Ищу действующие станларты
= ASTM A297/A297M-10 Standard Specification for Steel Castings, Iron Chromium and Iron Chromium Nickel, Heat Resistant, for General Application
= ASTM A351/A351M-12 Standard Specification for Castings, Austenitic, for Pressure-Containing Parts
= ASTM A608/A608M-12 Standard Specification for Centrifugally Cast Iron Chromium Nickel High Alloy Tubing for Pressure Application at High Temperatures
Заранее спасибо