日本五十路中出_欧美人与动性行为zooz禽交_18禁区免费观看网站在线_香蕉青草视频在线_★浪潮AV无码不卡_亚洲一级特黄大片免色_亚洲永久中文字幕_91精品国产热久久福利_韩国免费网站成人_国产成人特级毛片在线

BALL
Chrome Steel Ball Stainless steel ball Carbon steel ball Hollow ball Plastic ball Ceramic ball
3.Stainless Steel Ball
(III) Stainless Steel Ball
Material: AISI420/420C/440C/430
Diameters: 0.8mm to 50.8mm
Precision grades: GB/T308 & ISO3290 G5-5-16-20-40-100-200

AFBAM G500/G1000


Chemical Composition %

Hardness

Material

C

Si

Mn

P

S

Cr

Ni

Mo

HRC

AISI420

0.16/0.25

1.00 max

1.00 max

0.04 max

0.03 max

12.0/14.0

0.75 max

52/58

AISI420C

0.36/0.50

1.00 max

1.00 max

0.04 max

0.03 max

12.5/14.5

0.75 max

52/58

AISI440C

0.95/1.20

1.00 max

1.00 max

0.04 max

0.03 max

16.0/18.0

0.40/0.80

58/64

AISI 430

0.08 max

1.00 max

1.00 max

0.04 max

0.03 max

16.0/18.0

Density

7.93g/cm3


Application: Automotive applications, Ball bearing, Grinding medium