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Wellman controls atmospheric furnace

Wellman controls atmospheric furnace

  • Wellman controls atmospheric furnace with electric heating and application dimensions of 120 * 60 *  60 and height of 50 cm
  • it’s enough for the heat treatment of different types with Quinch series which is the quality with preheating furnace and washing machine, the second line of heat treatment of Nasim Sobh Farda.

Aichelin

Aichelin

  • The Aichelin heat treatment line is equipped with a preheated and tempered electric furnace, washing, and gas furnace with a capacity of 200 kg charge and it is used for a wide range of parts heat treatment including hardening, annealing, normalizing, soft annealing, carburizing.
  • Both the main and preheated Aichelin furnaces are equipped with a ceiling circulator fan to homogenize temperature and atmosphere, and the uniformity of properties after heat treatment is the result of the same circulator systems.
  • The quenching chamber of the parts is equipped with two powerful stirring motors that prevent steam from forming on the parts when the parts are quenched by stirring the oil.

Supply of specialized steels of copper alloys and The new generation of tool steels

Supply of specialized steels of copper alloys and the new generation of tool steels

  • Nasim Sobh Farda Group of Companies, We supply a new generation of German tool steels and specialized steels for consumption in various industries, including oil and gas and petrochemicals, aviation, steel, and cars.
  • German steelmakers with more than 300 years of experience in making steel and by trusting in up-to-date experience and knowledge, The german considered as a complete reference of tool steel.
  • Nasim Sobh Farda Group of Companies provides a variety of copper superalloys, including bronzes, beryllium copper, Aluminum bronze, and pure copper, and also provide orders with the design and plan desired by the customer.

Air

What is air?

  • Air is the Earth’s natural atmosphere.
  • Air-gas is non-flammable, colorless, odorless, and non-corrosive, and composed.
  • Air is a mixture of gases, such as argon, water vapor, a small amount of CO2, Oxygen, nitrogen, and small amounts of various other gases.
  • In the industry, artificial air is produced by combining oxygen and pure nitrogen in the form of 19.5 to 23.5% auxin with nitrogen balance.
  • The air in the liquid phase, a clear liquid with a blue tint and in the presence of CO2 In it, a little milky color.

Available grades:

  • The amount of humidity in the air varies from one height to another and from region to region.
  • In the zero or synthetic air industry, it is deliberately produced from a combination of pure oxygen and pure nitrogen, so it is expressed by the purity of the components used in production.
  • For example, the 5.0N grade of air, which represents the air produced from a combination of 19.5 to 23.5% of 5.0N grade oxygen with 5.0N nitrogen balance.

storage and transport tanks:

  • Compressed air is stored and transported in pressurized cylinders with different pressures and with different volumes.

Compatible and incompatible materials:

  1. Dry air is non-corrosive.
  2. The equipment in contact with it can be made of any ordinary metal.
  3. Gaseous air is usually carried in pressurized cylinders, tubes, and tube trailers.

 

 

Physical properties

Molecular Weight 28.975
steam pressure 2484 K. Pa @ -150 0C
Gas density 1.2 Kg/m3 @ 21.1 0C and 1 atm
The latent heat of evaporation at the boiling point 205 KJ/Kg
Special heat capacity CP=1.01 KJ/Kg.0C

CV=0.720 KJ/Kg.0C

CP/CV=1.40
Critical temperature -140.60C
Critical pressure 3771 KPa(a)
Solubility in water 0.0292 vol.(gas)/Vol.(Water) at 00C and 1 atm
Explosion / ignition range in air  Non-Flammable Gas

Compatibility with materials

Material Compatibility of Air

 

METALS PLASTICS ELASTOMERS

Brass

CARBON STEEL

StainLess Steel

Alumium

Zinc

CoPPER

Monel

Kel-F

Teflon

Tefzel

Kynar

PVC

Polycarbonate

 Viton® Buna-N Neoprene Polyurethane

O

Kalrez
GAS

 

S – Satisfactory for use with the intended gas
C – Conditional. May be incompatible under some circumstances or conditions Contact your Praxair representative for additional information
U – Unsatisfactory for use with the intended gas
I – Insufficient data available to determine compatibility with the intended gas
O – All nonmetalic, even those considered compatible, may be ignitable in oxygen enriched environments or in other oxidizing gases. Successful
use depends upon oxygen purity, pressure, temperature, cleanliness and elimination of ignition mechanisms. Please contact your Praxair
Representative for additional information

