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EDRO UltraChem® #15 Precipitation Hardening Stainless Mold Steel
Categories: Metal; Ferrous Metal; Stainless Steel; Precipitation Hardening Stainless
Material Notes: Ultrachem® is a chromium-nickel precipitation-hardening stainless steel, a modified PH alloy grade, which is characterized by: exceptional corrosion resistance, uniform hardness in all dimensions, excellent compressive strength, simple low temperature heat treatment with small dimensional change, good weldability, and excellent toughness.
Ultrachem® is normally supplied in a fully heat treated condition, age hardened to 38 or 42 HRC.
Ultrachem® is recommended for use in longlife molds subjected to severe working conditions, including corrosive materials and atmospheres, high stressed and indentation experienced in fast cycling molding operations. It better resists corrosion from the more highly corrosive plastics than AISI 420 stainless steels

Information provided by EDRO
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Physical PropertiesMetricEnglishComments
Density  7.75 g/cc
@Temperature 399 °C		0.280 lb/in³
@Temperature 750 °F		Age-hardened to 42 HRC
 7.81 g/cc
@Temperature 199 °C		0.282 lb/in³
@Temperature 390 °F		Age-hardened to 42 HRC
 7.86 g/cc
@Temperature 20.0 °C		0.284 lb/in³
@Temperature 68.0 °F		Age-hardened to 42 HRC
 
Mechanical PropertiesMetricEnglishComments
Hardness, Rockwell C 38 - 4238 - 42
Tensile Strength, Ultimate 1310 MPa
@Temperature 20.0 °C		190000 psi
@Temperature 68.0 °F		Age hardened at 42 HRC
Tensile Strength, Yield 1210 MPa
@Temperature 20.0 °C		175000 psi
@Temperature 68.0 °F		Age hardened at 42 HRC
Elongation at Yield 14 %14 %in 2"
Reduction of Area 50 %50 %
Modulus of Elasticity  175 GPa
@Temperature 399 °C		25400 ksi
@Temperature 750 °F
 186 GPa
@Temperature 199 °C		27000 ksi
@Temperature 390 °F
 197 GPa
@Temperature 20.0 °C		28500 ksi
@Temperature 68.0 °F
Charpy Impact 33.9 J
@Temperature 20.0 °C		25.0 ft-lb
@Temperature 68.0 °F		Age hardened at 42 HRC
 
Thermal PropertiesMetricEnglishComments
CTE, linear  10.8 µm/m-°C
@Temperature 20.0 - 199 °C		6.00 µin/in-°F
@Temperature 68.0 - 390 °F
 11.7 µm/m-°C
@Temperature 20.0 - 399 °C		6.50 µin/in-°F
@Temperature 68.0 - 750 °F
Specific Heat Capacity 0.460 J/g-°C
@Temperature 20.0 °C		0.110 BTU/lb-°F
@Temperature 68.0 °F
Thermal Conductivity  16.1 W/m-K
@Temperature 20.0 °C		112 BTU-in/hr-ft²-°F
@Temperature 68.0 °F
 18.6 W/m-K
@Temperature 199 °C		129 BTU-in/hr-ft²-°F
@Temperature 390 °F
 21.5 W/m-K
@Temperature 399 °C		149 BTU-in/hr-ft²-°F
@Temperature 750 °F
 
Component Elements PropertiesMetricEnglishComments
Carbon, C 0.040 %0.040 %
Chromium, Cr 14.75 %14.75 %
Copper, Cu 3.2 %3.2 %
Iron, Fe 76.68 %76.68 %As Balance
Manganese, Mn 0.50 %0.50 %
Nickel, Ni 4.5 %4.5 %
Niobium, Nb (Columbium, Cb) 0.25 %0.25 %
Sulfur, S 0.080 %0.080 %
 
Descriptive Properties
Color CodeWhite

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NSEDRO005 / 142942

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