MI Heating Cables – Mineral Insulated Heat Tracing Cables
MI Heating Cables
TRM design and manufacture a range of bespoke heat tracing cables specialising in MI Heating Cables for high temperature and hazardous location environments. Offering a wide range of mineral insulated (MI) trace heating cables in both single and twin conductor configurations ensuring a cost effective pipe heating solution.
Almost all applications are suited to the standard range of commercial and industrial MI trace heating cable sheaths.
MI Cable Types
- Stainless Steel Cable Sheaths
- Cupro-Nickel Cable Sheath
- Copper Cable Sheath
- Alloy 825 Cable Sheath
- Inconel 600 Cable Sheath
Stainless Steel Sheathed MI Trace Heating Cables
Stainless steel MI trace heating cables offer high levels of corrosion protection and welding performance as well as an increased upper temperature operation to 600°C.
Stainless Steel Single Core Heating Cables Part Number | Overall Diameter mm |
Conductor Resistance Ω/m @20°C |
Recommended Cold lead-in | |
Reference | OD mm | |||
H321A10K | 3.2 | 10.00 | W321-C2.5-750V | 5.3 |
H321A6300 | 3.2 | 6.30 | W321-C2.5-750V | 5.3 |
H321A4000 | 3.2 | 4.00 | W321-C2.5-750V | 5.3 |
H321A2500 | 3.4 | 2.50 | W321-C2.5-750V | 5.3 |
H321A1600 | 3.6 | 1.60 | W321-C2.5-750V | 5.3 |
H321A1000 | 3.9 | 1.00 | W321-C2.5-750V | 5.3 |
H321A630 | 4.3 | 0.63 | W321-C2.5-750V | 5.3 |
H321A400 | 4.7 | 0.40 | W321-C2.5-750V | 5.3 |
H321A250 | 5.3 | 0.25 | W321-C6.0-750V | 6.4 |
H321A160 | 6.5 | 0.16 | W321-C6.0-750V | 6.4 |
Cupro-Nickel Sheathed MI Trace Heating Cables
Cupro-Nickel MI trace heating cables offer high levels of corrosion protection and temperatures to seawater, chloride and sulphide stress corrosion and can reach as high as 400°C and resistances are from 0.004 ohms/m up to 1.6 ohms/m.
Cupro-Nickel (70:30) Sheathed Heating Cables Part Number | Overall Diameter mm |
Conductor Resistance Ω/m @20°C |
H400B1600 | 3.2 | 1.60 |
H400B1000 | 3.4 | 1.00 |
H400B630 | 3.7 | 0.63 |
H400B400 | 4.0 | 0.40 |
H400B250 | 4.4 | 0.25 |
H400B160 | 4.9 | 0.16 |
H400C63 | 3.2 | 0.063 |
H400C40 | 3.4 | 0.040 |
H400C25 | 3.7 | 0.025 |
H400C17 | 4.6 | 0.017 |
H400C11 | 4.9 | 0.011 |
H400C7 | 5.3 | 0.007 |
H400C4 | 5.9 | 0.004 |
Copper Sheathed MI Trace Heating Cables
Copper MI trace heating cables allow good heat conduction and high resistance to corrosion in applications in marine and industrial environments. It is not suitable for use with oxidising acids, halogens, sulphides and ammonia based solutions and has a working temperature limited to 250°C.
Copper Sheathed Single Core Heating Cables – Bare and HDPE Covered | |||||
Cable Reference Bare | Cable Reference HDPE Covered | Overall Diameter mm | Conductor Resistance Ω/m @20°C | Recommended Cold lead-in | |
Reference | OD mm | ||||
H122D2000 | H122D2000HDPE | 2.8 | 2.000 | W122-C2.5-750V | 5.3 |
H122D1250 | H122D1250HDPE | 2.8 | 1.250 | W122-C2.5-750V | 5.3 |
H122D800 | H122D800HDPE | 3.5 | 0.800 | W122-C2.5-750V | 5.3 |
H122D630 | H122D630HDPE | 4.0 | 0.630 | W122-C2.5-750V | 5.3 |
H122D450 | H122D450HDPE | 4.0 | 0.450 | W122-C2.5-750V | 5.3 |
H122D315 | H122D315HDPE | 4.3 | 0.315 | W122-C2.5-750V | 5.3 |
H122D220 | H122D220HDPE | 4.5 | 0.220 | W122-C2.5-750V | 5.3 |
H122D140 | H122D140HDPE | 4.9 | 0.140 | W122-C2.5-750V | 5.3 |
H122D100 | H122D100HDPE | 5.2 | 0.100 | W122-C2.5-750V | 5.3 |
H122C63 | H122C63HDPE | 3.2 | 0.063 | W122-C2.5-750V | 5.3 |
H122C40 | H122C40HDPE | 3.4 | 0.040 | W122-C2.5-750V | 5.3 |
H122C25 | H122C25HDPE | 3.7 | 0.025 | W122-C6.0-750V | 6.4 |
H122C17 | H122C17HDPE | 4.6 | 0.017 | W122-C6.0-750V | 6.4 |
H122C11 | H122C11HDPE | 4.9 | 0.011 | W122-C6.0-750V | 6.4 |
H122C7 | H122C7HDPE | 5.3 | 0.007 | W122-C10.0-750V | 7.3 |
H122C4 | H122C4HDPE | 5.9 | 0.004 | W122-C16.0-750V | 8.3 |
Alloy 825 Sheathed MI Trace Heating Cables
Alloy 825 MI trace heating cables are suitable for industrial frost protection and high temperature process maintenance where good levels of corrosion resistance is required. It is not recommended for prolonged exposure between 550 and 750°C as phase transformation affects mechanical properties and consequent corrosion resistance of the alloy.