Safty

Classification of dangerous Products:

Dangerous Products Transport Information:

 

IATA IMDG DOT
UN 1002 UN 1002 UN 1002 UN NUMBER
Air, compressed Air, compressed Air, compressed UN SHIPPING NAME
2.2 2.2 2.2 TRANSPORT HAZARD CLASS
NO NO NO ENVIRONMENTAL HAZARD

Carbon monoxide

What is Carbon Monoxide (CO)?

  • Carbon monoxide is a colorless, odorless, toxic, and flammable gas.
  • Liquid carbon monoxide is a cryogenic fluid.
  • Carbon monoxide can be found at -192 0C and atmospheric pressure.
  • Carbon monoxide is lethal in less than an hour if it has a concentration of more than 4% in the air.
  • Inhalation of high concentrations of this gas causes sudden and asymptomatic fainting.

Available grades:

  • Carbon monoxide is available in various grades from %98 to %99.99.
  • Existing grades of carbon monoxide are:

% 98.5,% 99,% 99.5,% 99.99

Tanks and maintenance:

  • Carbon monoxide is transported in cylinders, trailer tubes, and cryogenic bulk tanks.

Compatible and incompatible materials:

  1. Ordinary steels and metals are compatible with dry, sulfur-free carbon monoxide.
  2. The presence of carbon dioxide impurities and moisture in carbon monoxide increases the corrosive properties of these gases.
  3. High-pressure plant equipment is usually made of copper.
  4. Copper is resistant to carbon monoxide.
  5. High-grade chromium steels are highly resistant to corrosion of carbon monoxide with sulfur impurities.
  6. Butyl rubber and chloro-fluoro-carbon polymers such as VITON should not be used due to swelling in carbon monoxide.

Physical properties

Molecular Weight 28.01
steam pressure  760mmHg@ -191 0C
Gas density  1.161Kg/m3 @ 21.1 0C and 1 atm
Latent heat of vaporization at temperatures of -19100C and 1atm 215.8 KJ/Kg
Specific heat capacity at temperature

15.6 0C

At 1atm

 CP=1.037 KJ/Kg.0C

CV=0.7394 KJ/Kg.0C

CP/CV=1.40
Critical temperature -140.2 0C
Critical pressure 4399 K.Pa
Solubility in water  0.035vol.(gas)/Vol.(Water) at 0 0C and 1 atm
Explosion / ignition range in air  Flammable Gas

Compatibility with materials

Material Compatibility of Carbon monoxide

METALS PLASTICS ELASTOMERS

Brass

CARBON STEEL

StainLess Steel

Alumium

Zinc

CoPPER

Monel

Kel-F

Teflon

Tefzel

Kynar

PVC

Polycarbonate

 Viton® Buna-N Neoprene Polyurethane

O

Kalrez
GAS

S – Satisfactory for use with the intended gas
C – Conditional. May be incompatible under some circumstances or conditions Contact your Praxair representative for additional information
U – Unsatisfactory for use with the intended gas
I – Insufficient data available to determine compatibility with the intended gas
O – All nonmetalic, even those considered compatible, may be ignitable in oxygen enriched environments or in other oxidizing gases. Successful
use depends upon oxygen purity, pressure, temperature, cleanliness and elimination of ignition mechanisms. Please contact your Praxair
Representative for additional information

ُSafty

Classification of dangerous Products:

Dangerous Products Transport Information:

(For refrigerated liquid)   :UN 2201

IATA IMDG DOT
UN 1016 UN 1016 UN 1016 UN NUMBER
Carbon monoxide, compressed Carbon monoxide, compressed Carbon monoxide, compressed UN SHIPPING NAME
2.3 2.3 2.3 TRANSPORT HAZARD CLASS
NO NO NO ENVIRONMENTAL HAZARD

Ammonia

What is Ammonia?

  • Ammonia is a combination of the two gaseous elements hydrogen and nitrogen.
  • The bond ratio of three hydrogen molecules to one nitrogen molecule is formed.
  • The chemical formula of ammonia Is NH3.

