delivery 24h The table of chemical resistance is a guide to the initial selection of fitting and coupling material suitable for given operating conditions. Please contact Sales or Technical Department of TUBES INTERNATIONAL® to match the fitting material correctly with the application.
TABLE OF FITTING MATERIAL CHEMICAL RESISTANCE
A B C X –
excellent resistance, suitable for continuous operation good resistance, intermittent operation limited resistance, limited use no resistance no data

 

The characteristics given in the table apply to the resistance at +20°C.

 
Substance AL MS BR ST MON 304 316L PP
Acetic acid 10 ÷ 50% B X X X B A A A
Acetic acid 80% B X X X A A A A
Acetic anhydride A X B B B A A A
Acetone A B B B A A A A
Acetylene A X X B B A A X
Aluminium chloride (solution) X X X X X X X A
Aluminium fluoride C X X X A X C X
Aluminium nitrate (saturated) C X A X A B B A
Aluminium sulphate X X C X B A A A
Ammonium bifluoride X X X X B X X –
Ammonium carbonate X B – C A A A –
Ammonium caseinate A A A A A A A –
Ammonium nitrate B X X X X A A A
Ammonium perchlorate X – – X A A A X
Ammonium phosphate 10 ÷ 40% X X X X B A A A
Ammonium sulphate X X C X A X A A
Amonium chloride (dry) X X B X B B B A
Amonium hydroxide A X X A A A A A
Anhydrous ammonia – X X A X A A A
Aniline (aminobenzene) A X B X B A A A
Aqua ammonia – ammonia water A X X A X A A A
Arsenic acid X X X X A A A A
Asphalt A A A B A A A X
Barium carbonate X A B B A B B A
Barium chloride (saturated) X B B A B B A A
Barium hydroxide X C C X A A A A
Barium sulphate B B B C B A A –
Barium sulphide X X A X A A A –
Benzaldehyde B B B X B B A –
Benzene A A A A A A A X
Benzoic acid B X X X A A A –
Benzol A B B B B A A X
Benzyl alcohol B B B B A A A –
Bleach (12,5% active chlorine) X X X X X X X A
Borax X B B B A A A A
Boric acid B X B X B A A A
Brine X X B X A B A A
Bromic acid X X X X X X X –
Bromine liquid X X X X X X X X
Butadiene, butylene A A B B A A A X
Butane A A A A A A A X
Butanoic acid (butyric acid) X A A X A B A A
Butene A A A A A A A X
Buthyl acetate (dry) A B A A A A A X
Butyl alcohol (butanol) A B A B A A A A
Calcium acetate B – B B A A A A
Calcium carbonate A A A A A A A –
Calcium chloride (saturated) X B A B X B A A
Calcium disulphide X X B X X A B A
Calcium hydroxide C X X B A A A A
Calcium hypochlorite X X X X X X X A
Calcium sulphate X A X X A A A –
Calcium sulphide X X C C B A A –
Carbon dioxide (dry) A A A A A A A A
Carbon dioxide (wet) B C C C A A A A
Carbon disulphide A X X B B A A X
Carbon II oxide (carbon monoxide) A A A A A A A –
Carbon tetrachloride X A A A A A A X
Carbonic acid A B B B A A A A
Castor oil A A A A A A A A
Caustic potash, KOH X X X X A A A A
Caustic soda, NaOH X X X X A A A A
Chlorine contact Sales or Technical Department for proper fitting selection
Chloroform (dry) X A A X A A A X
Chlorosulfonic acid X X X X B B B –
Chromic acid 50% X X X X X X X B
Citric acid C X X X B A A A
Clorox (sodium hypochlorite 15%) X X X X X X X A
Coolant (glycol based) A A A A A A A A
Copper cyanide X X X A X B B –
Copper II chloride (dry) X X X X X X X A
Copper sulphate X X X X X A A A
Crude oil A A A A A A A X
Cyclohexane A A A A A A A X
Detergents B B B B A A A A
Dextrose A A A A A A A A
Diacetone alcohol A A B B A B B –
Diesel fuel A A A A A A A B
Diethyl sebacate – – – – – – – X
