AvCarb®Carbon Fabric

Carbon-paper-Products

AvCarb® has been producing high quality polyacrylonitrile (PAN) carbon fiber products since 1978. Drawing on unique carbon fabric processing technology, AvCarb® carbon fabrics are designed to meet the demanding requirements of friction, gas transport, motion control, electrical and elevated temperature applications.

AvCarb®’s proprietary AccuCarb™ continuous carbonization process provides an 88-95% carbon content and are called “HC” grade fabrics. Vacuum batch baking at extremely high temperature results in our “HCB” grade fabric, a 99+% carbon fabric with graphitic properties. Custom carbon contents are available upon request.

Produced in long, continuous rolls, AvCarb® carbon fabrics are easy to store, handle and use. Their uniform properties over the length and width of each roll, and from roll to roll, not only assure product consistency but also lend themselves to easy integation with continuous manufacturing processes.

 

Applications

Fabric StyleApplication
1071 HCBGas Diffusion Layer(PEM Fuel Cells), Other Electrochemical Applications
1209 HCAblative Insulation
(Solid Fuel Rocket Motors)
1209 HCBCarbon-Carbon Composite Reinforcement, Tooling, Composites
1698 HCBCarbon-Carbon Composite
Reinforcement, Tooling, Composites
1243 HCBCarbon-Carbon Composite
Reinforcement, Tooling, Composites

Spec Sheet

1071124375751698120911851186
GradeHCB*HCB*HCB*HCB*HCB*HCB*HCB*
Weave ConstructionPlainPlainPlain8 Harness SatinPlainPlain2x2 Basket
Weave Count
Warp - per cm (inch)
Fill - per cm (inch)
19.3(49)
18.5(47)
11.8(30)
11(28)
9.1(23)
7.9(20)
15.0(38)
15.0(38)
9.8(25)
7.5(19)
9.1(23)
6.7(17)
8.3(21)
8.3(21)
Basis Weight
g/m2(oz/yds)
132(3,9)220(6.5)254(7.5)295(8.7)295(8.7)335(9.9)518(15.3)
Thickness @ 1PSI
microns(mils)
356(14.0)700(27.6)762(30)889(35)645(25.4)876(34.5)**1321(52)
Typical Width
cm (inches)
117(46)117(46)117(46)117(46)117(46)117(46)117(46)

Properties

GradeHCHCB
Diameter
microns(mil)
7.57.5
Cross SectionRoundRound
Density
g/cm3
1.72-1.751.72-1.77
Surface Area
g/cm2
0.62
Tensile Modules
mN/cm2(ksi)
211(306)192.5(279)
%Elongation @ Break1.000.72
Electrical Resistivity
ohm-cm
Controllable1.1 x 10-3
Thermal Oxidative Stability
w t loss/hr@500°C in air
Oxidizes<1.0
Carbon Content88-9499.5

Composite Data

Grade1071HCB1243HCB1698HCB
Flexural Strength
ksi(MPa)
50 (345)38 (262)48 (331)
Flexural Modulus
msi (Gpa)
7.5 (51.7)6.0 (41.4)8.9 (61.4)
Interlaminar Shear
ksi(MPa)
5.0 (34.5)4.5 (31)4.5 (31)
Density
g/cm3
1.51.561.56
Fiber Volume (%)505555
Cured Ply Thickness
microns (mils)
102 (4.0)229 (9.0)279 (11.0)