تابع muti astm a564
تابع muti astm a564 astm a564 Type 17-4 PH provides an outstanding combination of high strength, good corrosion resistance, and good mechanical properties at temperatures up to 600°F (316°C). 17-4 PH has slightly more Ferrite than other PH grades, making it a bit more magnetic. 17-4 PH provides toughness in both base metals and welds.