Cr20Ni35 Heating Wire

Cr20Ni35 is a medium-nickel, high-chromium NiCr resistance alloy wire designed for stable operation in mid-to-high temperature industrial electric heating systems.

Typical mix is around 35% nickel (Ni) + 20% chrome (Cr), with clear goals:

• Keeps nickel in check
• Cranks chrome to beef up oxidation resistance in air

In practice, Cr20Ni35 fits systems with a bit higher temps and longer runs, without jumping to high-nickel stuff.

Key Features of Cr20Ni35

Cr20Ni35 is like a “steady upgrade” from Cr20Ni30.

• A bit more nickel noticeably improves structure stability at heat.
• Vs. Cr20Ni30, resistance shifts are more controllable during hot-cold cycles.
• Around 20% chrome keeps oxidation resistance solid in air.
• Hits a nice sweet spot between cost and performance.

Cr20Ni35 extends life by better oxidation fight, not hotter strength.

It’s common in spots wanting “a step up from basic NiCr reliability, without high-nickel prices.”

Cr20Ni35 Specs Table

Item	Value
Alloy Name	Cr20Ni35
Equivalent Systems	Approximate Nichrome 35/20
Composition (%)	Cr: ≈20%, Ni: ≈35%, Fe: Bal.
Max Temp	1100–1150°C
Resistivity (20°C)	≈1.02 μΩ·m
Density	≈8.0 g/cm³
Thermal Conductivity	≈44 KJ/m·h·°C
Expansion Coefficient	≈18×10⁻⁶/°C
Melting Point	≈1400°C
Elongation	>20%
Microstructure	Austenitic
Magnetic	Non-magnetic
Standout Traits	Good stability, strong oxidation—balanced mid-high temp pick
Common Uses	Mid-high temp industrial furnaces, ovens, heating tubes, durable elements
Available	Diameters: 0.02–10mm; Strips: 0.02–2mm; Custom wire/strip/flat

Cr20Ni35 life mostly comes down to oxidation rate, not creep or breaks.

Typical Cr20Ni35 Spots: “Oxidation first” mid-to-high temp systems

Mid-to-high temp industrial furnaces

• Needs decent oxidation life
• Lower loads/tension

Continuous runs with controlled loads

• Long heat times
• Chill surface loads

Budget mid-to-high temp OEM gear

• Skip high-nickel
• But Cr15Ni60 life too short

Standard element kits

• Mesh/spirals/waves
• Easy strength fixes structurally

Usage Tips & Limits

Long-term ≤1000–1050°C

• Still design loads carefully—don’t push like high-nickel.

Not for extreme life or super-hot systems.

Cr20Ni35 Selection Comparison

Feature	Cr15Ni60	Cr20Ni35	Cr20Ni80
Nickel	Medium	Lower	High
Chrome	Low	Higher	Medium
Oxidation Fight	Solid	Strong	Strong
High-Temp Strength	Medium	Average	Solid
Temp Spot	Mid	Mid-High	High
Continuous Life	Medium	Medium-Long	Long
Cost	Lower	Medium	Higher

When oxidation life beats hot strength needs and nickel costs matter, Cr20Ni35 is a practical mid-high temp NiCr pick.

CVSIC Cr20Ni35 Custom Options

We offer for Cr20Ni35 NiCr resistance wire:

• Diameters: Common mid-high temp sizes
• Forms: Coils, straight, cut-to-length
• Extras: Coiling, shaping, pre-fab components
• Models: B2B wholesale, OEM, ODM
• Customers: Factories, engineers, element makers

Perfect for mid-high temp projects and repeat orders.

Quality Control | Oxidation Life Focus

• Chrome evenness control
• Surface management (cut oxidation starters)
• Resistance checks
• High-temp oxidation tests

Surface condition rules life for Cr20Ni35.

Cr20Ni35 NiCr resistance wire shines in:

• Better oxidation life than low-chrome NiCr
• Way lower cost than high-nickel
• Mid-high temp systems with structural strength fixes

If you’re aiming for: A tad higher temps + longer life + nickel costs down — Cr20Ni35 is a smart, practical NiCr pick.

FAQs

Long-term at 1150°C?

Nope—stick ≤1050°C long-term for steady oxidation life.

Big diff from Cr15Ni60?

Way stronger oxidation, but not much hotter strength boost.

Fit continuous runs?

Yeah with controlled loads—not high-load designs.

Replace some Cr20Ni80?

Sure when temp/strength needs lower—cheaper swap.

Custom and bulk?

You bet—great for B2B/OEM long-term.