Ammonia storage and transport tanks:

  • Moisture-free (dry) ammonia is available in the form of pressurized gas in cylinders, cryogenic tanks, and non -cryogenic tanks.
  • Also, dry ammonia is stored in bulk tanks with a large volume and installed on the ground.
  • The large storage tanks, which are not usually installed on the ground, have very low pressure and have a cooling cycle as well as thermal insulation.

Ammonia grades:

Acceptable grades used in various industries are:

%99.98

Technical grade

 %99.5

Commercial grade
%99.995

Metallurgical grade

 %99.7

Agricultural grade
%99.999

Semiconductor Industry Grade

 %99.95

Refrigeration grade

Almost %80 of the total ammonia produced is used in the fertilizer industry.

Safety precautions

  1. People with chronic illnesses or long-term allergies should not be hired where there is ammonia.
  2. Ammonia ions are in fact a phenomenon of the biological system, yet ammonia in the atmosphere has a very stimulating effect on the mucous membranes of the eyes, nose, throat, and lungs.
  3. Too much ammonia can have destructive effects on tissues.
  4. Too much ammonia can lead to laryngeal and bronchial problems.
  5. Too much ammonia can cause edema and Obstruction of breathing.

Compatible and incompatible materials:

  • Ammonia doesn’t affect most metals without moisture.
  • When ammonia combines with water vapor; Affects copper, zinc, and their alloys.
  • The use of copper, zinc, silver, and their alloys in the manufacture of ammonia tanks is prohibited.

Physical properties

Molecular Weight 17.031
steam pressure 786.7 K. Pa @ 21.1 0C
Gas density 0.771 Kg/m3 @ 0 0C and 1 atm
Latent heat evaporates at boiling point and 1atm 1370 KJ/Kg
Specific heat capacity at temperature

15 0C

at 1atm

 CP=2.19 KJ/Kg.0C

CV=1.673 KJ/Kg.0C

CP/CV=1.3096
Critical temperature 133.00C
Critical pressure 11425 K.Pa(a)
Solubility in water %47 vol.(gas)/Vol.(Water) at 0 0C and 1 atm
Explosion / ignition range in air corrosive gas

Compatibility with materials

Material Compatibility of Ammonia

 

METALS PLASTICS ELASTOMERS

Brass

CARBON STEEL

StainLess Steel

Alumium

Zinc

CoPPER

Monel

Kel-F

Teflon

Tefzel

Kynar

PVC

Polycarbonate

 Viton® Buna-N Neoprene Polyurethane

O

Kalrez
GAS

 

S – Satisfactory for use with the intended gas
C – Conditional. May be incompatible under some circumstances or conditions Contact your Praxair representative for additional information
U – Unsatisfactory for use with the intended gas
I – Insufficient data available to determine compatibility with the intended gas
O – All nonmetalic, even those considered compatible, may be ignitable in oxygen enriched environments or in other oxidizing gases. Successful
use depends upon oxygen purity, pressure, temperature, cleanliness and elimination of ignition mechanisms. Please contact your Praxair
Representative for additional information

Safty

Dangerous products classification:

Dangerous Products Transport Information:

 

IATA IMDG DOT
UN 1005 UN 1005 UN 1005 UN NUMBER
Ammonia, anhydrous Ammonia, anhydrous Ammonia, anhydrous UN SHIPPING NAME
2.4 , 9.2 2.4 , 9.2 2.4 , 9.2 TRANSPORT HAZARD CLASS
NO NO NO ENVIRONMENTAL HAZARD

Neon

What is Neon?

  • Neon is a chemical element with the symbol Ne and the atomic number 10.
  • This element Can be found in nature as a colorless gas.
  • Electric discharge emits a reddish-neon color, which shows that why neon lamps have a wide range of advertising uses.
  • Neon has 40 times the cooling properties of liquid helium and 3 times the liquid hydrogen, and it’s also used in the refrigeration industry.
  • Although neon is an inert gas in many practical cases, in combination with fluorine in the laboratory, it produces interesting colored compounds.
  • The above action suggests that the neon compound exists naturally; However, the evidence says that this hypothesis may be true or may not be true.
  • Neon is a very dangerous and deadly gas.
  • This gas can cause severe suffocation.

