Carbon Fiber Composites

Carbon Fiber Composite Carbon-Carbon CFC

What is Carbon Fiber Composite?

Let’s first start with the nomenclature. Carbon Fiber Composite is also referred to as Carbon-Carbon Composite, CFC, or Carbon Reinforced Matrix Composite. All of these aliases refer to this product.

Originally developed for use in the aerospace sector, CFC has become an extremely cost-effective solution for furnace fixture applications. The unique attributes of CFC offer advantages compared to metal and graphite fixtures. The material can be provided in a wide variety of sizes and geometric shapes.

CFC Items we carry are as follows: Multi-Ply Sheets, Channels, Threaded Rods, Smooth Rods, Square Nuts, Plates, and Survey Racks. We also supply custom CFC as seen below.

Custom Carbon Fiber Composite Fabrications

Fabricated shapes include but are not limited to: Sheets, Angles, U-Channels, Rings, Tubes, Pipes, Cylinders, Bolts, Washers, Heating Elements, Shelving, Survey Racks and Baskets for heat-treating.

Benefits

High strength and modulus.
Fire resistant and dimensionally stable.
Configuration of Carbon Fabric.
Fatigue and fracture resistant. Cracks will not propagate as with molded graphite fixtures.
Lightweight and low thermal mass permitting one to load more parts in each furnace due to the material’s excellent strength to weight ratio while reducing cycle time.
Thermal deformation resistant. CFC will remain flat and increase in strength at elevated temperatures reducing scrap and maintaining stricter part tolerances in comparison to metal which warps over time.

Carbon Fiber Composites Carbon-Carbon CFC

Applications

Aerospace and military.
Heat treating and furnace fixtures.
Primary and secondary structures.
Windmill blades.
Brake linings, automotive, and tooling.
Solid rocket nozzles.

Useful Charts

Woven CFC Grade Properties

Typical Properties	Units	Fiber Axis	CM-147-12	CM-157-12	CM-158-12	CM-257-6	CM-258-12	CM-160-HW
Density	g/cm³		1.47	1.55	1.50	1.57	1.55	1.63
Flexural Strength	psi MPa	⊥	18,130 125	21,755 150	20,305 140	26,832 185	23,206 160	26,107 180
Flexural Modulus	ksi GPa	⊥	5,801 40	7,252 50	6,527 45	9,428 65	7,252 50	6,527 45
Interlaminar Shear Strength	psi MPa		1,310 9	1,310 9	1,160 8	1,310 9	1,160 8	2,031 14
Compressive Strength	psi MPa	∥	14,504 100	19,580 135	14,504 100	19,870 137	14,504 100	11,300 115
Thermal Conductivity	W/mK	∥ ⊥	31 6	32 7	31 6	33 7	31 6	34 10
CTE (20 - 1,000℃) (RT - 1,300℃)	x 10 ^-6/K x 10 ^-6/K	∥ ⊥	0.5 7.0	0.5 7.0	0.5 7.0	0.5 7.0	0.5 7.0	0.9 9.5
Electrical Resistivity	μΩm	∥	34	31	35	30	35	n/a
Notes:	∥ Parallel to fiber Axis ⊥ Perpendicular to Fiber Axis

Chopped Fiber CFC Grade Properties

Typical Properties		Units	PC70	PC70H	PC40	PC30
Fiber Direction / Length			Random / Short	Random / Short	Random / Short	Random / Short
Bulk Density		g/cm³	1.65	1.7+	1.65	1.65
Flexural Strength		MPa	200	220	180	180
Tensile Strength		MPa	120	145	160	120
Youngs Modulus		GPa	45	50	75	45
Compressive Strength		MPa	120	200+	190	110
Interlaminar Shear Strength		MPa	19	19+	16	16
(Room Temp‑1300℃) Coefficient of Thermal Expansion	∥ ⊥	10 ^-6/℃ 10 ^-6/℃	1.3 10	1.3 10	0.3 10.6	1.1 10
Thermal Conductivity	∥ ⊥	W/m · k W/m · k	35 12	35 12	130 29	100 20
Specific Heat	20℃	J/Kg · K	720	720	740	720
Electrical Resistivity		μΩcm	2000	1800	1200	1400
Charpy Impact Strength		KJ/m²	20	20	20	20
Hardness		Shore D	75	75	75	70
Temperature Rating		℃ ℉	2200 3992	2200 3992	2400 4352	2400 4352
Notes:		∥ Parallel to fiber Axis ⊥ Perpendicular to Fiber Axis * Possible to use at higher temperatures at the users discretion. Information provided is average and not guaranteed.

