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ANSWER: ASTM A1008 DS steel is drawing steel, “D” means drawing. A1008 DS steel has two different types: A1008 DS Type A, A1008 DS Type B
The carbon composition of A1008 DS Type A is not more than 0.08%.
The carbon composition of A1008 DS Type B is not more than 0.02-0.08%.
The yield strength of A1008 DS A/B/C is max 150-240MPa, Elongation 50mm is min 36% , r value is 1.3-1.7, n value 0.17-0.22