Physical properties

Molecular Weight 20.183
steam pressure 100 K. Pa @ -246.15 0C
Gas density 0.83536 Kg/m3 @ 21.1 0C and 1 atm
Latent heat of vaporization at boiling point (triple point) 16.6 KJ/Kg
Special heat capacity CP=1.05 KJ/Kg.0C

CV=0.636 KJ/Kg.0C

CP/CV=1.64
Critical temperature -228.8 0C
Critical pressure 2654 KPa(a)
Solubility in water 0.0105 vol.(gas)/Vol.(Water) at 200C and 1 atm
Explosion / ignition range in air  Non-Flammable Gas

Compatibility with materials

Material Compatibility of Neon

METALS PLASTICS ELASTOMERS

Brass

CARBON STEEL

StainLess Steel

Alumium

Zinc

CoPPER

Monel

Kel-F

Teflon

Tefzel

Kynar

PVC

Polycarbonate

 Viton® Buna-N Neoprene Polyurethane

O

Kalrez
GAS Updating Updating Updating Updating Updating Updating Updating Updating Updating Updating Updating Updating Updating Updating Updating Updating Updating

S – Satisfactory for use with the intended gas
C – Conditional. May be incompatible under some circumstances or conditions Contact your Praxair representative for additional information
U – Unsatisfactory for use with the intended gas
I – Insufficient data available to determine compatibility with the intended gas
O – All nonmetalic, even those considered compatible, may be ignitable in oxygen enriched environments or in other oxidizing gases. Successful
use depends upon oxygen purity, pressure, temperature, cleanliness and elimination of ignition mechanisms. Please contact your Praxair
Representative for additional information

Safty

Dangerous Products classification:

Dangerous Products Transport Information:

(For refrigerated liquid)   :UN 1913

IATA IMDG DOT
UN 1065 UN 1065 UN 1065 UN NUMBER
Neon, compressed Neon, compressed Neon, compressed UN SHIPPING NAME
2.2 2.2 2.2 TRANSPORT HAZARD CLASS
NO NO NO ENVIRONMENTAL HAZARD

Sulfur hexafluoride

What is sulfur hexafluoride?

  • Sulfur hexafluoride is a colorless, odorless, non-toxic, non-flammable gas that has electrical insulation properties and acts as an insulator in electrical equipment.
  • SF6(Sulfur hexafluoride) At atmospheric pressure 1, can deform directly from the solid phase to the gaseous phase.
  • SF6 One of the most stable chemical compounds in the presence of many substances، It dissolves very little in water and oil and does not change pH.

Available grades:

%99.999-% 99.99 – %99.9

Tanks and maintenance:

  • SF6 can be charged and carried in cylinders and pressure vessels with working pressure more than 68 times.
  • The maximum charge weight of the cylinder is %120 of the weight of the cylinder water intake.

Compatible and incompatible materials:

  • SF6 In contrast with all metals is non-corrosive.
  • In the vicinity of the electrical discharge may decompose somewhat.
  • Some compounds resulting from the breakdown of SF6 molecules? , They Might be corrosive.
  • Corrosion caused by the breakdown of SF6 molecules may be due to the presence of moisture or high temperatures.
  • SF6 Decomposes very little in the presence of some special metals, This effect occurs in the presence of silicon and carbon steels.
  • Decomposition at high temperatures does not occur in the presence of aluminum, copper, brass, and silver.
  • Most washers used in SF6 systems Made of Teflon, neoprene, and natural latex

Physical properties

Molecular Weight 146.05
steam pressure 2156 K. Pa @ 21.1 0C
Gas density 6.17 Kg/m3 @ 20 0C and 1 atm
Latent heat of vaporization at temperature 200C  63.1 KJ/Kg
Special heat capacity CP=0.6790 KJ/Kg.0C

CV=0.6190 KJ/Kg.0C

CP/CV=1.097
Critical temperature 45.560C
Critical pressure 3753 KPa(a)
Solubility in water 0.001 vol.(gas)/Vol.(Water) at 25.0 0C and 1 atm
Explosion / ignition range in air  Non-Flammable Gas

