Pitch-based Carbon Fiber(CF)DIALEAD^™

DIALEAD is a pitch-based carbon fiber supported by many proprietary technologies as a result of coal chemistry by Mitsubishi Chemical over many years. The product is widely applied to fields such as aerospace, industry, and sports.

Product Lineup

Continuous Fiber
Chopped Fiber
Milled Fiber
Fabric

Key features and their characteristics
Applications
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Key features and their characteristics

High Purity

DIALEAD has a high carbon content ratio, maintaining chemical stability of composite materials.
It has a structure in which graphite plates are highly oriented in the vertical direction of fiber.
This results in such features as lightweight, high stiffness, high thermal conductivity, and ultra low thermal expansion coefficient.

High Modulus

A full range is available to meet required strength and modulus.

Plotted data of modulus of elasticity in tension and strength

*Based on a survey by Mitsubishi Plastics

High thermal conductivity

Has performance equivalent to or better than copper, aluminum, and iron.

Plotted data of thermal conductivity and electrical resistance

*Based on a survey by Mitsubishi Plastics

Product Lineup

Continuous fiber

Suitable for various fabrics, prepreg, and filament winding.

Standard grade

K1352U, K1392U, K13C2U, K13D2U, K63712, K63A12

For the modulus of elasticity in tension and tensile strength of each grade, please refer to the relevant Physical Properties.

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Chopped fiber

Widely applied to thermoplastic resin, etc. to improve electric and thermal conductivity and mechanical strength.

Subject plastics

ABS, PP, PC, POM, mPPO, PBT, PA, LCP, PPS, PES, PEEK, PEI, etc.

For the modulus of elasticity in tension and tensile strength of each grade, please refer to the relevant Physical Properties.

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Milled fiber

When mechanical strength is very different from that of carbon fiber or when carbon fiber is added to a matrix with low viscosity at the time of kneading, composite materials with excellent dispersibility can be obtained by making fiber short beforehand.

Standard grade

K223QM, K6371M, K223HM

For the modulus of elasticity in tension and tensile strength of each grade, please refer to the relevant Physical Properties.

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Fabric

We offer various fabrics, UD cloths, and prepregs.

Standard grade

FP3A107, F637400, FT37Y960, FT3C224

For the modulus of elasticity in tension and tensile strength of each grade, please refer to the relevant Physical Properties.

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Applications

Aerospace

The coefficient of thermal expansion can be controlled by optimizing carbon fiber mixing, and can be made to zero, depending on design.
In addition to low thermal expansion, lightweight, and high stiffness, heat sink and other thermal controls can be realized, utilizing the product's property of thermal conductivity only in the orientation of the fiber.

Artificial satellite

©Akihiro Ikeshita

Structural materials for the antenna of large radio telescope

Courtesy of Vertex GmbH.

Construction and civil engineering

Our products are used for antiseismic reinforcement and repair of structures, taking advantage of their lightweight, high stiffness and corrosion resistance.

Deck reinforcement

Bridge pier reinforcement

Automobiles / vehicles

Propeller shaft

Thanks to the weight reduction and high stiffness characterizing DIALEAD, the critical number of revolutions can be increased.
In addition, joints can be eliminated or their diameter can be reduced.

C/C materials (Carbon / carbon fiber composite materials)

Excellent strength and wear resistance under high temperatures is the reason for the materials application in a wide range of braking materials from racing cars to airplanes.

Courtesy of Moriwaki Engineering Co., Ltd.

Industrial equipment

High performance carbon fiber composite roller for industrial use

With little run-out, our product enables high precision, wide film production, and printing.

Beams for transfer machines

High stiffness and weight reduction achieve vibration damping in a short period of time, improving tact time and productivity.

Courtesy of Daimler Chrysler Aerospace, Dornier GmbH, and Mueller Weingarten AG.

Pick for transferring semiconductor wafer

Robot hand for liquid crystal glass

In addition to lightweight and high stiffness, the excellent vibration damping property realizes the improvement of productivity in the field of mechatronics.

Courtesy of Yaskawa Electric Corporation

Sports, etc.

