Graphite Gasket Reinforced with Metal Mesh
Model:KXT 730
> Graphite gasket reinforced with metal mesh > Tough and versatile composite for high pressures > Strong composite construction without adhesives > Extra strength for ease of handing and fitting. > With or without eyelets.
Graphite Gasket Reinforced with Metal Mesh – KXT 730
Kaxite Sealing, a professional China expanded graphite gasket manufacturer, presents the KXT 730 Graphite Gasket Reinforced with Metal Mesh – a tough and versatile composite sealing solution engineered for high‑pressure, high‑temperature, and aggressive chemical environments. This advanced gasket is manufactured from homogeneous, purified natural graphite flake, mechanically bonded with a stainless steel mesh, tanged metal, or flat sheet reinforcement – without the use of adhesives – ensuring exceptional dimensional stability and structural integrity under extreme service conditions.
Why KXT 730? The unique combination of expanded graphite and metal reinforcement delivers outstanding sealing performance with self‑lubricating properties, corrosion resistance, thermal stability, and non‑brittle behaviour. It seals easily under moderate bolt loads, retains torque through service, and maintains a tight seal even during pressure fluctuations. With a maximum service temperature of up to 650°C in steam and excellent resistance to a wide range of aggressive chemicals, this gasket is ideal for the most demanding industrial applications.
As a leading reinforced graphite gasket supplier in China, Kaxite offers the KXT 730 in standard and custom sizes, with various reinforcement options (tanged carbon steel, SS304/SS316 tanged sheet, flat sheet, or mesh) to match your specific pressure, temperature, and chemical resistance requirements. Request a free sample or get a wholesale quote today.
Max. Temperature (Steam)650°C
Max. Pressure≥48 N/mm²
Compressibility25–50% (depending on reinforcement)
Recovery10–30%
Reinforcement OptionsTanged CS, SS304/316, Mesh, Flat Sheet
Gas Permeability≤0.4 – ≥1.0 cm³/min
Why KXT 730 Graphite Gasket Reinforced with Metal Mesh?
- Excellent Sealing Performance – Low gas permeability and tight sealing even under pressure fluctuations
- Self‑Lubricating – Graphite provides natural lubrication, preventing flange galling and facilitating easy disassembly
- Thermal Stability – Maintains seal integrity from cryogenic temperatures up to 650°C in steam
- Corrosion Resistance – Withstands a wide range of aggressive chemicals and acids
- Non‑Fragile & Non‑Aging – Does not become brittle over time, ensuring long service life with minimal maintenance
- Reinforcement Options – Available with tanged carbon steel, SS304, SS316, flat sheet, or mesh for tailored strength and handling
Construction & Reinforcement Options
The KXT 730 is manufactured from high‑purity expanded graphite flakes, mechanically bonded to a metal reinforcement layer – without the use of adhesives. This ensures a homogeneous, void‑free structure that provides excellent thermal and chemical stability. The reinforcement type can be selected to match your specific application requirements:
- Tanged Carbon Steel Sheet – Cost‑effective option for general industrial applications with moderate corrosion requirements
- SS304 / SS316 Tanged Sheet – Enhanced corrosion resistance for chemical and marine environments
- SS304 / SS316 Flat Sheet – Provides superior dimensional stability and low gas permeability
- SS304 / SS316 Mesh Sheet – Offers higher compressibility and conformability to irregular flange surfaces
- Tin‑plated Tanged Sheet – Additional corrosion protection for mild steel reinforcements
* All options are available with or without eyelets for easy handling and installation. Contact our technical team for assistance in selecting the optimal reinforcement for your operating conditions.
Key Advantages of KXT 730 Reinforced Graphite Gaskets
Exceptional Temperature Range – Operates continuously from cryogenic temperatures up to 650°C in steam and 450°C in oxidising atmospheres.
High Pressure Resistance – Withstands flange pressures ≥48 N/mm², making it suitable for high‑pressure pipeline and vessel sealing.
Chemical Compatibility – Resistant to most acids, alkalis, solvents, oils, and aggressive chemicals (except strong oxidising agents).
Low Gas Permeability – Values as low as ≤0.4 cm³/min (t=1.5mm) ensure minimal leakage and compliance with fugitive emission standards.
Excellent Recovery & Compression Set – Maintains sealing force over time, reducing the need for re‑torquing.
No Adhesives / No Binders – Pure graphite with mechanical bonding ensures no outgassing or contamination of process media.
Typical Applications
Flange Sealing of Pipelines For oil, gas, steam, chemical and process piping systems where high temperature and pressure are present.
Chemical Manufacturing Gasketing for reactors, columns, heat exchangers, and storage tanks handling aggressive chemicals.
Valves & Pumps Sealing of valve bonnets, pump casings, and flanged connections in high‑temperature fluid handling equipment.
Pressure Vessels Reliable sealing for boiler feedwater, steam drums, and pressure vessel manways.
Heat Exchangers Tube sheet and shell‑and‑tube heat exchanger gaskets for thermal processing units.
Refining & Petrochemical Flange seals in crude oil distillation, catalytic cracking, and hydrotreating units.
Technical Data – KXT 730 Reinforced Graphite Gasket
The performance of the KXT 730 varies with the type of metal reinforcement. The tables below provide typical physical and sealing properties for each configuration.
