Super Alloy Alloy 49 is stocked by 9 North American distributors and produced by 7 large mills. Distributors will offer small quantity buys while mills will generally only sell large quantities, with delivery times anywhere from 10 to 50 weeks depending on size and form required
This material is stocked primarily in Flat Rolled Products by 6 distributors but is also available to a lesser extent in Bar Products, Casting Products, Forging Products, Tubular Products, and Wire Products.
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For mill (large volume) production click here
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Specifications
The following specifications cover Super Alloy Alloy 49
Property Results
Related Metals:
- High Permeability 49(tm)
- High Perm 49(tm)
Chemistry Data : [top]
Carbon
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Iron
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Balance |
Manganese
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Nickel
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Silicon
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Principal Design Features
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This is an alloy of nickel and iron with the chemistry controlled for magnetic properties.
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Applications
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Used for transformer cores, solenoid cores, and magnetic shielding. The alloy is available in 3 distinct grades, depending upon product form and intended end application. 1. Strip, Rotor Grade -- with non-directional magnetic properties. 2. Strip, Transformer Grade. 3. Bar, wire, rod and general purpose (shielding) strip.
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Machinability
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The alloy is similar to the austenitic (300 series) stainless steels in machining behavior. Sulfur containing cutting oils should be avoided as they may contaminate the alloy. A "Free-machining" grade is available for high production runs involving machining from bar stock.
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Forming
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The alloy has good ductility and can be formed by standard means.
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Welding
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Welding by conventional methods is appropriate for this alloy.
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Heat Treatment
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Not heat-treatable for strengthening. May be annealed at 2150 F in dry hydrogen for 4 hours, followed by furnace cooling at 150 F/hour to 800 F then air cool. A strain relief anneal, following cold working, may also be done at 1500 F for 1/2 hour in dry hydrogen or inert gas atmosphere.
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Forging
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Forging should be done at a temperature of 2150 F.
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Cold Working
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The alloy is readily cold worked. Deep drawing grade should be specified for that forming operation and annealed grade for general forming.
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Annealing
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See "Heat Treat".
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Tempering
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See "Heat Treat" for strain relief anneal.
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Hardening
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Hardens due to cold working only.
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Other Mechanical Props
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Cold Worked & Heat Treated Condition:
Tensile-ksi Yield-ksi Elong. %
Bar-cold drawn 95 80 25
Bar-2150 F anneal 70 22 45
Strip-cold rolled 130 -- 5
Strip-deep draw grade 80 -- 32
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Physical Data : [top]
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Density (lb / cu. in.)
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0.295
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Specific Gravity
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8.18
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Specific Heat (Btu/lb/Deg F - [32-212 Deg F])
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0.12
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Electrical Resistivity (microhm-cm (at 68 Deg F))
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290
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Melting Point (Deg F)
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2600
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Thermal Conductivity
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90
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Mean Coeff Thermal Expansion
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4.6
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Reduction of Area
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68
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Mechanical Data : [top]
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MSO currently has no data available for this grade.
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Videos :
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MSO currently has no videos available for this grade.
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Disclaimer
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This publication may include technical inaccuracies or typographical errors. Changes may be periodically made to the information herein.
