Carbon Or Graphite Or Coke

Your Professional Carbon Or Graphite Or Coke Supplier

UNG group was founded in 2003, we specialized in the manufacturing of recarburizer for Steel industry, and investmenting the plants of calcined bauixte, Calcium aluminate and Ceramic sand. It characterized by its continual effort to update and improve its products range, and by the search for solutions to the problems and demands posed by its customers.OUR PRODUCT Carbon&Graphite Recarburizer, Calcium Alumin, Calcium Aluminate (Fused, Sintered), Calcined Bauxite, Mullite (Sintered, Fused), Ferro Alloys, Inoculant, Nodulizer, Black Silicon Carbide, Steel Shot.

Why Choose Us

Production Market

We have built a stable clientele worldwide, USA, Mexico, Spain, Germany, Italy, Poland, Middle East, Egypt, India, Southeast Asia.etc.

Our History

UNG group was founded in 2003 ,we specialized in the manufacturing of recarburizer for Steel industry, and investmenting the plants of calcined bauixte ,Calcium aluminate and Ceramic sand.

Our Service

Contact customers to understand their needs and make quotations. Confirm the order, and produce, pack and ship in time.

Our After-sales

Taking the initiative to take responsibility, the group constantly strives to update and improve the product range and seek solutions to solve the problems and needs raised by customers.

Carbon Or Graphite Or Coke

Characteristic Of Silicon Carbide

Property	Minimum Value (S.I.)	Maximum Value (S.I.)	Units (S.I.)	Minimum Value (Imp.)	Maximum Value (Imp.)	Units (Imp.)
Atomic Volume (average)	0.0062	0.0064	M3/kmol	378.347	390.552	In3/kmol
Density	3	3.2	Mg/m3	187.284	199.77	lb/ft3
Energy Content	150	200	MJ/kg	16250.8	21667.7	Kcal/lb
Bulk Modulus	181	189.8	GPa	26.2518	27.5281	106 psi
Compressive Strength	3047.4	3359.9	MPa	441.988	487.312	Ksi
Ductility	0.00076	0.00084		0.00076	0.00084	NULL
Elastic Limit	304.7	336	MPa	44.193	48.7327	Ksi
Endurance Limit	259.17	302.37	MPa	37.5894	43.855	Ksi
Fracture Toughness	4.28	4.72	MPa.m1/2	3.895	4.29542	Ksi.in1/2
Hardness	23800	26250	MPa	3451.9	3807.24	Ksi
Loss Coefficient	2e-005	5e-005		2e-005	5e-005	NULL
Modulus of Rupture	365.7	403.2	MPa	53.0403	58.4792	Ksi
Poisson's Ratio	0.13	0.15		0.13	0.15	NULL
Shear Modulus	171.15	179.8	GPa	24.8232	26.0778	106 psi
Tensile Strength	304.7	336	MPa	44.193	48.7327	Ksi
Young's Modulus	390.2	410	GPa	56.5937	59.4654	106 psi
Latent Heat of Fusion	930	1050	KJ/kg	399.826	451.416	BTU/lb
Maximum Service Temperature	1738	1808	K	2668.73	2794.73	°F
Melting Point	2424	2522	K	3903.53	4079.93	°F
Minimum Service Temperature	0	0	K	-459.67	-459.67	°F
Specific Heat	663	677	J/kg.K	0.513068	0.523902	BTU/lb.F
Thermal Conductivity	90	110	W/m.K	168.483	205.924	BTU.ft/h.ft2.F
Thermal Expansion	2.7	2.8	10-6/K	4.86	5.04	10-6/°F
Breakdown Potential	5	10	MV/m	127	254	V/mil
Dielectric Constant	7	9		7	9	NULL
Resistivity	1e+009	3.16e+010	10-8 ohm.m	1e+009	3.16e+010	10-8 ohm.m

Features of Graphitized Petroleum Coke

High Carbon Content 99% – 99.9%
Low Sulphur 0.01 % – 0.05%
Low Nitrogen 0.005% – 0.03%

Specification of Graphitized Petroleum Coke

Item	Value
Place of Origin	China
Application	Carrier Of Chemical Activator
Shape	Carbon Blocks
	Size 1-5mm 2-6mm
Product Type	Carbon Additive
	98.5%
	1300~1400
	0.05-0.8%
	0.03% MAX
	0.01% MAX
	<0.5% <6%
	0.5%max
Color	Black Color
Size	0-1mm 1-3mm 1-5mm 3-8mm 5-10mm 5-20mm or other
Package	Jumbo bag,ton bag
Application	Metallurgical chemical industry
Material	Anthracite coal,Metallurgical coke
Product name	CPC

The Important Applications Of Silicon Carbide

Non-ferrous Metal Metallurgy Industry
Silicon carbide with high-temperature resistance, high intensity, good thermal conductivity, and impact resistance can be used as high-temperature indirect materials such as pot distillation furnace, a rectification furnace tray, aluminum electrolyzer, copper melting furnace lining, zinc powder furnace arc plate, thermocouple protective tube, etc.

