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Related Specifications
- ASTM B446-03 (2014) UNS N06625
- NACE MR0175/ISO 15156-3
Properties
Chemical Composition
Alloy 625
ASTM B446-03
| Chemical Element | % Present |
|---|---|
Nickel (Ni) | 58.00 - 0.00 |
Chromium (Cr) | 20.00 - 23.00 |
Molybdenum (Mo) | 8.00 - 10.00 |
Aluminium (Al) | 0.00 - 0.40 |
Carbon (C) | 0.00 - 0.10 |
Cobalt (Co) | 0.00 - 1.00 |
Columbium + Tantalum (Cb+Ta) | 3.15 - 4.15 |
Iron (Fe) | 0.00 - 5.00 |
Manganese (Mn) | 0.00 - 0.50 |
Phosphorous (P) | 0.00 - 0.02 |
Silicon (Si) | 0.00 - 0.50 |
Sulphur (S) | 0.00 - 0.02 |
Titanium (Ti) | 0.00 - 0.40 |
Mechanical Properties
Hot Worked Rod & Bar, Annealed Up to 4in (102mm) incl.
ASTM B446-03 UNS N06625 Grade 1
| Mechanical Property | Value |
|---|---|
Proof Stress | 415 Min MPa |
Tensile Strength | 830 Min MPa |
Elongation A50 mm | 30 Min % |
Hot Worked Rod & Bar, Annealed Over 4in (102mm) - 10 in (254mm)
ASTM B446-03UNS N06625 Grade 1
| Mechanical Property | Value |
|---|---|
Proof Stress | 345 Min MPa |
Tensile Strength | 760 Min MPa |
Elongation A50 mm | 25 Min % |
General Physical Properties
| Physical Property | Value |
|---|---|
Density | 8.47 g/cm³ |
Melting Point | 1290-1350 °C |
Modulus of Elasticity | 209 GPa |
Applications
- Equipment for production of phosphoric acid
- Radioactive waste treatment plants
- Oil production pipe systems and riser linings
- Offshore industry and seawater exposed equipment
- Sea-water piping in shipbuilding
- Stress corrosion cracking resistant compensators
- Furnace linings
- Components in oil and gas extraction
- Fasteners
- Wellhead components
- Propellers and shafts
Characteristics
- Exceptional resistance to pitting, crevice corrosion, erosion and intergranular corosion
- Immunity to chloride-induced stress corrosion cracking
- Good resistance to mineral acids such as nitric, phosphoric, sulfuric, and hydrochloric acids
- Good resistance to alkalis and organic acids
- Good mechanical properties
- Excellent weldability
- Low magnetic permeability
- Non magnetic and spark resistant
