Industeel VIRGO 17.4PH 17Cr-4Ni-3Cu Precipitation Hardening Martensitic Stainless Steel (480°C (900°F) - 1 hour + air cooled)

Description: Alloy VIRGO 17.4 PH is a precipitation hardening martensitic stainless steel with Cu and Nb/Cb additions. The grade combines high strength, hardness (up to 300°C / 572°F) and corrosion resistance. Mechanical properties can be optimized with heat treatment. Very high yield strength up to 1100-1300 MPa can be achieved. The grade should not be used at temperatures above 300°C (572°F) or at very low temperatures. It has adequate resistance to atmospheric corrosion or in diluted acids or salts where its corrosion resistance is equivalent to CLC 18.9 (304) or SOLEIL B4 (430). If there are potential risks of stress corrosion cracking, higher aging temperatures must be selected over 550°C (1022°F), preferably 590°C(1094°F). The main applications are :

• mechanical components
• aerospace
• offshore industry
• food industry

Information provided by manufacturer.

物理性能	额定值 (公制)	额定值 (英制)	测试方法
密度	g/cc	lb/in³

机械性能	额定值 (公制)	额定值 (英制)	测试方法
弹性模量	GPa	ksi
拉伸模量	GPa	ksi

电气性能	额定值 (公制)	额定值 (英制)	测试方法
电阻率	ohm-cm @Temperature 20.0 °C	ohm-cm @Temperature 68.0 °F

热性能	额定值 (公制)	额定值 (英制)	测试方法
线性热膨胀系数	µm/m-°C @Temperature 0.000 - 100 °C	µin/in-°F @Temperature 32.0 - 212 °F
	µm/m-°C @Temperature 0.000 - 100 °C	µin/in-°F @Temperature 32.0 - 212 °F
	µm/m-°C @Temperature 0.000 - 400 °C	µin/in-°F @Temperature 32.0 - 752 °F
	µm/m-°C @Temperature 0.000 - 500 °C	µin/in-°F @Temperature 32.0 - 932 °F
比热容	J/g-°C @Temperature 20.0 °C	BTU/lb-°F @Temperature 68.0 °F
导热系数	W/m-K @Temperature 20.0 °C	BTU-in/hr-ft²-°F @Temperature 68.0 °F

构成要素属性	额定值 (公制)	额定值 (英制)	测试方法
碳
铬
铜
铁			As remainder
锰
镍
Niobium, Nb (Columbium, Cb)