|
|
发表于 2010-5-12 15:07:19
|
显示全部楼层
Spec. Thickness Comment * r |- P0 w) X) }' l1 G' t
ASTM-B-5 V, |8 x3 M5 t" \
545-97e1 ASTM requires purchaser to supply information, such as base metal, underplating, test requirements and test methods etc. In general, copper alloys containing more than 5% Zn shall have a copper undercoating of at least 0.0001" or nickel undercoating of at least 0.000050". 1 K6 S" I1 {" x+ G9 q4 }7 S2 u! T
Class A .0001" min , j! N7 h% X; C, }
Class B .0002" min
/ R, O' y+ z) pClass C .00032" min .0004" min. for steel. 1 t- k8 i+ d8 F
Class D .0006" min .0008" min. for steel. . V- t; A/ S- Q; ]+ i" K- y
Class E .0012" min ASTM requires purchaser to supply information, such as base metal, underplating, test requirements and test methods etc. In general, copper alloys containing more than 5% Zn shall have a copper undercoating of at least 0.0001" or nickel undercoating of at least 0.000050". / {: Y+ T* z: a8 j
Type Matte 5 S' g2 @. M9 Z- d9 {$ a" D! M
Type Bright 2 O9 R$ Q6 n% I2 J- G( O. a
Type Flow-- s7 I7 G- w( O- i/ W
brightened ----------- Flow brightening available : q) ]3 e% E1 U" t, W; }
最少0.00032 英寸，就是 8微米 |
评分
-
查看全部评分
|