Diethylamine B X X X A A A A
Disodium phosphate X C A B A A A A
Distilled water X B B X A A A A
Ethanolamine A – – A A A A A
Ethers B B B B B B B X
Ethyl acetate A A A A A A A X
Ethyl alcohol (ethanol) A B B B B A A A
Ethyl chloride (dry) B B B B B A A X
Ethylene chloride B B B B B A A X
Ethylene dichloride (dry) X X X X A X X X
Ethylene glycol A A A A A A A A
Ethylene oxide A X X B A A A –
Extraction naphtha A A B B B A A –
Fluoroboric acid X X X X B X X A
Fluorosilic acid ≤ 30% X X B X A X X –
Formaldehyde 100% A B B X B A A A
Formalin (formaldehyde 40%) A C B X A A A A
Formic acid ≤ 85% A C C X B A A A
Gear oil A A A A A A A A
Gelatin A X X X A A A A
Glucose B A B B B A A A
Glycerine A A A A A A A A
Glycol ethers (polyols) – – – A – A A A
Heating oil A A A A A A A B
Heptane A A A A A A A –
Hexane A A A A A A A –
Hexyl alcohol (hexanol) A A A A A A A –
Hydraulic oil A A A A A A A A
Hydrobromic acid ≤ 50% X X X X X X X A
Hydrochloric acid (muriatic) ≤ 37% X X X X X X X A
Hydrocyanic acid A X X X A A A A
Hydrogen (gaseous) A A A A A A A A
Hydrogen chloride gas (dry) X B A A A A A A
Hydrogen peroxide 30% A X X X B A A A
Hydrogen sulphide (moist) A X C X C B A A
Hypochlorous acid 20% X X X X X X X A
Iodine (dry) 100% X X X X A B B X
Iron hydroxide A A A A A A A A
Iron II chloride X X X X X X X A
Iron II sulphate X X X X X A A –
Iron III chloride X X X X X X X A
Iron III sulphate X X X X B A A A
Iron nitrate 10 ÷ 50% X X X X X B B A
Isobuthyl acetate A B A A A A A X
Isobutyl alcohol (isobutanol) A A A A A A A –
Isopropyl acetate A A A A A A A X
Isopropyl alcohol (isopropanol) B B B B B A A A
Isopropyl ether A B B A A A A –
Jet fuel Jet A1 A A A A A A A X
Kerosene A A A A A A A X
Ketones B B B B B B B –
Lactic acid 25% X B B X A A A A
Lactic acid 80% X B X X A A A A
Lead II acetate X X X X B A A A
Lead II chloride X X X X X X X B
Lead sulphate X B B X B B A –
Lime sulphur X X X X B B B A
Linoleic acid B X C X A A A A
Magensium hydroxide X B A A A A A A
Magnesium carbonate B – – C A A A A
Magnesium chloride X X B X A B A A
Magnesium nitrate B B B B B B B A
Magnesium oxide A A A A A A A –
Magnesium sulphate B A B C A A A A
Maleic acid A X C X A A A –
Mercury X X X B A A A A
Mercury II chloride X X X X X X X A
Mercury II cyanide X X X X B B B –
Methane A A A A A A A B
Methyl alcohol (methanol) B B B B B A A A
Methyl bromide X A A B A B A –
Methyl methacrylate A – B A A A A –
Methylene chloride A B B B A A A X
Methyl-ethyl ketone A A A B A A A A
Methyl-isobutyl ketone A A A B A A A –
Milk A X X X X A A A
Mine water X X X X B A A A
Mineral grease A A A A A A A –
Mineral oil A A A A A A A A
Monosodium phosphate X C – B A A A A
Naphtalene A A A A A A A X
Naphtha A A B B B A A –
Nickel sulphate X C C X A A A A
Nitric acid 30% X X X X X A A A
Nitric acid 65% X X X X X A A X
Nitric acid 99% A X X X X B B X
Nitrobenzene A X X A A A A X
Nitrogen A A A A A A A A
Octyl alcohol (octanol) A A A A A A A –
Oleic acid B C B B A A A A
Oxalic acid ≤ 10% B C B X A A A A
Oxygen X A A X A A A A
Palmitic acid (saturated) B C B C A A A A
Paraffin A A A A A A A A
Pentanol (amyl alcohol) B A A B A A A A
Phenol A C X B A A A X
Phosphoric acid ≤ 50% X X X X A A A A
Phosphoric acid ≤ 85% X X X X C A A A
Photographic solutions A A A X A A A A
Picric acid X X X X X B B X
Potasium dichromate 30% A B B B B A A A
