Corrosion Analysis Metals, Alloys and Welded Joints.



Corrosion Analysis Metals, Alloys and Welded Joints.

Corrosion plays vital role with growing awareness of the losses and estimation of corrosion resistance of a material. Metalab has a team of dedicated personnel with great experience related fields who perform and monitor the corrosion studies to carry out the tests with utmost perfection. 
We are heaving number of corrosion tests based on Indian and International standards like:

Inter-granular Corrosion attack in Austenitic Stainless Steels.

  • Oxalic Acid Etch test per ASTM A262 Practice A
  • Ferric Sulphate-Sulfuric Acid test per ASTM A262 Practice B
  • Huey Test, Nitric Acid test per ASTM A262 Practice C
  • Copper–Copper Sulphate–Sulfuric Acid test per ASTM A262 Practice E
  • Copper–Copper Sulphate–50% Sulfuric Acid test per ASTM A262 Practice F
  • Corrosion test in nitric acid medium by measurement of loss in mass (Huey test) per ISO 3651-1

Inter-granular Corrosion attack in Stainless Steels

  • Oxalic acid etch test per ASTM A763 Method W.
  • Ferric Sulphate-sulfuric acid test per ASTM A763 Method X.
  • Copper-copper sulfate-50% sulfuric acid test per ASTM A763 Method Y.
  • Copper-copper sulfate-16% sulfuric acid test per ASTM A763 Method Z.
  • Inter-granular Corrosion of Ferritic, Austenitic & Ferritic-Austenitic (Duplex) Stainless Steel
  • Intergranular corrosion of stainless steels per ISO 3651-2 Method A, B, C

Corrosion Tests as per ONGC/EIL specification

  • Chloride Stress Corrosion Cracking in boiling Magnesium Chloride per ASTM G36
  • Chloride Stress Corrosion Cracking in boiling Calcium Chloride per ASTM G36
  • Pitting and Crevice Corrosion Resistance of Stainless Steels and Related Alloys
  • Ferric Chloride pitting test ASTM G48 Method A.
  • Ferric Chloride crevice test ASTM G48 Method B.
  • Critical Pitting Temperature test for nickel-base and chromium-bearing alloys per ASTM G48 Method C.
  • Critical Crevice Temperature test for nickel-base and chromium-bearing alloys per ASTM G48 Method D.
  • Critical Pitting Temperature test for Stainless Steel ASTM G48 Method E.
  • Critical Crevice Temperature test for Stainless Steel ASTM G48 Method F. 
  • Detecting Detrimental Intermetallic Phase in Austenitic/Ferritic (Duplex) Stainless Steel
  • Sodium Hydroxide Etch test of Duplex Stainless Steel per ASTM A923 Method A.
  • Charpy Impact test for Classification of Structures of Duplex Stainless Steels per ASTM A923 Method B.
  • Ferric Chloride Corrosion test for Classification of Structures of Duplex Stainless Steels per ASTM A923 Method C.

NACE MR0175/ISO 15156: Petroleum and Natural Gas Industries- Materials for use in H2S containing Environments in Oil and Gas production.

Hydrogen Induced Cracking Test per NACE TM0284.

  • Stress Oriented Hydrogen Induced Cracking Test (SOHIC) per NACE TM0103.
  • Sulphide Stress Corrosion Cracking (Room Temperature) per NACE TM0177.
  • Sulphide Stress Corrosion Cracking (90 Deg C, 16 bar) per NACE TM0177.
  • Sulphide Stress Corrosion Cracking (120 Deg C, 20 bar) per NACE TM0177.
  • Sulphide Stress Corrosion Cracking Double-Cantilever-Beam (DCB) Test per NACE TM0177 Method D.
  • Stress Corrosion Cracking (Four-Point Bend) of Materials for Oil and Gas applications per NACE TM0316.
  • Stress Corrosion Cracking (Four-Point Bend) per NACE TM0177 and ASTM G39.

Determining Susceptibility to Stress Corrosion Cracking in Copper Alloys

  • Stress Corrosion Cracking (Ammonia Vapor Test) per ASTM B858.
  • Detection of Cuprous Oxide (Hydrogen Embrittlement Susceptibility) in Copper per ASTM B577.

Metallic Material & Coated Metallic Substrate

  • Salt Spray (Fog) per ASTM B117.
  • Neutral salt spray (NSS) per ISO 9227.
  • Acetic acid salt spray (AASS) per ISO 9227.
  • Copper-accelerated acetic acid salt spray (CASS) per ISO 9227.
  • Mechanical Hydrogen Embrittlement Evaluation as per ASTM F519.

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