CFC Channels Info & Pricing

Product	Thickness Inches	Width Inches	Height Inches	Length Inches	Price USD
L-Channel	0.075"	2.5"	2.5"	39.4"	$310.00
U-Channel	0.05"	1.5"	1.5" x 1.5"	39.4"	$230.00
U-Channel	0.05"	1.5"	2.0" x 2.0"	39.4	$260.00
U-Channel	0.05"	2.0"	2.0" x 2.0"	39.4"	$350.00
Need a custom size? Contact us for a quote.

CFC Threaded Rods Info & Pricing

Product	Thickness/ Threads	Length Inches	Price USD
Standard All-Thread Threaded Rod	1/4" - 20	39.4"	$150.00
	5/16" - 18	39.4"	$175.00
	3/8" - 16	39.4"	$210.00
	1/2" - 13	39.4"	$280.00
	5/8" - 11	39.4"	$340.00
	3/4" - 10	39.4"	$360.00
	1" - 8	39.4"	$490.00
Metric All-Thread Threaded Rod	M6 - 1	39.4"	$145.00
	M8 - 1.25	39.4"	$185.00
	M10 - 1.50	39.4"	$225.00
	M12 - 1.75	39.4"	$265.00
Need a custom size? Contact us for a quote.

CFC Smooth Rods Info & Pricing

Product	Thickness/ Threads Inches	Length Inches	Price USD
Standard Smooth Rods	1/4"	39.4"	$145.00
	5/16"	39.4"	$170.00
	3/8"	39.4"	$205.00
	1/2"	39.4"	$275.00
	3/4"	39.4"	$355.00
	1"	39.4"	$455.00
Metric Smooth Rods	M6	39.4"	$140.00
	M8	39.4"	$180.00
	M10	39.4"	$220.00
	M12	39.4"	$260.00
Need a custom size? Contact us for a quote.

CFC Square Nuts Info & Pricing

Product	Thread Size	Width Inches	Length Inches	Height Inches	Price USD
Standard Square Nuts	1/4"-20	1/2"	1/2"	1/4"	$5.00
	5/16"-18	5/8"	5/8"	5/16"	$6.00
	3/8"-16	3/4"	3/4"	3/8"	$7.00
	1/2"-13	1"	1"	0.5"	$10.00
	1/2"-13	1.5"	1.5"	0.5"	$13.00
	5/8"-11	1.5"	1.5"	0.4"	$16.00
	3/4"-10	1.5"	1.5"	0.5"	$19.00
	1"-8	2"	2"	0.5"	$25.00
Metric Square Nuts	M6	1/2"	1/2"	0.2"	$5.00
	M8	3/4"	3/4"	0.2"	$7.00
	M10	1"	1"	0.4"	$10.00
	M12	1.5"	1.5"	0.4"	$13.00
Need a custom size? Contact us for a quote.

CFC Plates Info & Pricing

Material Grade	Thickness Inches	Width Inches	Length Inches	Regular Price
PC 70 (CHOPPED)	0.25"	44"	44"	$3220.00
CM 147 (WOVEN)	0.025"	48"	48"	$485.00
	0.050"	48"	48"	$690.00
	0.125"	48"	72"	$2500.00
	0.25"	48"	48"	$4030.00
Custom size plates available. Contact us for a quote.

Ready to order Carbon Fiber Composite?

CFC or Carbon-Carbon Composite parts can be machined to print. Please send your drawings or geometric specifications.
Densities up to 1.85 g/cc available for high performance CFC’s
Higher density machines cleaner, but higher pricing.
3D weave available for certain shapes
Silicon Carbide matrix and coating available for improved abrasion resistance and thermal conductivity.
$100.00 minimum order for CFC.
Thread quality and strength of our All-Thread Rods and Nuts are excellent, being made with Chopped Fiber CFC PC70.
Volume discounts for large orders. Contact us.
If you have any additional questions or need a custom quote, we are always here to help.