Our tools are

• non- sparking
• extremely corrosion-resistant against many media (e.g. sea water )
• antimagnetic

They are produced out of a non-iron-alloy (special bronze, copper-beryllium), which are highly wear-resistant. Both alloys are checked through the Federal Office for material research and examination/Berlin.

Analysis of non-sparking material:

Material	Aluminium-multisubstance-bronze (special bro. SB)	Copper-beryllium 2
Analysis min. in % max. in %	Cu Al Ni Fe Mn Rest 9 2 1 - Rest 12 5 3 1,5	Be Ni Co Cu 1,8 0,1 0,1 Rest 2,0 0,6 0,6 Rest
Mechanical properties
Strength N/mm²	750-850	1140-1310
Yield point N/mm²	450-550	840-860
Hardness Brinell	200/250	310/360
Physical properties
Specific weight	8,45	8,26
Magnetic properties	1,1	1,1
Heat-extension 20-200 °C	0,000015 %	0,000012 %
Electrical conductivity	8/12	8/6

Production and quality supervision:

Molds

Nearly all our non-sparking-tools are cast from molds out of wood or synthetic material.
The molds are produced to precise specifications according to the DIN (German Industrial Standard) by experienced and highly qualified mold manufacturers.

Casting

After the first casting, there is an extensive examination. The composition and the heating of the material, the sand molds and the pipe have to come to an optimal casting. We record this data so that we are able to reach the ideal standard with the same conditions at every future casting. Through this quality assurance program we can maintain a high quality standard.

Quality control

Additionally there is a check to DIN 50049.2.2 after every line.

• Mechanical properties
• Yield point
• Tensile strength
• Stretching
• Grade of hardness
• Chemical composition

Additional material controls

Upon request we can make an additional specific check of each tool for an additional charge.

• Making out an X-ray for finding blow-holes
• Checking for surface cracks

Instructions for use:

Non-sparking tools have to be softer than conventional tools. For this reason the use of non-sparking tools has to be carrying out with special care. Overstraining has to be avoid. The use of non-sparking tools must not be the only preventive measure in areas of fire and explosion risks. For an extensive protection of staff and equipment, please follow the instructions of your professional association.

Follow-up treatment:

If you want to make a follow-up treatment on the tools (e.g. resharpen) by yourself, we would be pleased to send you our technical instructions.

Guarantee:

Our tools contain a guarantee against mistakes in material and producing. However, this guarantee does not include damages caused by an improper handling. We reserve the right to any changes in material, workmanship and design without notice.