Product Item: Carbon Sulfur Crucibles 528-018 Eltra 90150 Alpha AR3818 Ceramic Crucible  for Carbon / Sulfur Analyzer

Production Execution Standard :YB/T 4145-2006 Metallurgical Industry Standard of The People's Republic of China-Carbon and Sulfur Analysis Crucible 

CS Ceramic Professional supplier of Bruker/Elementar/Baosteel/CKIC/SGS/NCS and is the only industry standard maker of carbon sulfur crucible in China.(See standard details)

TOP 1 manufacturer researches C/S Analyzer Consumables for Carbon sulfur Elemental Analysis .Keep many patent of ceramic crucible (see patent details )

Why choose us:

• 40+Years focus on the production of carbon sulfur crucible
• 15+ Years oversea market experience
• 6 Steps inspection processes ,consistent quality
• OEM is acceptable

Item info :

Usage:

As ceramic consumables of Carbon / Sulfur Analyzer for Carbon sulfur Elemental Analysis.Cs crucible test carbon and sulfur elements of iron and steel material,The ceramic crucible with low blank of Carbon / Sulfur can get low and stable baseline value and super stability is especially critical for analysis .

Aplication：

Carbon and sulfur crucible which is special used at infrared Carbon Sulfur Analyzer free Carbon analyzer ,Steel and Iron company,Powder metallurgy,Petroleum ,Research department,Concrete company,Minning lab,the third party inspection lab/company,welding company,grinding company,crushing company,laboratory

Recommendation of Pretreatment:

Besides raw material and fabrication process, crucible baseline may also from absorption. Before using, influence of water, SO2 and CO2 to analyzing result should be avoided. For this purpose, two methods below are recommended.

Method 1, put carbon sulfur ceramic crucible in high temperature furnace, raise the temperature to 1200℃ and burn it for 2 hours, then take it out and get cooled, put into desiccator for demand (preservation time no longer than 4 hours)

Method 2, put carbon-sulfuric analysis crucible in tube-type crucible furnace, induce pure oxygen (purity 99.% or higher), and burn it no less than 1 hour at 1200℃.

Note: Products without pretreatment can be used directly for occasion that normal carbon sulfur blank value (10ppm) is acceptable. 

Professional Q&A of Carbon sulfur Analysis crucible :

Blog:Acceptance Process of Dedicated Carbon Sulfur Analyzing Crucible.

Blog:Effect of Pretreatment Method of Carbon Sulfur Crucible to Carbon/Sulfur Content Test in Steel Sample.

Blog:Key points of Super Low Carbon Content Analyzing by High Frequency Infrared Carbon Sulfur Analyzer.

Packing

1 Crucible shall be packed with tin foil or pure aluminum white paper, and the minimum packing unit shall be 10 pieces for each roll. Rolls should be put into paper packing cases with plastic film as inner liner, and should be arranged in sequence with corrugated paper as the interval between layers, for each case, total quantity should be 1000 pieces.

2 If the buyer has special requirements for packaging, then buyer and seller can have a further discussion.

Storage and transportation:

The crucible shall be stored in a well-ventilated warehouse, and the air shall not contain any corrosive gas. Moisture should be kept away. Packed crucibles shall be suitable for any means of transportation, collision rain hit should be avoided during transportation.

Marking: 

Surface of the packing box shall be marked with non-fading marking, including product name, quantity, specification, crucible carbon and sulfur baseline value, production date and manufacturer name, etc.

Quality Certificate:

Quality certificate that verify products comfort to requirements of the contract or relative standard should be enclosed in the packing box. Quality certificate should indicate the items below:

A) Name of manufacturer; B) Product name, specification, model, carbon and sulfur baseline value of crucible; C) Production date; D) Code number of inspector; E) Standard number or contract number

Baseline Determination of Carbon sulfur Crucible (Material)

A.1 reagents

A.1.1 pure iron flux: the particle size is less than 1.25mm, and mass fraction of both carbon and broken iron are less than 0.0005%.

A.1.2 vanadium pentoxide: purely analyzed, put it into a muffle furnace at 600℃ for 2 hours before using, and cool it in a dryer for reserve.

A.1.3 tungsten flux: the particle size is 0.4~0.8mm, and mass fraction of sulfur and sulfur are less than 0.001% and 0.0005% respectively.

A.1.4 ceramic crucible: use a ceramic crucible of good quality, burn it 4 hours at 1200℃ in a muffle furnace before using, then cool it overnight in the furnace and take it out after cooling down to room temperature in the dryer for reserve.

A.1.5 oxygen: high purity (higher than 99.5%)

A.2 instruments

A2.1 high frequency infrared sulfur analyzer: sensitivity 0.00001%

A.3 steps of analysis

A.3.1 Sample: Grind the "dedicated crucible for sulfur analysis" to less than 0.15mm with an agate mortar and roast it at 105-110℃ for 2h, then take it out and cool down to room temperature in a dryer for reserve.

A.3.2 render crucible (secondary crucible): Add 1 gram pure iron flux (A.1.1) and 1 gram tungsten flux (A.1.3) to a ceramic crucible treated as step A.1.4. Put the crucible in high-frequency induction furnace of infrared carbon crucible analyzer, aerate oxygen and heat it with analysis program. Take it down after the analysis is completed, after slightly cooled, then put it in a dryer (check and confirm no cracks) to cool it down to room temperature for reserve.

A.3.3 instrument calibration

Weigh standard sample 1.000 gram (C:0.00xx%, S:0.000xx% or C:0.000xx%, S: 0.0000xx%) and put it in render crucible. Add 1 gram pure iron flux (A.1.1) and 0.6 gram vanadium pentoxide (A.1.2) and input the mass value of weighed standard sample into the instrument mass compensator. Start analysis, repeat measurement for three times, and take the average value for instrument calibration.

A.3.4 measurement (baseline value of crucible material)

Accurately weigh 1.000 gram standard sample and put it in the bottom of render crucible and add 1 gram pure iron flux (A.1.1) and 0.6 gram vanadium pentoxide (A.1.2), and input the mass value of weighed standard sample into the instrument mass compensator. Complete the analysis, carbon and sulfur value given by the instrument is baseline value of the crucible material.

A.3.5 measurement (baseline value of crucible)

Take a pretreated ceramic crucible (or ceramic crucible without any pretreatment) and place it on an electronic balance. After getting the net weight, add 1 gram pure iron flux (A.1.1) and 0.6 gram vanadium pentoxide (A.1.2), and input mass value of 1.000 gram into the instrument mass compensator. Complete the analysis, carbon and sulfur value given by the instrument is baseline value of the crucible.

Vedio of CS CERAMIC'S manufacturing shop-carbon and sulfur analyzer crucible

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Shipping:    We do international shipping for clients.       

 
Special offer:  Most of our crucibles are produced to order, please mark clearly height, bottom diameter, top diameter, wall thickness and any special requirements i.e. lips etc. To speed up quotations please supply a drawing and if appropriate, the name of the system in which they are to be used.