Potassium acetate X – – B A A A A
Potassium aluminium-sulphate (alum) X X X X A X A A
Potassium bicarbonate X B B B A A A A
Potassium carbonate X C C B A A A A
Potassium chlorate 8% B X X B A A A –
Potassium chloride 30% X X B X A A A A
Potassium chromate 30% B A A B A B B –
Potassium cyanide 30% X X X B B B A A
Potassium hydroxide ≤ 50% X X X X A A A A
Potassium nitrate 80% A B B B B B B A
Potassium permanganate B B B X B A A –
Potassium sulphate B B B B A A A A
Propane A A A A A A A X
Propyl alcohol (propanol) B B B B B A A –
Propylene glycol A A A A A A A A
Propylene oxide C X X B X A A –
Pyridine A A A A A A A –
Pyrogallol C6H3(OH)3 B B B B B B A –
Refined oil A A A A A A A X
Sea water X X B X B B B A
Silicone oil A A A A A A A A
Silver nitrate X X X X X B A A
Soap solutions B B B B B A A A
Sodium acetate X – – B A A A A
Sodium bicarbonate X B B B A A A A
Sodium borate B B B C B B B A
Sodium carbonate X C C B A A A A
Sodium chlorate 50% X B B X A A A –
Sodium chloride 30% X B B X A B A A
Sodium cyanide X X X B X A A A
Sodium dichromate 10% B X X B A B B A
Sodium hydroxide ≤ 50% X X X X A A A A
Sodium hydroxide (dry) 100% X X X X A A A A
Sodium hypochlorite ≤ 20% X X X X X X X A
Sodium IV bisulphate X X C X B B A A
Sodium metaphosphate X X B X A A A A
Sodium nitrate 40% A B A B B A A A
Sodium perborate 10% X X X X A A A –
Sodium peroxide X X X X B A A A
Sodium silicate (water glass) X C C B A A A –
Sodium sulphate B B B B A A A A
Sodium sulphide X X X X A B A A
Sodium thiosulphate A X X X B A A A
Sodium VI bisulphate X X C X B X B A
Steam A A A A A A A X
Stearic acid B C B C C A A A
Styrene A A A A A A A X
Sulfur trioxide B X X B B A A A
Sulphur chloride (monochloride) X X X X X X X –
Sulphur dioxide (dry) B C C B X A A –
Sulphuric acid ≤ 20% X X X X X X A A
Sulphuric acid ≥ 96% X X X B X A A C
Sulphuric acid 21 ÷ 95% X X X X X X X B
Sulphurous acid 20% X X X X X X B A
Tannic acid – tannin X A X X B B B A
Tartaric acid A A B B A A A A
Tetrachloroethylene A B C C A A A X
Tetrahydrofuran X – – A B A A –
Tin chloride II 15% X X X X – X X A
Tin chloride IV X X X X X X X A
Titanium tetrachloride (dry) X X X B B A A A
Toluene (methylbenzene) A A A A A A A X
Trichloroethylene (dry) A A A B A A A X
Triethanolamine B – – B A A A A
Triethyloamine A – – A A A A –
Trisodium phosphate X C A B A A A A
Turpentine B X B C A A A –
Urea A A B B A A A A
Vegetable oil A B A B A A A A
Vinegar (acetic acid ≤ 10%) B X X X B A A A
Xylene A A A A A A A X
Zinc chloride X X X X A X X A
Zinc nitrate A A A A A B B A
Zinc sulphate X B B X B A A –
Symbol Material Characteristics
AL aluminium light, limited corrosion resistance, not suitable for acids and high pressure
MS brass heavy, limited corrosion resistance, not suitable for acids
BR bronze heavy, limited corrosion resistance, not suitable for acids
ST carbon steel high tensile strength, not expensive, limited corrosion resistance
MON monel high corrosion resistance, very expensive, suitable for alkaline compounds
304 AISI 304 steel corrosion resistant, heat resistant, readily weldable, suitable for foodstuffs
316L AISI 316L steel enhanced corrosion resistance in chemical environment, heat resistant, readily weldable, suitable for foodstuffs
PP polypropylene light, for low pressure, corrosion resistance, suitable for acids, not recommended for foodstuffs