Special offer - Delivery now £4.99 when ordered onlineAFM/SPM disc gripper tweezers
Micro-Tec AFM / SPM disc gripper tweezers are designed to pick up stainless steel AFM / SPM discs.
The shape of the tips fits around the edge of the discs - Ideal when picking up AFM/SPM discs from a flat surface after mounting a specimen. The tips are not coated and have straight, fine edges for a better grip. Available for the popular Ø12mm and Ø15mm AFM/SPM discs. Made from anti-magnetic stainless steel with a satin surface, 115mm long.
please click here for specifications
The material used for manufacturing the Micro-Tec AFM / SPM disc gripper tweezers is a selected grade of non-magnetic AISI 304.
- AISI 304 is an austenitic stainless steel (DIN 1.4301, X 5 CrNi 18-10) and is the most common type of stainless steel
- contains 18-20 wt% Chromium and contains significant amounts of Nickel as additional alloy component
- normally non-magnetic, but becomes slightly magnetic when cold worked
- cannot be hardened by heat treatment
- can be work hardened, annealing is recommended for stress relieving
- good corrosion resistance to most solvents, salts and moderate acids
- generally used where corrosion resistance is a requirement
- typical applications include tweezers for microscopy, electronic industry, fine mechanics and laboratory
General composition of AISI 304
|
Element |
Wt. % |
|
C |
≤0.08 |
|
Cr |
18.0 – 20.0 |
|
Ni |
8.0 – 10.5 |
|
Mn |
≤2.0 |
|
Si |
≤1.0 |
|
P |
≤0.045 |
|
S |
≤0.03 |
|
Fe |
Balance |
Properties of AISI 304
|
Mechanical Properties |
|
|
State |
Annealed |
|
Density |
8.0 g/cm3 |
|
Hardness Brinell |
123 |
|
Hardness Rockwell B |
70 |
|
Hardness Vickers |
129 |
|
Tensile strength, ultimate |
505 MPa |
|
Tensile strength, yield |
215 MPa |
|
Yield stress, o.2% |
≤200 Mpa |
|
Elongation until break |
70% |
|
Modulus of Elasticity |
195 GPa |
|
Poisson's ratio |
0.29 |
|
Thermal Properties |
|
|
Coefficient of thermal linear expansion |
17.3 x 10-6 /°C (20-100°C) |
|
Coefficient of linear thermal expansion |
17.8 x 10-6/°C (20-300°C) |
|
Specific heat capacity |
0.50 J/(g.K) |
|
Thermal conductivity |
16.2W/(m.K) |
|
Continuous use (service) temperature |
325°C |
|
Maximum service temperature (short) |
870°C |
|
Electrical Properties |
|
|
Resistivity |
0.72 x 10-4 Ohm.cm |
TSB 50-040012 Material for Micro-Tec AFM / SPM disc gripper tweezers 2015-11-06 Revision 1
Qty |
£11.00 |
 Micro-Tec 12A.AM AFM / SPM disc gripper tweezers, anti-magnetic stainless steel for Ø12mm AFM/SPM discs, 115mm long |
Qty |
£11.00 |
 Micro-Tec 15A.AM AFM / SPM disc gripper tweezers, anti-magnetic stainless steel for Ø15mm AFM/SPM discs, 115mm long |