Corrosion Testing Service

• Item Code: ASTMG48

• Item Code: NACETM0177

• Executed as per the norms
• Highly flexible
• Modern technology used 
• Rendered as per customer requirement

• Pay Mode Terms: L/C (Letter of Credit),T/T (Bank Transfer)

• Highly prompt
• Timely completion
• Perfect work
• Accurate result of test

Mett-Bio Metallurgical Testing and Services has in-house developed washers and crevice formers, complying with the ASTM G48 standard.

Tests are performed in our ISO 17025:2005 NABL accredited lab under constant supervision and expert laboratory personnel’s.

Test methods as per ASTM G 48 induces pitting and crevice corrosion in a material to measure susceptibility of material towards pitting and crevice.

This test has six unique methods described as:

Method A: Ferric Chloride pitting test

Method B: Ferric Chloride Crevice Test

Method C: Critical pitting temperature test for nickel base and chromium bearing alloys.

Method D: Critical Crevice temperature test for nickel base and chromium bearing alloys.

Method E: Critical pitting temperature test for Stainless steels.

Method F: Critical Crevice temperature test for Stainless steel.

Tests performed in our ISO 17025:2005 NABL accredited lab are:
For Austenitic Stainless Steel ASTM A262:

1. The Oxalic Acid Test (Method A)
2. The Streicher Test (Method B0
3. The Huey Test(Method C)
4. The Strauss Test(Method E)
5. Copper-Sulphate Test(Method F)

For Ferritic Stainless Steel ASTM A 763:

1. Practice W

2. Practice X

3. Practice Y

4. Practice Z

For wrought, Nickel rich, Chromium Bearing Alloys:

Mett-Bio Metallurgical Testing & Services with its state of the art equipment setup consisting of Exfoliation Corrosion setups and experienced personnel conducts testing as per ASTM G 34 test for Exfoliation Corrosion Susceptibility of 2XXX and 7XXX Series Aluminum Alloys

Tests are performed in our ISO 17025:2005 NABL accredited lab under the standard Specified conditions or as per specific field conditions. 

Exfoliation is a special form of intergranular corrosion that proceeds laterally from the sites of initiation along planes parallel to the surface.

Generally at grain boundaries, forming corrosion products that force metal away from the body of the material, giving rise to a layered appearance.

Aluminum alloys are particularly susceptible to this type of corrosion. This test method involves constant immersion of high strength 2XXX and 7XXX series

• Minimum Order Quantity: 1 Unit

• · HIC Test

Mett-Bio Metallurgical Testing & Services with its state of the art equipment setup consisting of Two-point bend, Four point bend, C-Ring setups and experienced personnel conducts SSC testing as per Methods A, B, C and D test for resistance of carbon and low alloy steels and CRAs. These

Tests are performed in our ISO 17025:2005 NABL accredited lab under the standard sour conditions or as per specific field conditions.

· NACE TM0177, Method A - Constant Load (Tensile) Test

· NACE TM0177, Method B - Bent-Beam Test (Two Point , Four Point)

· NACE TM0177, Method C - C-Ring Test

· NACE TM0177, Method D - Double-Cantilever-Beam (DCB) Test

Mett-Bio Metallurgical Testing & Services has in housedeveloped AUTOCLAVE for simulating high Pressure and highTemperature (300°C) conditions which prevails in refineries and chemical industries.

Failed test pieces are examined for crack sensitivity ratio, crack length ratio and crack thickness ratio using our optical microscopes.

Typical Outputs:

· Time To Failure

· Applied Stress Vs Log Of Time To Failure (Under Constant Load Conditions)

· Apparent Threshold Stress (Under Circumferential Loading)

· Threshold Stress Intensity Factor

· Crack Velocity

· Crack Growth Rate,

· Stress Intensity Factor

· Threshold Stress Intensity Factor

• · Cyclic Corrosion Test (CCT)

• Item Code: ASTMG85