EDRO RoyAlloy™ #6 Free Machining Stainless Holder Steel

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EDRO RoyAlloy™ #6 Free Machining Stainless Holder Steel
Categories:	Metal; Ferrous Metal; Martensitic; Stainless Steel; T 400 Series Stainless Steel
Material Notes:	RoyAlloy™ is a 400 series martensitic stainless steel supplied prehardened. RoyAlloy™ is characterized by excellent machinability, good corrosion resistance, uniform and consistent hardness in all dimensions, good resistance to indentation (compressive strength), excellent ductility, excellent flatness, dimensionally stable, smooth as rolled surfaces, excellent weldability, and good thermal conductivity. RoyAlloy™ is an improved stainless grade designed specifically for plastic molding applications. Chemical composition and thermal treatments provide physical properties and microstructures designed to provide reduced mold maintenance costs, worry free weld repair, dimensional stability, and lower mold production costs due to less cutting tool wear and increased cutting speeds. Applications: plastic and rubber molds, plastic mold bases, plastic mold inserts, constructional parts, plastic extrusion Information provided by EDRO
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Physical Properties	Original Value	Comments

Density	0.282 lb/in³ @Temperature 199 °C	Prehardened to 321 HB
	0.284 lb/in³ @Temperature 20.0 °C	Prehardened to 321 HB

Mechanical Properties	Original Value	Comments
Hardness, Brinell	321
Tensile Strength, Ultimate	152000 psi @Temperature 199 °C	Longitudinal Tests from 3" rolled plate at 321 HB
	155000 psi @Temperature 20.0 °C	Longitudinal Tests from 3" rolled plate at 321 HB
Tensile Strength, Yield	126000 psi @Strain 0.2 %, Temperature 199 °C	Longitudinal Tests from 3" rolled plate at 321 HB
	129000 psi @Strain 0.2 %, Temperature 20.0 °C	Longitudinal Tests from 3" rolled plate at 321 HB
Elongation at Yield	12 % @Temperature 20.0 °C	in 2"
	12 % @Temperature 199 °C	in 2"
Reduction of Area	34 % @Temperature 20.0 °C
	34 % @Temperature 199 °C
Modulus of Elasticity	27600 ksi @Temperature 199 °C
	29000 ksi @Temperature 20.0 °C
Charpy Impact	16.0 ft-lb @Temperature 20.0 °C	Longitudinal Charpy V-notch Tests from a 3" rolled plate at 321 HB
	26.0 ft-lb @Temperature 199 °C	Longitudinal Charpy V-notch Tests from a 3" rolled plate at 321 HB

Thermal Properties	Original Value	Comments
CTE, linear	6.10 µin/in-°F @Temperature 20.0 - 199 °C

Descriptive Properties
Color Code	Yellow Blue Stripe

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NSEDRO001 / 142938

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