The best known and dominant thermocouple wire is the Type K - Grade A, providing accuracy within ±1.5°C.

Two core conductors are insulated by glass fibre twisted together.  With a maximum working temperature of 800°C, this consumable item converts thermal energy at the hot junction of the thermocouple to an electrical mV signal which can then be used by temperature control and recording instruments to accurately record and control the temperature of the item being heat treated.  Each roll has 100m length of wire.

• Dimensions of Roll: 120 H x 124 W x 124 D mm
• Length of Wire: 100m
• Wire Dimensions: 2pc of 1.6mm H x 1.6mm D
• Weight: 1.4kg
• Materials: 1 x 0.65mm NiCr and 1 x 0.65mm NiSi (22 & 20 gauge-American Brown & Sharpe Standard)
• Maximum Working Temperature: 800°C
• Standards: Conforms with BSEN 60584-2, ASTM E230-1993, ANSI MC96.1-1982, IEC 584-1:1977, IEC 584-2:1982
• Colour: Red (-) and Yellow (+)