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AISI 6150 Alloy Steel (UNS G61500)

Alloy steels are designated by AISI four-digit numbers. They are more susceptible to mechanical and heat treatments than carbon steels. They comprise different types of steels with compositions which exceed the limitations of B, C, Mn, Mo, Ni, Si, Cr, and Va in the carbon steels.
The datasheet given below provides more details about AISI 6150 alloy steel.
MACHINABILITY RATINGS
APPROXIMATE SURF. FT. PER MIN.
100
Percent RELATIVE SPEED BASED ON C-1212 as 100 Percent
60
Annealing:
AISI 6150 alloy steel is annealed at 843°C (1550°F) and then air cooled.
Chemical Composition The chemical composition of AISI 6150 alloy steel is listed in the following table.
Element | Content (%) |
Iron, Fe | 97.095 – 97.72 |
Chromium, Cr | 0.800 – 1.10 |
Manganese, Mn | 0.7 – 0.9 |
Carbon, C | 0.480 – 0.530 |
Silicon, Si | 0.150 – 0.3 |
Vanadium, V | ≥ 0.150 |
Sulfur, S | ≤ 0.04 |
Phosphorous, P | ≤ 0.0350 |
Density:
0.284 lb/in³
Thermal Properties:
323 BTU in/hr.ft2. °F
Welding:
AISI 6150 alloy steel can be welded using any common welding methods. However, preheating and post weld stress relieving have to performed for welding this steel.
Heat Treatment:
AISI 6150 alloy steel is hardened at 871°C (1600°F). This steel is tempered followed by normalizing at 899°C (1650°F) and then air cooled.
Forging:
Forging of 6150 alloy steel is performed at 1204°C (2200°F).
Mechanical Properties The mechanical properties of AISI 6150 alloy steel are outlined in the following table.
Properties | Imperial | |
Tensile strength, ultimate | 97200 psi | |
Tensile strength, yield | 60200 psi | |
Izod impact | 19.9 ft-lb | |
Modulus of elasticity | 27557-30458 ksi | |
Shear modulus (typical for steel) | 11600 ksi | |
Bulk modulus (typical for steel) | 20300 ksi | |
Poissons ratio (calculated) | 0.27-0.30 | |
Elongation at break (in 50 mm) | 23% | |
Hardness, Brinell | 197 | |
Hardness, Vickers (converted from Brinell hardness) | 207 | |
Hardness, Knoop (converted from Brinell hardness) | 219 | |
Hardness, Rockwell B (converted from Brinell hardness) | 92 | |
Hardness, Rockwell C (converted from Brinell hardness, value below normal HRC range, for comparison purposes only) | 13 | |
Machinability (annealed and cold drawn. Based on 100% machinability for AISI 1212 steel) | 55 |
Inventory:
In Stock
Other Designations:
BAR/WIRE: | SHEET/STRIP: | PLATE: |
AMS-6448 AMS-6450 ASTM-A 304 ASTM-A 322 MIL-S-8503 | AMS-6455 | AMS-6455 |
TUBE: | PIPE: | FORGINGS: |
N/A | N/A | AMS-6448 |
Applications:
The following are the major applications of 6150 alloy steel: Shafts Gears Pinions
If you need more details about this product or would like to place an order, please call us!
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AISI 6150 Alloy Steel (UNS G61500)

Alloy steels are designated by AISI four-digit numbers. They are more susceptible to mechanical and heat treatments than carbon steels. They comprise different types of steels with compositions which exceed the limitations of B, C, Mn, Mo, Ni, Si, Cr, and Va in the carbon steels.
The datasheet given below provides more details about AISI 6150 alloy steel.
MACHINABILITY RATINGS
APPROXIMATE SURF. FT. PER MIN.
100
Percent RELATIVE SPEED BASED ON C-1212 as 100 Percent
60
Annealing:
AISI 6150 alloy steel is annealed at 843°C (1550°F) and then air cooled.
Chemical Composition The chemical composition of AISI 6150 alloy steel is listed in the following table.
Element | Content (%) |
Iron, Fe | 97.095 – 97.72 |
Chromium, Cr | 0.800 – 1.10 |
Manganese, Mn | 0.7 – 0.9 |
Carbon, C | 0.480 – 0.530 |
Silicon, Si | 0.150 – 0.3 |
Vanadium, V | ≥ 0.150 |
Sulfur, S | ≤ 0.04 |
Phosphorous, P | ≤ 0.0350 |
Density:
0.284 lb/in³
Thermal Properties:
323 BTU in/hr.ft2. °F
Welding:
AISI 6150 alloy steel can be welded using any common welding methods. However, preheating and post weld stress relieving have to performed for welding this steel.
Heat Treatment:
AISI 6150 alloy steel is hardened at 871°C (1600°F). This steel is tempered followed by normalizing at 899°C (1650°F) and then air cooled.
Forging:
Forging of 6150 alloy steel is performed at 1204°C (2200°F).
Mechanical Properties The mechanical properties of AISI 6150 alloy steel are outlined in the following table.
Properties | Imperial | |
Tensile strength, ultimate | 97200 psi | |
Tensile strength, yield | 60200 psi | |
Izod impact | 19.9 ft-lb | |
Modulus of elasticity | 27557-30458 ksi | |
Shear modulus (typical for steel) | 11600 ksi | |
Bulk modulus (typical for steel) | 20300 ksi | |
Poissons ratio (calculated) | 0.27-0.30 | |
Elongation at break (in 50 mm) | 23% | |
Hardness, Brinell | 197 | |
Hardness, Vickers (converted from Brinell hardness) | 207 | |
Hardness, Knoop (converted from Brinell hardness) | 219 | |
Hardness, Rockwell B (converted from Brinell hardness) | 92 | |
Hardness, Rockwell C (converted from Brinell hardness, value below normal HRC range, for comparison purposes only) | 13 | |
Machinability (annealed and cold drawn. Based on 100% machinability for AISI 1212 steel) | 55 |
Inventory:
In Stock
Other Designations:
BAR/WIRE: | SHEET/STRIP: | PLATE: |
AMS-6448 AMS-6450 ASTM-A 304 ASTM-A 322 MIL-S-8503 | AMS-6455 | AMS-6455 |
TUBE: | PIPE: | FORGINGS: |
N/A | N/A | AMS-6448 |
Applications:
The following are the major applications of 6150 alloy steel: Shafts Gears Pinions
If you need more details about this product or would like to place an order, please call us!

