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NIBRON SPECIAL TECHNICAL DATA |
MECHANICAL PROPERTIES: Specification Minima available on application.
Typical Physical Properties
| Melting Range | 1080 - 1120°C | |
| Resistivity | 0.17 microhm m | |
| Magnetic Permeability | 1.001 | |
| Density | 8.6 gm/cc | |
| Modulus of Elasticity | 146,000 N/mm² | |
| Coeff. of Thermal Expansion | 0.000016/°C | |
| Modulus of Rigidity | 54,000 N/mm² | |
| Specific Heat | 435 J/Kg°C | |
| Poisson’s Ratio | 0.33 | |
| Thermal Conductivity | 46 W/m°C | |
| Electrode Potential | minus0.36 Volts | |
| Electrical Conductivity | 10% IACS | |
| Machinability Rating | 30 % (free cutting brass = 100%) |
WELDABILITY
Tests have shown that NIBRON SPECIAL is inherently weldable both to
itself and Grade 316 stainless steel. The welds produced are of high
metallurgical and physical integrity, good mechanical strength and
ductility. Conventional inert gas shielded arc methods using a nickel
aluminium bronze filler give very good results. Further studies involving
helium shielding and a NIBRON filler metal are being conducted to optimise
the joining process. (For more details
see next page).
CORROSION & ENIVIRONMENTAL TESTS PASSED
Sulphide stress corrosion cracking test: NACE TM0177-90
Mercurous Nitrate stress corrosion test: BS2874
Slow strain rate tests for stress corrosion cracking:
· Hydrogen (ASTM G129) 20°C
· Synthetic sea water (20 & 50°C)
· Ammonium chloride (20 & 80°C)
C-Ring stress corrosion tests:
· Sodium chloride
· Ammonium chloride
For More Information On Nibron Weldability Click Here
