Asbestos Rubber Sheets KXB250
Model:KXT ARS
Asbestos Rubber Sheets Made of asbestos Fibre, rubber and heat-resisting packing material, compressing it to thick paper .
Model KXT ARS · KXB250
Asbestos Rubber Sheets KXB250 – Medium-Pressure Sealing Sheet for Water, Steam & Pipeline Joints
KXB250 Asbestos Rubber Sheets are made of asbestos fibre, rubber, and heat-resisting packing material, compressed into a dense sheet. KXB250 belongs to the KXB series covering KXB150 to KXB510, offering a full range of tensile strength and heat-pressure resistance grades. Manufactured by Kaxite, a professional China manufacturer and supplier of compression sheets and gasket materials.
Working Pressure
1.5 MPa
Max Temperature
150°C
Tensile Strength
9.0 MPa
Thickness
0.3–6.0 mm
The KXB250 Asbestos Rubber Sheet is made of asbestos fibre, rubber, and heat-resisting packing material, compressed into a dense thick sheet. The KXB250 Asbestos Rubber Sheet is widely used as a sealing material in the joints of pipelines and equipment for water, steam, and other media in medium-pressure service.
With a working pressure of 1.5 MPa and a maximum working temperature of 150°C, the KXB250 Asbestos Rubber Sheet is the balanced choice in the KXB family — delivering higher tensile strength than KXB150 and KXB200 while remaining cost-effective for medium-pressure pipeline sealing.
The KXB250 Asbestos Rubber Sheet is compliant with GB/T 3985-2008 and available in a full range of standard sizes. Request a quote →
KXB Family Selection Guide
Direct answer: The KXB series includes 8 grades from KXB150 to KXB510. KXB250 offers 9.0 MPa tensile strength and 45% rebound rate — a medium-grade sheet for general pipeline sealing in water and steam service.
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KXB250 Key Physical Properties
Direct answer: KXB250 offers 9.0 MPa tensile strength, 0.9 aging coefficient, 30.0% burning loss, 7–17% compressibility rate, 45% rebound rate, 50% creep relaxation rate, 1.6–2.0 g/cm³ density, and 500 ml/(h·mm) nitrogen leakage rate — compliant with GB/T 3985-2008.
Tensile Strength
9.0 MPa
Rebound Rate
45%
Compressibility
7–17%
Density
1.6–2.0 g/cm³
KXB250 Heat and Pressure Resistance
Direct answer: KXB250 withstands 290–300°C at 4–5 MPa for 30 minutes without puncture — reflecting its medium-grade position in the KXB series.
Test Temperature
290–300°C
Test Pressure
4–5 MPa
Hold Time
30 min
Result
No Puncture
Full KXB Series Physical Property Comparison
Direct answer: The KXB series ranges from KXB150 (5.0 MPa tensile) to KXB510 (21.0 MPa tensile). Higher grade numbers deliver higher tensile strength, higher heat-pressure resistance, and lower rebound rate.
| Item | KXB250 | KXB300 | KXB350 | KXB400 | KXB450 | KXB510 |
|---|---|---|---|---|---|---|
| Tensile Strength (MPa) ≥ | 9.0 | 12.0 | 15.0 | 18.0 | 21.0 | — |
| Aging Coefficient ≥ | 0.9 | 0.9 | 0.9 | 0.9 | 0.9 | 0.9 |
| Burning Loss (%) ≤ | 30.0 | 30.0 | 28.0 | 28.0 | 28.0 | 28.0 |
| Compressibility Rate (%) | 7–17 | 7–17 | 7–17 | 7–17 | 7–17 | 7–17 |
| Rebound Rate (%) ≥ | 45 | 40 | 40 | 40 | 40 | 35 |
| Creep Relaxation Rate (%) ≤ | 50 | 50 | 50 | 50 | 50 | 50 |
| Density (g/cm³) | 1.6–2.0 | 1.6–2.0 | 1.6–2.0 | 1.6–2.0 | 1.6–2.0 | 1.6–2.0 |
| Nitrogen Leakage Rate [ml/(h·mm)] ≤ | 500 | 500 | 500 | 500 | 500 | 500 |
| Heat & Pressure Resistance |
290–300°C 4–5 MPa |
340–350°C 7–8 MPa |
390–400°C 8–9 MPa |
440–450°C 11–12 MPa |
500–510°C 13–14 MPa |
— |
Standard: GB/T 3985-2008. All values per 30-minute hold test without puncture.
Standard Sizes – KXB250 Asbestos Rubber Sheets
Direct answer: KXB250 Asbestos Rubber Sheets are available in 8 standard sizes from 1270 × 1270 mm to 4600 × 1500 mm, with thickness from 0.3 mm to 6.0 mm. Custom sizes available on request.