Physical Properties (Compressibility & Recovery)
| Reinforced Material | Pressure (N/mm²) | Compressibility (%) | Recovery (%) |
|---|---|---|---|
| Tanged Carbon Steel Sheet | ≥48 | 30-35 | 15-20 |
| SS304/SS316 Tanged Sheet | ≥48 | 30-35 | 15-30 |
| SS304/SS316 Flat Sheet | ≥48 | 30-40 | 10-15 |
| SS304/316 Mesh Sheet | ≥48 | 40-50 | 15-20 |
| Tin-plated Tanged Sheet | ≥48 | 25-30 | 10-15 |
Sealing Performance (Gas Permeability & Sealing Constants)
| Reinforced Material |
Gas Permeability (cm³/min) (t=1.5mm) |
Sealing Quality (t=1.5mm) | Sealing Constant | ||
|---|---|---|---|---|---|
| N₂ m³/h | Bumming oil A m³/h | "M" | "Y" | ||
| Tanged Carbon Steel Sheet | ≤0.8 | 30 | ≤0.5 | 3.0 | 9000 |
| SS304/SS316 Tanged Sheet | ≤0.8 | 60 | ≤0.5 | 2.5 | 4000 |
| SS304/SS316 Flat Sheet | ≤0.4 | 35 | ≤0.5 | 2.0 | 900 |
| SS304/316 Mesh Sheet | ≥1.0 | 70 | ≤0.5 | 3.0 | 5000 |
* Values are typical and may vary depending on material thickness and production batch. Contact our technical team for certified test reports and specific application data.
ISO 9001:2015 ASTM F104 DIN 28091 Pure Graphite (≥99%) No Adhesives / No Binders Eyelets Available
Why Choose Kaxite for Reinforced Graphite Gaskets?
Premium Graphite Quality – We use only high‑purity natural graphite flakes (≥99% carbon) with consistent properties and minimal ash content.
Multiple Reinforcement Choices – Tanged carbon steel, SS304/316 flat/tanged/mesh, and tin‑plated options available in stock.
Custom Sizes & Shapes – We can produce gaskets in any dimension, thickness, or configuration – including with eyelets and custom cut‑outs.
Factory‑Direct Pricing – As a China expanded graphite gasket manufacturer, we offer competitive prices without distributor mark‑ups.
Rigorous Quality Control – Each batch is tested for density, compressibility, recovery, gas permeability, and sealing constants per ASTM and DIN standards.
Global Supply & Support – We deliver to over 50 countries with fast lead times and responsive technical assistance (under 2 business hours).
Proven Performance: Kaxite reinforced graphite gaskets are specified by leading engineering firms and petrochemical operators for critical high‑temperature, high‑pressure sealing applications worldwide.
Quality Assurance & Compliance
Kaxite Sealing is an ISO 9001:2015 certified manufacturer. Our KXT 730 reinforced graphite gaskets are produced under strict process controls – from raw material inspection, compounding, lamination, to cutting and final inspection. Each gasket is tested for dimensional accuracy, density, thickness, compressibility, and recovery. We provide material test certificates (MTCs) and can supply third‑party inspection reports upon request. All products meet ASTM F104 and DIN 28091 standards.
- ISO 9001:2015
- ASTM F104
- DIN 28091
- 100% Density & Thickness Check
- Full Material Traceability
- Custom Reinforcement Available
Custom Manufacturing & OEM Services – Free Sample Available
As a professional reinforced graphite gasket manufacturer in China, we offer complete customisation to meet your exact specifications. Request a free sample or get a bulk quote today:
- Custom dimensions for any flange standard (ASME, DIN, JIS, BS, etc.)
- Custom thicknesses from 0.5 mm to 5.0 mm
- Choice of reinforcement: tanged CS, SS304, SS316, flat, mesh, tin‑plated
- With or without eyelets for handling
- Special shapes: oval, rectangular, square, or complex profile gaskets
- Private label packaging and custom branding available for distributors
Get a free sample or request a tailored bulk quote – our team responds within 24 hours with competitive factory pricing and lead‑time estimates.
Frequently Asked Questions About Reinforced Graphite Gaskets
- Q: What is the maximum temperature for KXT 730 gaskets?
- A: The KXT 730 can be used continuously up to 650°C in steam and up to 450°C in oxidising atmospheres. For reducing or inert atmospheres, higher temperatures may be possible – please consult our technical team for specific recommendations.
- Q: Which reinforcement type should I choose?
- A: The choice depends on your operating conditions. Tanged carbon steel is cost‑effective for general use. SS304/316 offers superior corrosion resistance. Flat sheet provides lowest gas permeability. Mesh offers higher compressibility for irregular flanges. Our engineers can help you select the optimal reinforcement.
- Q: Are these gaskets suitable for chemical service?
- A: Yes, graphite is highly resistant to most chemicals except strong oxidising agents (e.g., concentrated nitric acid, chromic acid, halogens). For aggressive chemical environments, SS316 reinforcement is recommended. Please consult our technical team for specific chemical compatibility.
- Q: What sizes and thicknesses are available?
- A: We can manufacture KXT 730 gaskets to any standard or custom dimension – from small pipe flanges to large vessel manways. Typical thicknesses range from 0.5 mm to 5.0 mm. Contact us with your drawing or specification for a custom quote.
- Q: What is the minimum order quantity (MOQ)?
- A: Our standard MOQ is 50 pieces for standard sizes, but we are flexible for sample orders, trial quantities, or urgent requirements. For custom manufacturing, MOQ may vary – contact us for a tailored quote.
Partner with Kaxite Sealing – your trusted reinforced graphite gasket manufacturer and supplier in China. With decades of graphite processing expertise, advanced lamination technology, and a steadfast commitment to quality, we deliver sealing solutions that perform reliably in the most demanding high‑temperature, high‑pressure, and chemical environments. Request a free sample or get a tailored bulk quote today – our engineers respond within 24 hours.
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