Compatibility with materials

Material Compatibility of SULPHUR HEXAFLUORIDE

 

METALS PLASTICS ELASTOMERS

Brass

CARBON STEEL

StainLess Steel

Alumium

Zinc

CoPPER

Monel

Kel-F

Teflon

Tefzel

Kynar

PVC

Polycarbonate

 Viton® Buna-N Neoprene Polyurethane

Updating

Kalrez
GAS Updating Updating Updating Updating Updating Updating Updating Updating Updating Updating Updating Updating Updating Updating Updating Updating Updating

 

S – Satisfactory for use with the intended gas
C – Conditional. May be incompatible under some circumstances or conditions Contact your Praxair representative for additional information
U – Unsatisfactory for use with the intended gas
I – Insufficient data available to determine compatibility with the intended gas
O – All nonmetalic, even those considered compatible, may be ignitable in oxygen enriched environments or in other oxidizing gases. Successful
use depends upon oxygen purity, pressure, temperature, cleanliness and elimination of ignition mechanisms. Please contact your Praxair
Representative for additional information

Safty

Dangerous Products classification:

Dangerous Products Transport Information:

 

IATA IMDG DOT
UN 1080
 UN 1080 UN 1080 UN NUMBER
SULPHUR HEXAFLUORIDE SULPHUR HEXAFLUORIDE SULPHUR HEXAFLUORIDE UN SHIPPING NAME
2.2 2.2 2.2 TRANSPORT HAZARD CLASS
NO NO NO ENVIRONMENTAL HAZARD

Hydrogen sulfide

What is hydrogen sulfide?

  • Hydrogen sulfide gas has a very strong odor similar to rotten eggs.
  • Hydrogen sulfide, or sulfide ion, acts as a catalyst in the absorption of hydrogen on the surface of metals, leading to the rapid brittleness of metals.
  • In areas where the air is not flowing, leaking very small amounts of hydrogen sulfide can be very dangerous.
  • If hydrogen sulfide comes in contact with any part of the body or eyes, be sure to rinse the area with plenty of clean water for 15 minutes.

Available grades:

  • Hydrogen sulfide is present only in the liquid phase with a purity of %99.5 and %99.99.

Tanks and maintenance:

  • A group of cylinders is suitable for charging hydrogen sulfide.
  • The maximum weight of the cylinder charge is %62.5 of the weight of the cylinder intake.
  • Hydrogen sulfide is also transported and stored in special tanks in bulk.

Compatible and incompatible materials:

  1. Anhydrous hydrogen sulfide under pressure and ambient temperature are compatible with carbon steel and ferrous iron.
  2. Hydrogen sulfide itself isn’t corrosive to Steel.
  3. Substances such as impurities, pH, specific abrasion conditions, or mechanical and thermal stresses on metals can cause severe corrosion.
  4. Teflon, VITON, and KEL-F are polymers compatible with hydrogen sulfide.

Physical properties

Molecular Weight 34.08
steam pressure 1579 K. Pa @ 15.6 0C
Gas density 26.55 Kg/m3 @ 15.6 0C and 1 atm
Latent heat of vaporization at 15.6 C 444.5 KJ/Kg
Specific heat capacity at the temperature of

15.00C  and 1 atm

 CP=1.014 KJ/Kg.0C

CV=0.7643 KJ/Kg.0C

CP/CV=1.327
Critical temperature  100.5 0C
Critical pressure 9008 KPa(a)
Solubility in water 0.0292 vol.(gas)/Vol.(Water) at 200C and 1 atm
Boiling point -103.8  0C
Explosion / ignition range in air  Flammable Gas/Poison Gas

Compatibility with materials

Material Compatibility of Hydrogen sulfide

METALS PLASTICS ELASTOMERS

Brass

CARBON STEEL

StainLess Steel

Alumium

Zinc

CoPPER

Monel

Kel-F

Teflon

Tefzel

Kynar

PVC

Polycarbonate

 Viton® Buna-N Neoprene Polyurethane

O

Kalrez
GAS

S – Satisfactory for use with the intended gas
C – Conditional. May be incompatible under some circumstances or conditions Contact your Praxair representative for additional information
U – Unsatisfactory for use with the intended gas
I – Insufficient data available to determine compatibility with the intended gas
O – All nonmetalic, even those considered compatible, may be ignitable in oxygen enriched environments or in other oxidizing gases. Successful
use depends upon oxygen purity, pressure, temperature, cleanliness and elimination of ignition mechanisms. Please contact your Praxair
Representative for additional information

