Double chamfer SAE1144 hexagon bar original small size hexagon steel

Product name: Free cutting steel

Brand: SAE1144

Standard: ASTM A108-1999

Product shape hex bar

Free cutting steel for use

Used as turning steel, widely used in structural parts. Commonly used in the manufacture of more important mechanical parts, parts such as machine screws, self-tapping screws, bolts, nuts, double heads, headless parts, hex bolts and so on.

Chemical composition:

Carbon C: 0.40 ~ 0.48

Silicon Si: 0.15 ~ 0.35

Manganese Mn: 1.35 ~ 1.65

P: ≤0.040

Sulfur S: 0.24 ~ 0.33

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