hat
Lè dezirab soulaje tansyon yo nan D, chalè D2 klas asye tou dousman nan 1050 ° -1250 ° F, pèmèt yo egalize, ak Lè sa fre nan toujou lè (Strain soulaje).
eng
When desirable to relieve the strains of machining, heat D2 grade steel slowly to 1050°-1250°F, allow to equalize, and then cool in still air (Strain Relieving).