Golf club shaft

Contact Us

Carbon Fiber Products Department
Carbon Fiber Sales Group

Catalog / Data

Products

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Continuous Fiber

[Standard grade]
Continuous fiber	Grade	Tensile modulus	Tensile strength	Elongation	Density	Yield	Thermal conductivity	Volume resistivity
Continuous fiber	[Unit]	[GPa]	[MPa]	[%]	[g/cm³]	[g/1000m]	[W/m･K]	[μΩm]
2K Type	K1352U	620	3,600	0.6	2.12	270	140	6~7
	K1392U	760	3,700	0.5	2.15	270	210	5
	K13C2U	900	3,800	0.4	2.20	270	620	-
	K13D2U	935	3,700	0.4	2.21	365	800	-
12K Type	K63712	640	2,600	0.4	2.12	2,000	140	6~7
12K Type	K63A12	790	2,600	0.3	2.15	1,950	220	4~5

*This information can be used for material selection only.

[Laminate properties] (2K)

Style: Uni-directional [0] t
Resin: Mitsubishi Plastics 934 (350°F cure epoxy)

				K1352U	K1392U	K13C2U	K13D2U
Longitudinal	Tensile	Strength	[MPa]	2,000	2,100	2,200	1,800
	Tensile	Modulus	[GPa]	380	460	560	560
	Compressive	Strength	[MPa]	450	400	380	340
	Compressive	Modulus	[GPa]	250	420	560	560
	ILSS		[MPa]	75	70	50	40
	CTE (Temp. 50 - 125℃)		[x10^-6/K]	-1.1	-1.2	-1.2	-1.2
Tranverse	Tensile	Strength	[MPa]	40	35	30	25
Tranverse	Tensile	Modulus	[GPa]	6.2	6.0	5.4	5.1

[Laminate properties] (12K)

Style: Uni-directional [0] t
Resin: Mitsubishi Plastics AY33 (250°F cure epoxy)

				K63712	K63A12
Longitudinal	Tensile	Strength	[MPa]	1,500	1,500
	Tensile	Modulus	[GPa]	370	470
	Compressive	Strength	[MPa]	440	380
	Compressive	Modulus	[GPa]	330	470
	ILSS		[MPa]	75	70
	CTE (Temp. 50 - 125℃)		[x10^-6/K]	-1.1	-1.2
Tranverse	Tensile	Strength	[MPa]	35	26
Tranverse	Tensile	Modulus	[GPa]	5.4	5.2

*Data are average results of experiments made on standard procedures and subject to normal manufacturing variation.
Tensile and compressive data normalized by 60% fiber volume.

			K223SE	K223Y1	K223QE	K223QG	K223HG	K223HE	K6371T
Bulk properties	Length	[mm]	6	6	6	6	6	6	6
	Bulk density	[g/l]	>400	>400	>400	>400	>400	>400	>400
	Shape		Round	Round	Round	Round	Round	Round	Flat
	Sizing amount	[%]	4~6	4~6	0	0	0	0	1~3
Filament properties	Filament diameter	[μm]	11	13	11	11	11	11	11
	Thermal conductivity	[W/m・K]	20	<5	20	140	540	550	140
	Tensile modulus	[GPa]	185	50	185	590	900	900	640
	Tensile strength	[MPa]	2,350	1,000	2,350	3,230	3,800	3,800	2,600
	Elongation	[%]	1.1	1.8	1.1	0.6	0.3	0.3	0.4
	Density	[g/cm³]	2.0	1.5	2.0	2.1	2.2	2.2	2.1

Grade	Structure	FAW [g/m²]	Uni directional
FP3A107	Plain weaved	75	K13A1L
F637400	UD	400	K63712
FT37Y960	Twill weaved	960	K63712
FT3C224	Twill weaved	240	K13C2V

Pitch-based Carbon Fiber(CF)DIALEAD™

Key features and their characteristics

High Purity

High Modulus

High thermal conductivity

Product Lineup

Continuous fiber

Standard grade

Chopped fiber

Subject plastics

Milled fiber

Standard grade

Fabric

Standard grade

Applications

Aerospace

Artificial satellite

Structural materials for the antenna of large radio telescope

Construction and civil engineering

Deck reinforcement

Bridge pier reinforcement

Automobiles / vehicles

Propeller shaft

C/C materials (Carbon / carbon fiber composite materials)

Industrial equipment

High performance carbon fiber composite roller for industrial use

Beams for transfer machines

Pick for transferring semiconductor wafer

Robot hand for liquid crystal glass

Sports, etc.

Golf club shaft

Contact Us

Catalog / Data

Products

Continuous Fiber

Chopped Fiber

Milled Fiber

Fabric

Pitch-based Carbon Fiber(CF)DIALEAD^™