CorrosiveFrom sea water to strong acids

Corrosion is one of the most common failure modes for fasteners. From applications that deal with salt water to those that need to survive hot concentrated acids, like hydrochloric acid (HCl) and sulfuric acid (H2SO4), Extreme Bolt & Fastener offers the most corrosion resistant fasteners available in the form of engineered polymers, advanced ceramic and specialty metals.

Below is a collection of corrosion guides and resources to help you better understand the the types of corrosion and general corrosion performance of the materials we offers. Depending the specific media, concentration and temperature, the acutal corrosion resistance of the materials may vary. 

If your need guidance, please contact our experienced engineering staff to help guide you to the most appropriate materials for your corrosive application.

  


Corrosion Resources & Data

   Engineered Polymers 
Specialty Metals

General Corrosion Comparison

Technical Terms of Corrosion Simplified

 

Corrosion Comparison Chart

 

 


Comparison of Corrosion Resistant Polymers

 Corrosion Resistant Polymer Comparison


Corrosion Resistance of PVDF / Kynar

PVDF Chemical Resistance

 


 

Vespel Corrosion / Chemical Resistance Data 

Vespel Corrosion Data

 


 

Torlon Corrosion / Chemical Resistance Data 

Torlon Corrosion Resistance

 


PEEK Corrosion / Chemical Resistance

 PEEK Chemical Resistance


 

 Corrosion Resistance Comparison of High Performance Nickel Alloys

 Nickel Alloy Corrosion Data


Monel / HF Iso-Corrosion Curve

Monel 400 HF IsoCorrosion Curve

 


 

Hastelloy / HCl Iso-Corrosion Curve 

C276-HCl IsoCorrosion


 

Hastelloy / H2SO4Acid Iso-Corrosion Curve 

C276-H2SO4 IsoCorrosion

 


 

Tantalum, Zirconium & Hastelloy / HCl Iso-Corrosion Curves

Specialty Metal HCl Iso-Corrosion Curve


 

Tantalum, Zirconium & Hastelloy / H2SO4 Iso-Corrosion Curves

Specialty Metal H2SO4 Iso-Corrosion Curve

 


Tantalum Corrosion Resistance Table 

TANTALUM SHOWS A NIL CORROSION RATE TO THE FOLLOWING MEDIA

For all temperatures up to at least 302°F (150°C) unless otherwise indicated 
Acetic acid
Acetic anhydride
Acetone
Air,<300°C (570°F)
Alcohols
Aldehydes
Aluminum chloride
Aluminum nitrate
Aluminum sulfate
Amines
Ammonium bicarbonate
Ammonium carbonate
Ammonium chloride
Ammonium nitrate
Ammonium acid phosphate
Ammonium phosphate
Ammonium sulfate
Amyl acetate or chloride
Aniline hydrochloride
Aqua regia
Barium carbonate
Barium chloride
Barium hydroxide
Barium nitrate
Benzoic acid
Body fluids
Boric acid
Bromine, dry, <300°C (570°F)
Bromine, wet
Butyric acid
Calcium bicarbonate 
Calcium bisulfates
Calcium bisulfites
Calcium carbonate
Calcium chloride
Calcium hydroxide
Calcium hypochlorite
Carbolic acid
Carbon dioxide
Chloric acid
Chlorinated brine
Chlorine, dry, <250°C (480°F)
Chlorine, wet, <350°C (662°F)
Chlorine oxides
Chloroacetic acid
Chromic acid
Chrome plating solutions
Citric acid
Cleaning solutions
Copper salts
Dichloroacetic acid
Dimethylformaldehyde
Ethylene dibromideEthyl sulfate
Fatty acids
Ferric chloride
Ferric sulfate
Ferrous sulfate
Food stuffs
Formaldehyde
Formic acid
Fruits
Glycerine
Graphite, <1000°C
Hydroiodic acid
Hydrobromic acid
Hydrocarbons
Hydrochloric acid
Hydrogen bromide, <400°C
Hydrogen chloride, <350°C
Hydrogen iodide
Hydrogen peroxide
Hydrogen sulfide
Hydroxyacetic acid
Hypochlorus acid
Iodine, <300°C (570°F)
Ketones
Lactic acid
Lead salts
Magnesium chloride
Magnesium hydroxide
Magnesium sulfate
Maleic acid
Manganous chloride
Methyl alcohol
Methylsulfuric acid
Milk
Mineral oils
Mixed acids (sulfuric-nitric)
Motor fuels
Nickel salts
Nitric acid
Nitric acid, fuming
Nitric oxides
Nitrogen, <300°C (570°F)
Nitrous acid
Nitrosyl chloride
Organic chlorides
Organic acids
Organic esters
Organic salts
Oxalic acid
Oxygen, <300°C (570°F)
Pechloric acid
Petroleum products
Phenol
Phosphoric acid, <4ppmF,<180°C
Phosphorus, <700°C (1290°F)
Phosphorus chlorides
Phosphorus oxychloride
Phthalic anhydride
Pickling acids, except HNO3-HF
Potassium bromide
Potassium chloride
Potassium dichromate
Potassium ferricyanide
Potassium iodine-iodine
Potassium nitrate
Potassium permanganate
Potassium sulfate
Potassium thiosulfate
Propionic acid
Refrigerants
Sea water
Silver nitrate
Sodium acetate
Sodium aluminate
Sodium bisulfate, solution
Sodium bromide
Sodium chlorate
Sodium chloride
Sodium citrate
Sodium cyanide
Sodium dichromate
Sodium hypochlorite
Sodium nitrate
Sodium nitrite
Sodium phosphate
Sodium silicate
Sodium sulfate
Sodium sulfide
Sodium sulfite
Sodium thiosulfate
Stearic acid
Succinic acid
Sugar
Sulfamic acid
Sulfur, <500°C (930°F)
Sulfur chlorides
Sulfur dioxide
Sulfuric acid, to 175°C (350°F)
Sulfurous acid
Sulfuryl chloride
Tannic acid
Tartaric acid
Thoinyl chloride
Tin salts
Zinc chloride
Zinc sulphate

TANTALUM SHOWS LIMITED CORROSION RESISTANCE TO THE FOLLOWING MEDIA

Air,>300°C (570°F)
Ammonia
Ammonium hydroxide
Fluoride salt
Hydrofluoric acid
Hydrogen, >300°C (570°F)Hydrogen fluoride
Oleum (fuming sulfuric acid)
Potassium carbonate
Potassium hydroxide, dilute
Potassium hydroxide, conc.
Potassium pyrosulfate, molten
Sodium bisulfate, molten
Sodium carbonate
Sodium hydroxide, dilute
Sodium hydroxide, conc.
Sodium pyrosulfate, molten
Sulfur trioxide
Sulfuric acid, >175°C (350°F)
 

 

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