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Ameralloy-5

Ameralloy-5 is formulated primarily for use in pneumatic and shock tools, and well suited to shock resistant parts in which a combination of great ductility and hardness is required. Carbon tool steels under Rockwell C 60 cannot compare in shock resistance to the alloyed grades. Ameralloy-5 is normally oil-quenched, particularly when machining intricate parts using Ameralloy-5.
Quenching in water produces satisfactory results, but additional care should be taken if the part has drastic sectional changes or sharp corners.

Typical Analysis

  • Carbon .60
  • Manganese .85
  • Vanadium .25
  • Silicon 2.00
  • Molybdenum .50

Applications

  • Asphalt cutters
  • Beading tools
  • Caulking tools
  • Moil points
  • Pavement breakers
  • Pneumatic chipping chisels
  • Punches
  • Rivet busters
  • Rivet sets
  • Shear blades

Features And Advantages

Maximum shock resistance for hardness in the range of Rockwell C 58–60

Good wear resistance

Oil and water hardening

General Instructions

Forging Heat Ameralloy-5 to 1850°–1950°F and do not forge below 1650°F. Ameralloy-5 is subject to decarburization, and therefore should not be held at the forging temperature longer than necessary. After forging, the steel should be cooled slowly in a heat-insulating material such as dry ashes, dry lime, or vermiculite.

Heat Treatment

Forging 1850°–1950°F, stop at 1650°F

Annealing 1450°F, furnace-cool. Brinell 229 max.

Hardening 1600°F, oil-quench or water-quench

Tempering 400°– 650°F, average hardness after heat treatment Rockwell C 57–61

Annealing Pack-annealing in sealed containers using inert material is preferable because of the decarburization tendency of this steel. Otherwise, controlled-atmosphere furnaces may be used. Heat slowly to 1450°F, and hold for 1 hour per inch of greatest thickness. To obtain optimal machining properties, Ameralloy-5 should be cooled slowly to 1000°F. Careful annealing should result in a hardness of Brinell 229 max.

Hardening Ameralloy-5 is primarily an oil hardening grade, However, satisfactory results can be achieved with water-quenching when the design is not too intricate. Hardening temperature for both oil- and water-quenching is 1600°F. Holding time at hardening heat should be just sufficient for uniformity of temperature. Holding time should not exceed 1/2 hour per inch of greatest thickness because of the danger of excessive decarburization. Temper immediately after quenching.

OIL-QUENCH WATER-QUENCH
Quenching Temperature (°F) Fracture Grain Size Rockwell C Fracture Grain Size Rockwell C
1450- 8 49 8 51
1500- 55 9 59
1550- 61 64
1600- 64 65
1650- 9 63 65

Tempering Temperature should range between 400°–650°F, depending on the service desired. Normal tempering procedure for Ameralloy-5 is to hold at temperature for at least 2 hours per inch of greatest thickness.

 

Resulting Rockwell hardness for tempering oil- and water-quenched 3/4” dia. specimens at various temperatures

Tempering Temperature (°F 1600°F Oil-Quench Rockwell C 1600°F Water-Quench Rockwell C
300° 63 63
400° 61 61
500° 60.5 60
600° 59 59
700° 57.5 57.5
800° 53 53.5
900° 51 51
1000° 49 48
1100° 47 45
1200° 40.5 40
1300° 33.5 33

Available Shapes And Sizes

  • Rounds
  • Squares
  • Flats
  • Octagons
  • Hexagons
  • Billets

Standard lengths 10′-12′ R/L lengths. Other sizes available upon request. Prompt forging service also available.

Rounds Decarb Free Or Hot Rolled Annealed

1/4 1 2 3 4
5/16 1-1/8 2-1/8 3-1/4 4-1/4
3/8 1-1/4 2-1/4 3-1/2 4-1/2
7/16 1-3/8 2-1/2 3-3/4 4-3/4
1/2 1-1/2 2-3/4 5
5/8 1-5/8 5-1/8
3/4 1-3/4 6
7/8 1-7/8

Squares / Octagons

Squares Octagons
3/8
1/2
5/8
3/4
1
1-1/4
1-3/8
1-1/2
1-3/4
2
2-1/2
3
4
1/4
3/8
7/16
1/2
5/8
3/4
7/8
1
1-1/8
1-1/4

Hexagons / Billets

Hexagons Billets
3/8
1/2
5/8
3/4
7/8
1
1-1/8
1-1/4
1-1/2
1/4
3/8
7/16
1/2
5/8
3/4
7/8
Round
Cornered
Square
4
6
8
10

Flats

3/8
x 1
x 1-1/2
x 2
x 5
1/2
x 5/8
x 1
x 1-1/2
x 2
x 2-1/2
x 3
x 6
3/4
x 1
x 1-1/2
x 2
x 2-1/2
x 3
x 4
x 5
1
x 1-1/2
x 2
x 2-1/2
x 3
x 3-1/2
x 4
x 4-1/2
x 5
x 6
1-1/4
x 1-1/2
x 2
x 2-1/2
x 3
x 4
x 5
x 6
1-1/2
x 2
x 2-1/2
x 3
x 3-1/2
x 4
x 4-1/2
x 5
x 5-1/2
x 6
1-3/4
x 4
x 4-1/2
x 5
x 6
2
x 2-1/2
x 3
x 4
x 4-1/2
x 5
x 6
x 8
2-1/2
x 3
x 4
x 4-1/2
x 5
x 6
3
x 4
x 4-1/2
x 5
x 6
x 7
x 8
3-1/2
x 4
x 5
x 6
4
x 4-1/2
x 5
x 6
x 7
x 8

Ameralloy Steel Corporation is a prime supplier of speciality steel bar products and wear-resistant high-impact steel plate. Our full catalogue features speciality steels and standard AISI alloys to meet your demanding applications.

Ameralloy’s precision-forged speciality steels and standard alloys are shipped worldwide with reliable on-time service.

Ameralloy provides engineering services for your steel products. From forging to machining and finishing, our Chicago based steel service centre will manufacture, ship, and deliver your order with unrivalled quality and service

Contact

Tap or Call: +1 (800) 237-0113

Email Project Specification: sales@ameralloy.com