Safty

Dangerous Products classification:

Dangerous Products Transport Information:

IATA IMDG DOT
UN 1053 UN 1053 UN 1053 UN NUMBER
Hydrogen sulfide Hydrogen sulfide Hydrogen sulfide UN SHIPPING NAME
2.1/2.3 2.1/2.3 2.1/2.3 TRANSPORT HAZARD CLASS
NO NO NO ENVIRONMENTAL HAZARD

Sulfur Dioxid

What is Sulfur Dioxide?

  • Sulfur dioxide is a combination of oxygen and sulfur.
  • In normal conditions, at normal temperatures and pressures, sulfur dioxide is a colorless gas with a very nasty odor that can cool and compress and turn into a colorless liquid.
  • This gas at a pressure of 1 atmosphere and Its boils at the temperature of  10 C
  • This gas at temperature  -9.75 C Freezes.
  • Liquid sulfur dioxide is heavier than water and in the gas phase, it weighs twice as much as air.
  • It is also non-flammable in any of the liquid and gaseous phases and is stable in a chemical bond.
  • This gas becomes very corrosive to metals in the presence of a very small amount of water, sulfur dioxide, except in the presence of lead, stainless steel 316, and special alloys.
  • The Special glass and plastics are resistant to impure (hydrated) sulfur dioxide.

Available grades:

% 9.99 in the liquid phase

Tanks and maintenance:

  • Sulfur dioxide can be charged in pressurized cylinders.
  • This gas can also be charged and transported in tons of tanks, portable flasks, and cargo tanks.

Compatible and incompatible materials:

  1. In a Short temperature range, carbon steels can be exposed to sulfur dioxide without water.
  2. Sulfur dioxide has moisture, in the presence of corrosive carbon steel.

Physical properties

 

Molecular Weight 64.06
steam pressure 49.1 K. Pa @ 21.1 0C
Gas density 1.261 Kg/m3 @ 0 0C and 1 atm
The latent heat of evaporation at the boiling point  361.5 KJ/Kg
Specific heat capacity at a temperature of 25.0  and 1 atm

CP=0.622 KJ/Kg.0C

CV=0.485 KJ/Kg.0C

CP/CV=1.28
Critical temperature 157.4 0C
Critical pressure 7880 KPa(a)
Solubility in water 22.97 vol.(gas)/Vol.(Water) at 00C and 1 atm
Boiling point -10.0  0C
Explosion / ignition range in air Poison Gas

 

 

Compatibility with materials

Material Compatibility of Sulfur dioxide

 

METALS PLASTICS ELASTOMERS

Brass

CARBON STEEL

StainLess Steel

Alumium

Zinc

CoPPER

Monel

Kel-F

Teflon

Tefzel

Kynar

PVC

Polycarbonate

 Viton® Buna-N Neoprene Polyurethane

Updating

Kalrez
GAS Updating Updating Updating Updating Updating Updating Updating Updating Updating Updating Updating Updating Updating Updating Updating Updating Updating

 

S – Satisfactory for use with the intended gas
C – Conditional. May be incompatible under some circumstances or conditions Contact your Praxair representative for additional information
U – Unsatisfactory for use with the intended gas
I – Insufficient data available to determine compatibility with the intended gas
O – All nonmetalic, even those considered compatible, may be ignitable in oxygen enriched environments or in other oxidizing gases. Successful
use depends upon oxygen purity, pressure, temperature, cleanliness and elimination of ignition mechanisms. Please contact your Praxair
Representative for additional information

Safty

Classification of dangerous Products:

Dangerous Products Transport Information:

 

IATA IMDG DOT
UN 1079 UN 1079 UN 1079 UN NUMBER
Sulfur dioxide Sulfur dioxide Sulfur dioxide UN SHIPPING NAME
2.3 2.3 2.3 TRANSPORT HAZARD CLASS
NO NO NO ENVIRONMENTAL HAZARD

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