What is the Chinese equivalent of NiCr 40/20 or Ni40Cr20?

GB Cr20Ni35. NiCr 40/20 has Ni ≥37.0%, Cr 18–22%, Si 1.8–3.0% and resistivity ≈1.05 μΩ·m; GB Cr20Ni35 has Ni 34.0–37.0%, Cr 18.0–21.0%, Si 1.00–3.00% and resistivity 1.04 μΩ·m. The two overlap across the composition range.

Is there a grade called Cr20Ni40 in the Chinese standard?

No. GB/T 1234 does not define Cr20Ni40. Some Chinese suppliers use it as a commercial name, but the standardised grade is Cr20Ni35.

Does NiCr 40/20 have an ASTM or DIN number?

No. It has no ASTM, UNS, Werkstoff or DIN designation — it is an industry trade grade.

Can NiCr 40/20 be used in a sulphur-bearing atmosphere?

No. All nickel-chromium grades are unsuitable in sulphur atmospheres. Use FeCrAl instead.

Home › Products › Furnace Conveyor Belt & Mesh Belt

Furnace Conveyor Belt & Mesh Belt

Short answer: we supply woven and balanced-weave furnace belts in 304, 314, 310S and 253MA, width to order, with mesh type, wire diameter, pitch and edge construction made to your drawing.

Belt life is decided by tension, not by wire diameter
When a belt stretches early, the instinct is to go up a wire gauge. That usually makes it worse: thicker wire means more belt weight, which needs more tension, which accelerates creep. At 850 °C the allowable stress of 314 is roughly a third of its room-temperature value — so a belt sized on room-temperature strength will stretch. Check the take-up counterweight before changing the wire.

1. Grades

Grade	Max continuous service	Positioning
304	≈ 870 °C / 1,600 °F	General purpose, lowest cost
310S (2520)	≈ 1,150 °C / 2,100 °F	High temperature, good creep resistance
314	≈ 1,150 °C / 2,100 °F	Better oxidation resistance than 310S at temperature
253MA	≈ 1,150 °C / 2,100 °F	Rare-earth modified, good thermal fatigue resistance

2. How a belt is specified

Item	Common range	Why it matters
Mesh type	Balanced weave, double balanced, rod-reinforced, spiral	Decides openness, strength and how the belt tracks
Wire diameter	φ1.0 – 6.0 mm	Strength and weight — heavier is not always better
Pitch	6 – 50 mm	Product support and open area
Width	200 – 3,000 mm	Made to order; wider needs more support rollers
Edge	Welded edge, chain edge, or crimped	Drives tracking and wear at the side plates
Endless or open	Both	Endless is joined at our works; open is joined on site

3. What actually decides belt life

Take-up tension — too much and the belt creeps; too little and it slips. Measure the motor current: a belt that is being dragged shows higher current than the design value.
Support spacing — unsupported span is where sag and fatigue start.
Temperature uniformity — a hot band across the belt means a burner or element problem, not a belt problem.
Product loading pattern — one-sided loading makes the belt track off-centre and wear the edge.

4. Please confirm these 4 points before ordering

Mesh type and wire diameter — or send the old belt, or a photo with a ruler in frame.
Width, length and whether endless — endless belts need the centre-to-centre pulley distance, not just the developed length.
Working temperature and atmosphere — sulphur-bearing atmospheres limit grade choice.
Loading and drive arrangement — so we can advise on edge type and tension.

Need a quotation?

Send grade, form, size with tolerance and quantity — we reply within one working day (GMT+8).

WhatsApp +86 180 6103 5177 Enquiry form

About Taizhou Aolante Alloy

Taizhou Aolante Alloy Materials Co., Ltd. was founded in 2010 and is a source manufacturer of electric heating alloys, precision resistance alloys and furnace accessories. Production base in Taixing, Taizhou, Jiangsu, approximately 20,000 m², 48+ pieces of melting, forging, rolling, drawing, heat-treatment and testing equipment, 200+ staff, annual capacity about 7,500 tonnes.

Our range covers heating wire and strip, heating cable, wide thin strip, radiant tubes, heat-resistant steel, conveyor belts, superalloys, industrial furnaces, thermocouples, refractory insulation, heating tubes, CuNi/MnCu alloys, far-infrared quartz tubes.

Contact: Tel +86 180 6103 5177 / +86 523 8751 8610 | Email althjcl@126.com

Grade cross-references are commercial equivalents, not a guarantee of interchangeability. Final acceptance is subject to the composition sheet agreed at order.