Large Format
4600 × 1500 mm
Thickness 0.3–6.0 mm
Thickness 0.3–6.0 mm
Large Format
4100 × 1500 mm
Thickness 0.3–6.0 mm
Thickness 0.3–6.0 mm
Large Format
3800 × 2700 mm
Thickness 0.3–6.0 mm
Thickness 0.3–6.0 mm
Standard
2000 × 1500 mm
Thickness 0.5–6.0 mm
Thickness 0.5–6.0 mm
Standard
1500 × 1360 mm
Thickness 0.5–6.0 mm
Thickness 0.5–6.0 mm
Standard
3810 × 1270 mm
Thickness 0.5–6.0 mm
Thickness 0.5–6.0 mm
Standard
1270 × 1270 mm
Thickness 0.5–6.0 mm
Thickness 0.5–6.0 mm
Standard
1500 × 1500 mm
Thickness 0.5–6.0 mm
Thickness 0.5–6.0 mm
Other sizes optional or according to customer requirements. Sheets are packed in wooden pallets of approximately 1000 kgs or 2000 kgs net each.
Typical Applications of KXB250 Asbestos Rubber Sheets
Direct answer: The KXB250 Asbestos Rubber Sheet is used as a sealing material for equipment in water, steam, and other media, and for pipeline joints at medium pressure up to 1.5 MPa and 150°C.
Water Service Equipment
KXB250 Asbestos Rubber Sheets are used for flange sealing in water pipelines and water service equipment.
Steam Lines
KXB250 Asbestos Rubber Sheets are used as sealing material in medium-pressure steam lines up to 150°C.
Pipeline Joints
KXB250 Asbestos Rubber Sheets are used as sealing material in the joints of pipelines and process connections.
General Equipment
KXB250 Asbestos Rubber Sheets are used for sealing in general industrial equipment and machinery.
Why Choose Kaxite for KXB250 Asbestos Rubber Sheets
Direct answer: Kaxite is a professional China manufacturer and supplier of KXB250 Asbestos Rubber Sheets with ISO 9001:2015 certification, factory-direct pricing, 8 standard sizes, full KXB series supply, and fast global delivery.
Professional China Manufacturer Kaxite is a leading manufacturer and supplier of compression sheets and asbestos rubber sheets in China.
Full KXB Series Supply From KXB150 to KXB510 — one supplier for your entire asbestos rubber sheet range.
GB/T 3985-2008 Compliant KXB250 Asbestos Rubber Sheets are produced to GB/T 3985-2008 and tested per batch.
Custom Sizes Available Other sizes optional or according to customer requirements — cut to your drawing.
Competitive Price Factory-direct supply offers excellent value without compromising quality.
ISO 9001:2015 Certified Strict quality control ensures consistent product reliability.
Frequently Asked Questions About KXB250 Asbestos Rubber Sheets
- Q1What is KXB250 Asbestos Rubber Sheet used for?
- A: The KXB250 Asbestos Rubber Sheet is used as sealing material for equipment in water, steam, and other media, and for the joints of pipelines. The KXB250 Asbestos Rubber Sheet works at a pressure of 1.5 MPa and a maximum temperature of 150°C.
- Q2How is KXB250 Asbestos Rubber Sheet made?
- A: The KXB250 Asbestos Rubber Sheet is made of asbestos fibre, rubber, and heat-resisting packing material, compressed into a dense thick sheet.
- Q3What is the difference between KXB250 and other KXB grades?
- A: The KXB series includes 8 grades from KXB150 to KXB510. KXB250 is a medium-grade sheet with 9.0 MPa tensile strength, 45% rebound rate, and 290–300°C heat-pressure resistance. Higher grade numbers offer higher tensile strength and heat-pressure resistance.
- Q4What sizes are available for KXB250 Asbestos Rubber Sheets?
- A: KXB250 Asbestos Rubber Sheets are available in 8 standard sizes from 1270 × 1270 mm to 4600 × 1500 mm, with thickness from 0.3 mm to 6.0 mm. Other sizes are optional or according to customer requirements.
- Q5How are KXB250 Asbestos Rubber Sheets packed?
- A: KXB250 Asbestos Rubber Sheets are packed in wooden pallets of approximately 1000 kgs or 2000 kgs net each. Custom packaging is available on request.
- Q6What standard does KXB250 Asbestos Rubber Sheet meet?
- A: KXB250 Asbestos Rubber Sheets are produced to GB/T 3985-2008, with tensile strength, aging coefficient, burning loss, compressibility, rebound rate, creep relaxation rate, density, nitrogen leakage rate, and heat-pressure resistance tested per batch.
Partner with Kaxite Sealing – your trusted China manufacturer and supplier of the KXB250 Asbestos Rubber Sheets, KXB150/KXB200/KXB300/KXB350/KXB400/KXB450/KXB510 Asbestos Rubber Sheets, and other compression sheet materials. Buy high quality products made in China at competitive price. With reliable quality, factory-direct supply, and fast delivery, Kaxite provides the sealing solutions demanded by water, steam, pipeline, and general industrial applications worldwide.
Last reviewed: September 2026 · Kaxite Sealing Technical Team
Hot Tags: Asbestos Rubber Sheets KXB250, China, suppliers, manufacturers, factory, buy, price, made in China
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