Super Invar (also known as Super-Invar, UNS K93500, 32-5 alloy) is a nickel–iron–cobalt alloy prized for its ultra-low coefficient of thermal expansion, making it essential for precision instruments, aerospace components, and optical systems. For buyers seeking both quality and cost-efficiency, identifying a reliable Super Invar factory in China is key. In this article, we’ll explore top Chinese manufacturers, product forms, pricing insights, and how to choose the right supplier.
Leading Super Invar Factories in China
Several reputable manufacturers specialize in producing Super Invar in various forms, using advanced metallurgy and exported globally:
| Factory | Location | Product Forms | Notable Certifications/Specs |
|---|---|---|---|
| Jiangsu HY-Tech Alloy Technology Co., Ltd. | Jiangsu | Tube, Bar, Rod, Sheet, Strip | Super Invar 32-5, state-of-the-art production :contentReference |
| Suzhou Xunshi New Material Co., Ltd. | Jiangsu | Bar, Tube, Plate, Wire, Strip | ISO9001; controlled-expansion alloy 4J32 :contentReference |
| Changzhou Brilliance Special Steel Co., Ltd. | Jiangsu | Bar, Pipe, Sheet, Plate, Forging Stock, Wire | FOB price listed at $20-25/kg :contentReference |
| Xi’an Nickel-Titanium Aviation Materials Co., Ltd. | Shaaxi | Super Invar, Invar, Kovar | ISO9001, pilot & mass production capabilities :contentReference |
| Xi’an Gangyan Special Alloy Co., Ltd. | Shaaxi | Super Invar Wire, Alloy | SGS-certified stock; FOB ~$39/kg :contentReference |
Price Ranges at Chinese Factories
Pricing for Super Invar products varies based on form, dimensions, and certification needs:
| Supplier | Form | Price (USD/kg) |
|---|---|---|
| Changzhou Brilliance | Round Bar (Super Invar 32-5) | $20 – $25 FOB :contentReference |
| Xi’an Gangyan | Super Invar Wire/Alloy | $39/kg FOB (SGS Certified) :contentReference |
| HY-Tech, Xunshi, Kaixin | Various forms (plates, strips, tubes) | Price negotiable; typically competitive |
Why Choose a Chinese Super Invar Factory?
Chinese factories offer:
- Wide product range including **bars, rods, sheets, strips, tubes, and wires** (e.g., HY-Tech, Xunshi) :contentReference
- Cost advantage — **bar priced at $20–25/kg FO**B (Brilliance), **wire at ~$39/kg FOB** (Gangyan) :contentReference
- Strong quality management systems (ISO 9001, SGS certification) and export readiness :contentReference
- Production scales from pilot batches to mass volume, offering flexibility for varied order sizes :contentReference
Choosing the Right Factory
When selecting a Super Invar supplier, consider these factors:
- Product Form Needed: Choose a supplier that produces the form you require (strip, bar, tube, etc.).
- Certifications: If aerospace or precision use applies, prioritize ISO-certified or SGS-tested providers like Gangyan or Xunshi.
- MOQ & Pricing: Changzhou Brilliance accepts a minimum of 50 kg and offers lower per-kg pricing, ideal for budget-conscious bulk buyers :contentReference
- Supply Capacity & Lead Time: Xunshi offers up to 10 tons/week, GH-Tech focuses on quality consistency, Xi’an specializes in R&D and pilot runs :contentReference
- Delivery Terms & Logistics: Confirm FOB/CIF terms, packaging options, and shipping timelines with each factory.
Three Common Buyer Questions
Which Chinese factory offers Super Invar at the lowest price?
Changzhou Brilliance lists FOB prices as low as $20–25/kg for 32-5 Super Invar round bar :contentReference
Where can I get certified Super Invar alloy stock?
Xi’an Gangyan supplies SGS-certified Super Invar stock at around $39/kg FOB :contentReference
Do Chinese manufacturers support small pilot orders?
Yes — Xi’an Nickel-Titanium Aviation Materials Co., Ltd. specializes in pilot processing with short lead times, ideal for small, customized batches :contentReference
English 
Korean 
Japanese 
Arabic 
Spanish 
German 
Portuguese 
French 
Russian 
Italian