Baking Stress relief & Hydrogen embrittlement
Black Oxide
MIL-DTL-13924
Type I- On steel
Type II- Stainless Steel
Type IV- Stainless Steel
Cadmium
AMS-QQ-P-416
Class I- 0.0005
Class II- 0.0003
Class III- 0.0002
Type I- As plated w/o supplementary treatment
Type II- As plated with supplementary treatment:
Clear, Yellow, Black, Olive Drab
Chemical Finish:
Black MIL-F-495/ on copper or brass alloy
Chromate Conversion Class IA
(Chem Film) MIL-C-5541 Class 3
ROhs available
Copper
MIL-C-14550
Class 0- 0.001-0.005 for heat treatment stop-off
Class I- 0.001 carburizing shield
Class II- 0.0005 plating undercoat
Class III- 0.0002 prevents metal migration
Class IV- 0.0001
Electroless Nickel
MIL-C-26074
Class I- As plated w/o supplementary heat treatment
Class II- Heat treated to obtain required hardness
Class III- Aluminum alloys, non heat-treat
Class IV- Aluminum alloys, heat-treat
Grade A- 0.0010
Grade B- 0.0005
Grade C- 0.0015
Nickel AMS-QQ-N-290
Class I- for corrosion protection
Class II- for engineering applications
Grade A- 0.0016
Grade B- 0.0012
Grade C- 0.0010
Grade D- 0.0008
Grade E- 0.0006
Grade F- 0.0004
Grade G- 0.0002
Passivate:
AMS2700
ASTMA967
Phosphate
TT-C-490 & MIL-DTIL-16232
Type Z- Zinc
Type M- Manganese
Silver AMS-QQ-S-365
AMS2410
AMS2411
ASTMB700
Type I- Matte finish
Type II- Semi-Bright finish
Grade A- Chromate post-treatment
Grade B- no supplementary treatment
Tin Plating
MIL-T-10727 & ASTMB545
Type I- Electrodeposited, 0.0001- 0.00025
flash for solder, or 0.0003 min corrosion protection
Zinc
ASTM-B633 or AMS-QQ-Z-325
Service Condition IV or Class I- 0.0010 min
Service Condition III or Class II- 0.0005 min
Service Condition II- 0.0003 min
Service I or Class III- 0.0002
Type I- As plated w/o supplementary treatment
Type II- with colored chromate conversion coating:
yellow, black, olive drab
Type III- With clear chromate conversion coating
ROhs Available
