electrical Resistivity of AISI SAE 1095 Steel
Value (μΩ·m)Temperature (°C)
0.1820

SAE 1095 Steel Heat Treatment

The following table shows 1095 steel heat treat and rockwell hardness.

1095 Steel Heat Treatment
1095 Heat TreatTemperature (℃)HardnessCooling/Agent
Normalizing885197 HBAir
Annealing (full annealing of small steel forgings)790-830167-229 HBFurnace cooling (28 °C/h (50 °F/h)
Quenching800-815Water
Tempering (2 hour)20558 HRCWater hardening
26057 HRC
31552 HRC
37047 HRC
42543 HRC
48042 HRC
54041 HRC
59540 HRC
65033 HRC

Normalizing

1095 steel is typically normalized at 843-900 °C (1550-1650℉), and should be cooled in still air.

Full Annealing for Small Steel Forgings

Heat treatment to 790-830 °C (1450-1525 °F), slow cooling from 790 °C (1450 °F) at a rate of 28 °C (58 °F)/hour to 655 °C (1215 °F).

Tempering

Tempering temperature of 1095 steel can be from 204-649 °C (400-1200°F) after normalizing and water quenching, and the corresponding Rockwell hardness can be obtained.

Austenitizing

The austenitizing of 1095 steel is often carried out under the induction hardening process of the workpiece at a temperature of 790-815 ° C (1450-1500 ° F), and the quenching medium is water or brine. If oil quenching is used, the austenitizing temperature is 815-870 °C (1500-1600 °F).

Equivalent Grade

AISI 1095 high carbon steel equivalent to European EN (Germany DIN EN, British BSI, French NF…), Chinese GB and Japanese JIS standard.

AISI 1095 equivalent
USAGermanyChinaJapanISO
StandardGrade (UNS)StandardGradeStandardGrade (Steel Number)StandardGradeStandardGradeStandardGrade
AISI;
SAE;
ASTM A29/A29M
1095 (G10950)AMS5121F, 5122F, 5132GDIN 17222Ck101
(1.1274)
GB/T 1298, GB/T 3278, GB/T 5952T10JIS G4801SUP4

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