محبوب ترین astm a479 با عرضه کافی
Comparison of ASTM A479 and ASTM A276. 1. Both standards cover the same product forms hot or cold finished bars. including rounds and various shapes. A479 specifically refers to use in boiler and pressure vessel. applications. A276 specifically defers bars for reforging and free machining grades to other. ASTM standards (A314 and …