一般鑄造用原(材)料 產品介紹
鋼珠.碎珠
鋼珠780-1
鋼珠780
鋼珠.碎珠
鋼珠780-1
鋼珠780
鋼珠.碎珠

鋼珠
成分  Chemical analysis  (SAE J 827)

Carbon 0.85-1.20%
Manganese 0.60-1.20%
Phosphorus 0.050% max
Sulfur 0.050% max
Silicon 0.40% min

 

硬度  Hardness  (SAE J 827)

Ninety percent of the hardness checks performed on a representative sample shall fall within the range of Rockwell C 40 to 50.

SAE No. Nominal size mm
S-780 2
S-660 1.7
S-550 1.4
S-460 1.2
S-390 1
S-330 0.8
S-280 0.7
S-230 0.6
S-170 0.4
S-130 0.3
S-110 0.3
S-70 0.2

碎珠