Alloy 825 Single Core Heating Cables Part Number | Overall Diameter mm |
Conductor Resistance Ω/m @20°C |
Recommended Cold lead-in | |
Reference | OD mm | |||
H825A10K | 3.2 | 10.00 | W321-C2.5-750V | 5.3 |
H825A6300 | 3.2 | 6.30 | W321-C2.5-750V | 5.3 |
H825A4000 | 3.2 | 4.00 | W321-C2.5-750V | 5.3 |
H825A2500 | 3.4 | 2.50 | W321-C2.5-750V | 5.3 |
H825A1600 | 3.6 | 1.60 | W321-C2.5-750V | 5.3 |
H825A1000 | 3.9 | 1.00 | W321-C2.5-750V | 5.3 |
H825A630 | 4.3 | 0.63 | W321-C2.5-750V | 5.3 |
H825A400 | 4.7 | 0.40 | W321-C2.5-750V | 5.3 |
H825A250 | 5.3 | 0.25 | W321-C6.0-750V | 6.4 |
H825A160 | 6.5 | 0.16 | W321-C6.0-750V | 6.4 |
Inconel 600 Sheathed MI Trace Heating Cables
Inconel 600 MI trace heating cables offer excellent oxidation resistance and a strength at very high temperatures (up to 1150 °C). Not recommended for in sulphur atmospheres higher than 550 °C.
Inconel Single Core Heating Cables Part Number | Overall Diameter mm |
Conductor Resistance Ω/m @20°C |
Recommended Cold lead-in | |
Reference | OD mm | |||
H600A10k | 3.2 | 10.00 | W321-C2.5-750V | 5.3 |
H600A6300 | 3.2 | 6.30 | W321-C2.5-750V | 5.3 |
H600A4000 | 3.2 | 4.00 | W321-C2.5-750V | 5.3 |
H600A2500 | 3.4 | 2.50 | W321-C2.5-750V | 5.3 |
H600A1600 | 3.6 | 1.60 | W321-C2.5-750V | 5.3 |
H600A1000 | 3.9 | 1.00 | W321-C2.5-750V | 5.3 |
H600A630 | 4.3 | 0.63 | W321-C2.5-750V | 5.3 |
H600A400 | 4.7 | 0.40 | W321-C2.5-750V | 5.3 |
H600A250 | 5.3 | 0.25 | W321-C6.0-750V | 6.4 |
H600A160 | 6.5 | 0.16 | W321-C6.0-750V | 6.4 |
Mineral Insulated MI Heating Cable Applications
- Trace Heating – Frost Protection
- Trace Heating – Process Temperature Maintenance
- Trace Heating – Hot Water Maintenance
- Leak Detection Systems
Industries
- Oil & Gas
- Petrochemical
- Nuclear
- Power Generation
- Construction
- Automotive
- Waste – Incineration Plants
- Pharmaceutical
- Refrigeration
- Transport
- General Engineering
- Water
Trace Heating Systems & Heat Trace Cables
The heat trace cable ranges stocked and supplied by Thorne & Derrick International includes electric heating cables for process temperature maintenance, pipe and vessel freeze protection and roof and gutter de-icing applications where snow and ice removal is required – cables and systems are available for commercial, industrial safe area (non-hazardous area) and hazardous area heating applications with ATEX certification.
Electric heat tracing is a cable based system used to maintain, raise temperature and protect process pipework and vessels against freezing temperatures and associated frost damage – heat tracing cables mitigate and counteract cold weather effects as part of a Winterization strategy for industrial and process applications against low (sub-zero) ambient temperatures on both onshore and offshore locations.
Heat tracing systems utilising self-regulating, constant wattage and mineral insulated (MI) heating cables are available to provide the optimum electrical heating system for your application – we provide a trace heating system design service.
Heat Trace Cables: Ramp Heating | Roof & Gutter Heating | Water Pipework Frost Protection | Hopper Heating | Tank Heating | Hazardous Area Heating | Fire Escapes