Nelson NCD+ - Spring Pressure Chart

© 2016 Nelson Stud Welding, Inc. Page 33
All Rights Reserved. January 2016 Part No. 729-110-043 Rev. 1.02
B Spring Pressure Chart
The settings are only to be considered guide values under optimal welding conditions. The exact spring pressure setting
should be determined in trial welds considering factors such as base material, thickness, surface quality, welding position,
stud type, stud dimensions, etc.
SPRING PRESSURE CHART
MATERIAL
COMBINATION
STUD MATERIAL
Low Carbon Steel
Stainless Steel
Brass
Aluminum 1100
Aluminum 5356
SPRING PRESSURE (%)
WORKPIECE
Steel C ≤ 0.25
3
3
3
3
3
3
3
3
3
3
3
3
4
4
Steel plate,
galvanized
<25µm
3
3
3
4
4
3
3
3
4
4
3
3
4
4
Stainless Steel
3
3
3
3
3
3
3
3
3
3
3
3
4
Brass (no free
machining
3
4
4
3
3
3
3
4
Copper
3
4
4
4
3
4
4
5
Aluminum 1100
3
5
3
5
Aluminum 5356
3
4
3
4
Aluminum 6061
3
4
3
4
Ø STUDS (mm)
3
4
5
6
8
3
4
5
6
8
3
4
5
6
8
3
4
5
6
8
3
4
5
6
8