The rubber and tyre industry consumes approximately 90% of global carbon black production. Carbon black serves as the primary reinforcing filler in rubber compounds, dramatically improving tensile strength, tear resistance, abrasion resistance, and durability. The interaction between carbon black particles and rubber polymer chains creates a reinforced network that transforms rubber from a weak, plastic material into a strong, elastic engineering material.
Tyre tread compounds require high abrasion resistance for long wear life and good traction characteristics. High-surface-area carbon blacks (N110, N220, N234) provide maximum reinforcement and wear resistance.
Recommended Products: N220 (ISAF), N234 (ISAF-HS), N110 (SAF)
Heavy-duty tyres operate under high loads and require carbon blacks that balance reinforcement with low heat build-up to prevent thermal degradation.
Recommended Products: N220, N110, N234
Carcass compounds require good adhesion, fatigue resistance, and flexibility. Inner liner compounds need low air permeability and good processing characteristics.
Recommended Products: N330 (HAF), N660 (GPF), N326 (Low-Structure HAF)
Sidewall compounds must resist weathering, ozone attack, and flex fatigue while maintaining good appearance and extrusion characteristics.
Recommended Products: N550 (FEF), N330, N660
Engine mounts, suspension bushings, seals, gaskets, hoses, belts, and weatherstripping use carbon black for reinforcement, heat resistance, and durability.
Recommended Products: N550, N660, N774 (SRF), N330
Conveyor belts, hydraulic hoses, rubber sheeting, expansion joints, roll covers, and vibration dampers rely on carbon black for mechanical strength and service life.
Recommended Products: N330, N550, N660, N774
Rubber soles and components use carbon black for reinforcement, abrasion resistance, and consistent black coloration.
Recommended Products: N330, N550, N660
Rubber cable jackets incorporate carbon black for UV protection, conductivity control, and mechanical reinforcement.
Recommended Products: N550, N660, N774
Two-wheeler tyres require carbon blacks that provide good traction, wear resistance, and handling characteristics.
Recommended Products: N220, N330, N550
Tyre retreading operations use carbon black compounds similar to original tread formulations to restore worn tyres.
Recommended Products: N220, N234, N330
Grade |
ASTM Type |
Iodine Number (g/kg) |
DBP Absorption (cm³/100g) |
Nitrogen Surface Area (m²/g) |
Tint Strength (%) |
Primary Application |
|---|---|---|---|---|---|---|
N110
|
SAF
|
145
|
113
|
126 – 150
|
124
|
Premium tyre treads, racing tyres
|
N220
|
ISAF
|
121
|
114
|
106 – 125
|
115
|
Tyre treads, high-performance rubber goods
|
N234
|
ISAF-HS
|
120
|
125
|
106 – 125
|
118
|
High-performance tyre treads
|
N326
|
HAF-LS
|
82
|
72
|
76 – 85
|
103
|
Tyre carcass, wire adhesion compounds
|
N330
|
HAF
|
82
|
102
|
76 – 85
|
103
|
General purpose, tyre carcass, mechanical goods
|
N339
|
HAF-HS
|
90
|
120
|
86 – 95
|
110
|
Tyre treads, improved processing
|
N347
|
HAF-HS
|
90
|
124
|
86 – 95
|
105
|
Extruded rubber goods, tyre components
|
N550
|
FEF
|
43
|
121
|
39 – 45
|
—
|
Hoses, profiles, tyre inner liners
|
N660
|
GPF
|
36
|
90
|
30 – 40
|
—
|
Tyre carcass, sidewall, industrial rubber
|
N774
|
SRF
|
29
|
72
|
25 – 30
|
—
|
Gaskets, seals, molded goods
|
N990
|
MT
|
8
|
35
|
7 – 12
|
—
|
FKM compounds, high-loading applications
|
First Digit |
Classification |
Particle Size Range (nm) |
Typical Application |
|---|---|---|---|
1
|
SAF (Super Abrasion Furnace)
|
11 – 19
|
Premium treads
|
2
|
ISAF (Intermediate Super Abrasion Furnace)
|
20 – 25
|
Tyre treads
|
3
|
HAF (High Abrasion Furnace)
|
26 – 30
|
General purpose rubber
|
4 – 5
|
FF (Fine Furnace)
|
31 – 48
|
Mechanical goods
|
6
|
GPF (General Purpose Furnace)
|
49 – 60
|
Carcass, industrial rubber
|
7
|
SRF (Semi-Reinforcing Furnace)
|
61 – 100
|
Gaskets, seals
|
8
|
FEF (Fine Extrusion Furnace)
|
40 – 48
|
Extruded profiles
|
9
|
MT (Medium Thermal)
|
250 – 350
|
High loading compounds
|
Second Digit: Structure Level (0-3 = Low, 4-7 = Medium, 8-9 = High)
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