Smelting And Mineral Processing Industry
Silicon carbide is second only to diamond in hardness and has a strong wear-resistance function, so it is the ideal material for wear-resistant pipe, impellers, pump rooms, cyclones, and the inner lining of ore buckets.

Green Energy
Silicon carbide can play a supporting role in the development of green energy. Nowadays, coal and oil are more and more scarce, and the energy crisis is a great test for all countries in the world. The development of silicon carbide can greatly improve the efficiency of power transmission and utilization, and the energy crisis may be alleviated.

Application of Graphitized Petroleum Coke

Steel and Foundry Industry:GPC is widely used as a carburizing agent in the production of high-quality steel.It is added to the steelmaking process to increase the carbon content, enhancing hardness and strength.GPC is also used in the production of cast iron and other alloys.

Aluminum Industry:GPC can be used as a recarburizer in the production of aluminum.It helps control the carbon content during the smelting process, ensuring the desired properties in the final aluminum product.

Graphite Electrode Production:GPC is a key raw material for the production of graphite electrodes used in electric arc furnaces.Graphite electrodes are essential in the production of steel through the electric arc furnace route.

Friction Materials:GPC is used in the production of friction materials, such as brake linings and clutches.Its high carbon content and thermal stability make it suitable for applications where high-temperature resistance is required.

Refractory Industry:GPC can be incorporated into refractory materials to improve their thermal and electrical conductivity.It is used in the production of refractory bricks and other high-temperature-resistant materials.

Chemical Industry:GPC is used in certain chemical processes as a reducing agent.It may find applications in the production of certain chemicals and as a catalyst support.

Technical Parameters of Silicon Carbide

Lattice Parameters: Ensuring that the lattice constant of the substrate matches that of the epitaxial layer to be grown is crucial to minimize defects and stress.

Stacking Sequence: The macroscopic structure of SiC consists of silicon and carbon atoms in a 1:1 ratio. However, different atomic layer arrangements result in various crystal structures.

Mohs Hardness: Determining the hardness of the substrate is essential as it affects the ease of processing and wear resistance.

Density: The density impacts the mechanical strength and thermal properties of the substrate.

Thermal Expansion Coefficient: This refers to the rate at which the substrate’s length or volume increases relative to its original dimensions when the temperature rises by one degree Celsius. The compatibility of the thermal expansion coefficients of the substrate and the epitaxial layer under temperature variations influences the thermal stability of the device.

Refraction Index: For optical applications, the refractive index is a critical parameter in the design of optoelectronic devices.

Dielectric Constant: This affects the capacitive properties of the device.

Thermal Conductivity: Crucial for high-power and high-temperature applications, thermal conductivity influences the cooling efficiency of the device.

Band-gap: The band-gap represents the energy difference between the top of the valence band and the bottom of the conduction band in semiconductor materials. This energy difference determines whether electrons can transition from the valence band to the conduction band.

Break-Down Electrical Field: This is the maximum voltage that a semiconductor material can withstand.

Saturation Drift Velocity: This refers to the maximum average velocity that charge carriers can attain in a semiconductor material when subjected to an electric field. When the electric field strength increases to a certain extent, the carrier velocity no longer increases with further increases in the field, reaching what is known as the saturation drift velocity.

Packing & Delivery

productcate-554-208

FAQ

Q: What is the compressive strength of SiC?

A: The average pore size in the preform and the compressive strength of Al-75 wt% SiC composite were 429 μm and 320 MPa, respectively whereas in Al-67 wt% SiC, the average pore size and the compressive strength were 257 μm and 280 MPa, respectively.

Q: What is the hardness of silicon carbide?

A: SiC is the third hardest compound on earth, making it less susceptible to deformation caused by compression. Its new Mohs hardness is 13, with only diamond (new Mohs hardness: 15) and boron carbide (new Mohs hardness: 14) having higher hardness.

Q: What is the mechanical strength of silicon carbide?

A: The fully dense silicon carbide displays high fracture toughness (6.8 MPa m0.5), Young's modulus (440 GPa), flexural strength (490 MPa) and hardness (32 GPa).

Q: What are the unique properties of silicon carbide?

A: Silicon carbide is an important semiconductor material with unique physical and chemical properties such as high thermal conductivity, thermal and mechanical stability, hardness, chemical inertness.

Q: What is graphitized petroleum coke used for?

A: It can be used as a carbon raiser (Recarburizer) to produce high-quality steel, cast iron, and alloy. As a high-purity carbon material, it can be used for producing sealing and lubricating materials, electricity brushes, compound brakes and etc. It can also be used in plastic and rubber as an additive.

Q: What is calcined petroleum coke used for?

A: Calcined petroleum coke (CPC) is the product from calcining petroleum coke. This coke is the product of the coker unit in a crude oil refinery. The calcined petroleum coke is used to make anodes for the aluminium, steel and titanium smelting industry and as the feed stock for the production of synthetic graphite.

As one of the leading carbon or graphite or coke manufacturers and suppliers in China, we warmly welcome you to buy high-grade carbon or graphite or coke for sale here from our factory. All our products are with high quality and competitive price.Graphitized Petroleum Coke, Injection Carbon And Semi coke, carbon composites