black silicon carbide

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Specifications
Black silicon carbide
1competitive price&good quality
2.SiC: 98.5%min;
3.high temperature refractoriess

Specifications

Black silicon carbide 1competitive price&good quality 2.SiC: 98.5%min; 3.high temperature refractoriess

Black silicon carbide

Introduction

Black silicon carbide, a kind of man-made material that is made from quartz sand, petroleum coke. The material goes through high temperature electric resistance type furance and cooling.

Excellent raw material makes good hardness and toughness,high efficiency and durability.

Specification

  • Stable chemical property

  • Suitable hardness and brittleness;

  • Good cutting shape

  • Competitive price with quick delivery time;

Physical Index

  • Crystal System: Hexagonal;

  • Color: black

  • True density: 3.10g/cm3

  • Mohs hardness: 9.1

  • Mircor hardness: HV3100-3200

Chemical Compostion

Grit Size           SiC                    F.C                 Fe2O3

  F24               98.71%            0.11%                0.21%

  F90               98.51%            0.15%                0.18%

  F150             98.48%            0.16%                 0.17%

Size Available

  • F12-F1200,P12-P2500;

  • 0-1mm,1-3mm,5-10mm,200-0meh;

  • Other size is available as required;

Application

  • Grinding non-ferrous material, stone, leather, rubber, and other hard metals;

  • Grinding wheels, abrasive belts;

  • As main material of deoxidier;

  • Founctional ceramic; Metallurgy;

  • High advanced refractory material

Packing: 25kg/bag,1000kg/big bag;

             1000kg/big bag; Or with one pallet packing;

             other packing is allowed as required;

Payment: T/T, L/C, D/A,D/P;


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Q:In entering fire door, which material does well?
Entering door has two kinds: security doors, fire security door. The pure fire door does not have anti-theft function. In the relevant technical standards of fire doors : when in the fire, it can make residents in a few seconds or 1 minutes forget to open the door... The material of fire door, fire door has steel fire door and wooden fire door. There is no doubt that wooden fire door can't be used as entering door. In the steel fire door, two layers of steel plate in the clip is flame retardant material.
Q:Does hardware construction materials contain refractory?
refractory includes one kind of building materials. It is a special material and not commonly used.
Q:What is high alumina refractory?
High alumina refractory: High alumina refractory products, with high refractoriness, compressive strength and refractoriness under load, it is used for masonry of a variety of large-scale blast furnaces such as steel furnace, air heating furnace and electric furnace, and for high-temperature parts of thermal equipment like rotary kilns.
Q:How to choose thermal insulation materials for flood heating?
1, Select the appropriate floor material suitable for radiant floor heating. The floor radiant heating system mainly transfer heat through the ground concrete and the ground material to the room. Therefore in the heating season the ground material will always be heated during heating season. Therefore, it is better to choose stone materials and compround floor plate insensitive to tenmperature change with good heat dissipation and functions. Currently, wood floor is not suitable for the ground radiant heating system. 2, choose the pipe with anti permeability performance. Plastic floor heating pipe itself has a certain air permeability, if oxygen penetrates in it is prone to oxygen erosion and system's mental device will be eroded, resulting in the risk of leakage. Therefore in order to ensure the reliable operation of the heating system, the selected pipe must have anti oxygen permeation performance, and meet the standard stipulated by the DIN4726 oxygen permeation quantity: and be less than 0.1mg\L.d at 40 C.
Q:How to apply the alumina powder on refractories?
The most common one in use is the refractory bricks.
Q:What's the fire endurance of fire windows?
Fire endurance of fire windows: A class fire window: no less than 1.2h; B class fire window: no less than 0.9h; C class fire window: no less than 0.6h. Technical requirements: 1. Materials and fittings: (1) Window frame should adopt the steel frame or wood frame with certain strength so as to guarantee the integrality and stability of the fitting; (2) Steel frame and mound layer can choose the galvanized steel sheet or stainless steel sheet. Its selection standard is in line with provisions of Article 5.1 in GB12955 "General Technical Requirements on Steel Fire Doors"; (3) Selection standard of wood frame and mound layer should be consistent with the provisions of Article 5.1.1 in GB14101 "General Technical Requirements on Wood Fire Doors"; (4) Filler material inside the steel frame and wood frame should be incombustible material; (5) Fireproof glass can choose the qualified product with no influence on the fire resistance test of the fire window, and its light transmittance should be no less than 75% of that of the ordinary sheet glass with the same layers; (6) Sealing material between the frame and the fireproof glass should use flame retardant material which can play the role of fire prevention and smoke control in the case of fire. (7) Hardware fittings should be approved supporting products which is detection qualified.
Q:Does anyone know the characteristics of refractory for glass kiln?
Quartzitic sandstone. Also known as quartzitic sandstone or white gravel. Which is a kind of natural refractory and quartz sandstone bonded by the kaolinite. Who appearance is better to be steel-grey, dense and hard, free of impurities and stripes. Its main crystalline phase is mainly quartz and kaolinite. Which has obvious stratified structure and anisotropism. The refractoriness fluctuation is between 1650~1730 ℃. The expansibility of quartzitic sandstone is different from that of silica brick, who has maximum coefficient of thermal expansion under temperatures of 700 ~ 800 ℃, and it is most likely to burst at this time. The load softening temperature and the compression strength of calcined quartzitic sandstone have been improved significantly, with small residual expansion, stable volume, better thermal shock resistance, so it is generally to use calcinated quartzitic sandstone as refractories. which has been widely used as sidewall blocks on the small and medium sized furnaces.
Q:Does anyone know the refractory temperature of fire-resistant glass?
Ordinary glass will be completely liquefied in the furnace of about 1100 degrees for half an hour and will not deform below 600 degrees. toughened glass fire-resistant glass is the product of ordinary glass after being processed Glass will mainly burst after encountering fire. When unevenly heated or encountering sudden drastic changes in temperature, ordinary glass will burst if the sharp temperature difference is over 70-120 degrees and toughened glass will burst at 200 degrees. It is not yet clear of the bursting temperature for the refractory glass. (I hope this answer can help you!) Hope you adopt !)
Q:what's the fireproof levels of fireproof and thermal inuslation matertial?
1, organic materials: B level material is flammable, B1 level material is flame retardant. 2, inorganic materials: Grade A flame-resistant materials are divided into three classes and two kinds of materials.
Q:What kind of refractory materials should be used for the intermediate frequency furnace to smelt manganese?
You mean furnace lining or ladle lining? Generally magnesia is used as furnace lining, but heat preservation should be practiced when shut down, or brasque would crack. Surly you can employ existing furnace lining which is sold in Tianjin, a little bit expensive, the average lining could be used for 300 furnaces. The furnaces made by magnesia myself break down after 40 furnace were finished. What I referred is a furnace weighing 2 tons, as for a bigger furnace, the existing brasque would be OK. What is the difference between furnace lining and ladle lining? Can you give me more detail about the materials of making a furnace weighing 2 ton? Why others can burn 80-90 furnace with 0.7-ton furnace; over 200 furnaces with 2 ton? What are these ingredients? What I know is just magnesia, magnesium borate, and together with boric acid, they also have many types, which one should I use? Thank you!

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