4750 Alloy 48 Alloy 49 Alloy Controlled Expansion & Shielding Alloys: Machinability & Nominal Data

ALLOY 4750ALLOY 48ALLOY 49

ALLOY 4750

4750 Alloy 48 Alloy 49 Alloy Controlled Expansion & Shielding Alloys: Machinability & Nominal Data

Alloys 4750, 48, and 49 are all shielding alloys. 4750 Alloy has high-initial permeability, maximum permeability, and low core loss. Alloy 49 is a nickel-iron alloy that has the highest saturation flux density out of any other nickel-iron alloy. It’s a versatile alloy that can be used in many applications such as instrument transformers and magnetic shields. It’s moderately resistant against weather and moisture corrosion. These alloys are often used in the aircraft and aerospace industry.

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TYPICAL NOMINAL CHEMISTRY
NICKEL (NI) 48.0
CHROMIUM(CR) 0.10
MANGANESE(MN) 0.80
SILICON (SI) 0.30
CARBON (C) 0.05
PHOSPHORUS (P) 0.025
SULFUR (S) 0.025
IRON BALANCE


TYPICAL TENSILE STRENTGH
ANNEALED 85,000 MAX
1/4 HARD 90,000 TO 115,000
1/2 HARD 105,000 TO 125,000
HARD 120,000 MIN.


TYPICAL HARDNESS, ROCKWELL B
ANNEALED 70 MAX
1/4 HARD 78 TO 83
1/2 HARD 84 TO 88



TYPICAL LINEAR COEFFICIENT OF THERMAL EXPANSION
(cm per cm C x 10-6)
30 to 100 9.4
30 to 200 9.4
30 to 300 8.8
30 to 350 9.0
30 to 400 8.7
30 to 425 8.9
30 to 450 9.0
30 to 500 9.4
30 to 550 10.2
30 to 600 10.4
30 to 700 11.3
30 to 800 12.1
30 to 900 13.0
30 to 1000 13.9

* PLEASE NOTE THIS IS A NOMINAL DATA SHEET


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ALLOY 48

NOMINAL DATA SHEET


TYPICAL NOMINAL CHEMISTRY
NICKEL (NI) 48.0
CHROMIUM(CR) 0.10
MANGANESE(MN) 0.80
SILICON (SI) 0.30
CARBON (C) 0.05
PHOSPHORUS (P) 0.025
SULFUR (S) 0.025
IRON BALANCE


TYPICAL TENSILE STRENTGH
ANNEALED 85,000 MAX
1/4 HARD 90,000 TO 115,000
1/2 HARD 105,000 TO 125,000
HARD 120,000 MIN.


TYPICAL HARDNESS, ROCKWELL B
ANNEALED 70 MAX
1/4 HARD 78 TO 83
1/2 HARD 84 TO 88



TYPICAL LINEAR COEFFICIENT OF THERMAL EXPANSION
(cm per cm C x 10-6)
30 to 100 9.4
30 to 200 9.4
30 to 300 8.8
30 to 350 9.0
30 to 400 8.7
30 to 425 8.9
30 to 450 9.0
30 to 500 9.4
30 to 550 10.2
30 to 600 10.4
30 to 700 11.3
30 to 800 12.1
30 to 900 13.0
30 to 1000 13.9

* PLEASE NOTE THIS IS A NOMINAL DATA SHEET


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ALLOY 49

NOMINAL DATA SHEET


TYPICAL NOMINAL CHEMISTRY
NICKEL (NI) 48.0
CHROMIUM(CR) 0.10
MANGANESE(MN) 0.80
SILICON (SI) 0.30
CARBON (C) 0.05
PHOSPHORUS (P) 0.025
SULFUR (S) 0.025
IRON BALANCE


TYPICAL TENSILE STRENTGH
ANNEALED 85,000 MAX
1/4 HARD 90,000 TO 115,000
1/2 HARD 105,000 TO 125,000
HARD 120,000 MIN.


TYPICAL HARDNESS, ROCKWELL B
ANNEALED 70 MAX
1/4 HARD 78 TO 83
1/2 HARD 84 TO 88



TYPICAL LINEAR COEFFICIENT OF THERMAL EXPANSION
(cm per cm C x 10-6)
30 to 100 9.4
30 to 200 9.4
30 to 300 8.8
30 to 350 9.0
30 to 400 8.7
30 to 425 8.9
30 to 450 9.0
30 to 500 9.4
30 to 550 10.2
30 to 600 10.4
30 to 700 11.3
30 to 800 12.1
30 to 900 13.0
30 to 1000 13.9

* PLEASE NOTE THIS IS A NOMINAL DATA SHEET


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