Heat Resistant Well Polished Silicon Nitride Si3N4 Ceramic Rod for
Industrial
Main characteristics of the silicon nitride ceramic rods
1. Extraordinary thermal shock, it can withstand up to1000℃
2. It's easier to do precise machining, the tolerance can be
0.001mm
3. Chemical corrosion resistance under high temperature, except for
HF and H3PO4
4. Extreme wear and abrasion resistance., much better than
stainless steel
5. Great mechanical properties, hardness, compressive and flexural
strength are much higher stainless steel
Specification and production capability of ceramic rods
| Material | silicon carbide, alumina, zirconia, steatite optional |
| Outer diameter | 0.5 ~30 mm |
| Length | 1 ~ 1000mm |
| Roughness | To be Ra0.1 | Roundness | To be 0.005mm |
| Surface treatment | Polished, Glazed, Metalized availability |
| Cosmetic | Smooth surface without no contamination, deformation, and crack |
Description of silicon nitride ceramic rods
Silicon nitride ceramic offers exceptional thermal shock, extreme thermal stress resistance, excellent wear resistance, great chemical
resistance, and easier machinable features. It's always made use of
producing refractory ceramic parts, anti-corrosion ceramic parts,
ceramic seal parts, ceramic cutter/blade for machining.
Our company supplies a great of silicon nitride ceramic components,
including Si3N4 ceramic tube, Si3N4 ceramic plate, Si3N4 ceramic
rod and variety complicated silicon carbide ceramic structural
parts.
Application of silicon nitride ceramics:
Silicon nitride ceramic parts work as welding pins, Ceramic Shafts,
Ceramic bearings, Ceramic substrates, Ceramic piston plungers,
Ceramic sliders, Ceramic seal ring, Air turbine blades which are widely used in machinery, electronics, semiconductor,
petroleum, chemical industry, smelting, and other industries
Datasheet of technical ceramic materials
| Property | Units | Materials |
| 99.5%Al2O3 | 99%Al2O3 | 95%Al2O3 | ZrO2 | Si3N4 |
| Density | g/cm3 | ≥3.85 | ≥3.80 | ≥3.60 | ≥6.0 | ≥3.2 |
| Water absorption | % | 0 | 0 | 0 | 0 | 0 |
| Hardness | HV | 1700 | 1700 | 1500 | 1300 | 1550 |
| Flexural strength | Mpa | ≥379 | ≥338 | ≥320 | ≥1200 | ≥600 |
| Compressive strength | Mpa | ≥2240 | ≥2240 | ≥2000 | ≥1990 | ≥2500 |
| Fracture toughness | Mpa m1/2 | 4-5 | 4-5 | 3-4 | 6.5-8 | 6 |
Max. service temperature (Non-loading) | ℃ | 1675 | 1600 | 1500 | 1000 | 1200 |
| CTE (20-800℃) | 1×10 -6 /℃ | 6.5~8.0 | 6.2~8.0 | 5.0~8.0 | 8.0~9.5 | 3.1 |
| Thermal shock | T(℃) | ≥250 | ≥200 | ≥220 | ≥300 | ≤1000 |
| Thermal conductivity(25℃) | W/m.k | 30 | 29 | 24 | 3 | 15~20 |
| Volume resistivity (25℃ ) | ohm.cm | ＞1 x 10 14 | ＞1 x 10 14 | ＞1 x 10 14 | ＞1 x 10 11 | ＞1 x 10 12 |
| Insulation strength | KV/mm | 19 | 18 | 18 | 17 | |
| Dielectric constant(1Mhz) | (E) | 9.7 | 9.5 | 9.5 | 29 | |
Packaging proposal and transportation solutions
1. We will keep the ceramic parts inside the inner package to be
fixed without moving, then it will prevent them from collision each
other, to avoid any cause any chippings during transportation.
2. In addition, the inside of the outer carton will be filled with
sufficient protective kinds of stuff.
Why choose us?
★ 10+ Years of manufacturing experience in OEM, ODM ★ Powerful R&D,
mass production capability
★ In-house comprehensive manufacturing types of equipment ★
Rigorous quality control system and processes
★ Surpassing pre-sales and after-sales service ★ Abide all orders
as the first priority
FAQs (Frequently Asked Questions)
Q1. Are you a factory or trading company?
A: We are a manufacturer. You are welcome to visit our factory.
Q2: Do you send a sample to check?
A: Sure, the sample is free and freight collect.
Q3: When will you ship it?
A: If the products are in storage, we'll ship within 48 hours
Q4: When can I get the price?
A: We regularly quote within 24 hours after we get your inquiry. If
you are in urgent need of getting the price.
Please call us or tell us in your email so that we will proceed
with your inquiry as a priority.
Q5: Is it available to provide customized products?
A: We always support custom-made demand as per different materials,
dimensions, and designs.
Q6: How to ensure quality?
A: The dimension out of any batch will be carried out sampling
inspection per international AQL standard. A 100% cosmetic
inspection will be done.
Q7: What other products are you dealing with?
A: We focus on a variety of ceramic tubes, ceramic substrates,
ceramic sheets, textile ceramics besides metalized ceramics.
