Stainless Steel Greek Ascoloy(tm) is stocked by 11 North American distributors and produced by 8 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 Bar Products by 7 distributors but is also available to a lesser extent in Flat Rolled Products, Wire Products, and Forging Products.
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Specifications
The following specifications cover Stainless Steel Greek Ascoloy(tm)
- AISI 615
- AMS 5508
- AMS 5616
- ASTM A565 (615)
- UNS S41800
Property Results
Chemistry Data : [top]
Carbon
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0.15 - 0.2 |
Chromium
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12 - 14 |
Iron
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Balance |
Manganese
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0.5 max |
Molybdenum
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0.5 max |
Nickel
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1.8 - 2.2 |
Phosphorus
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0.03 max |
Silicon
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0.5 max |
Sulphur
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0.03 max |
Tungsten
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2.5 - 3.5 |
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Principal Design Features
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This alloy is a hardenable martensitic stainless, intended for applications with service temperatures up to 1200 F(649 C). It obtains deep hardening and has superior creep strength to standard 12% chromium grades.
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Applications
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Commonly employed in a variety of gas turbine components including compressor parts and high temperature fasteners.
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Machinability
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Similar in characteristics to a 410 stainless steel. Positive feeds and slow speeds will produce best results.
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Welding
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Most common techniques can be used with this alloy. Preheating the weld piece to 400 F(204 C) is recommended. When filler metal is required, it is recommended that an austenitic, heat resisting alloy such as 310 be chosen for maximum weld strength and ductility.
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Forging
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Work material in the range of 1750-2150 F(954-1177 C) and cool slowly in furnace or air.
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Annealing
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For in process annealing, soak at 1300 F(704 C) for 3-4 hours. For complete annealing, a cycle anneal is necessary. Soak at 1450 F(788 C) for 3-4 hours, furnace cool to 800 F(427 C), air cool to 200 F(93 C) and reheat to 1300 F(704 C) for 12 hours followed by air cooling.
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Tempering
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Temper for desired hardness and quench rapidly in oil.
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Hardening
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Soak at 1700 F(927 C) and quench rapidly, followed by tempering.
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Physical Data : [top]
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Density (lb / cu. in.)
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0.286
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Specific Gravity
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7.87
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Specific Heat (Btu/lb/Deg F - [32-212 Deg F])
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0.11
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Electrical Resistivity (microhm-cm (at 68 Deg F))
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475
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Modulus of Elasticity Tension
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29
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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.
