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Techniques
Bulk chemical analyses on metals and materials are available using the following techniques:
- Optical Emission Spectroscopy
- Combustion (LECO) for C & S
- Atomic Absorption
Surface analyses are available by SEM/EDS.
Phase identification is available by X-ray Diffraction.
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| Test |
Sample |
Materials |
Detection Limits |
Optical Emission Spectroscopy
(OES) |
Solid samples.
Min. diameter 12mm
Min. thickness 0.5mm |
Iron, aluminium, copper, nickel and cobalt-based alloys |
>0.0002%, depending on element and sample.
Elements include:
Ag, Al, As, B, Bi, C, Ca, Ce, Co, Cr, Cu, Fe, Mg, Mn, Mo, N, Nb, Ni, P, Pb, S, Sb, Si, Sn, Te, Ti, V, W, Zn, Zr. |
Combustion
(LECO) |
Solid samples, turnings or powders.
Minimum weight 5g |
Ferrous alloys |
C : 0.0002% to 10.0%
S : 0.0002% to 1.0% |
| Atomic Absorption |
Solid samples, turnings, powders or solutions.
Minimum weight 10g |
Ferrous alloys
Non-ferrous alloys
Inorganic materials |
>0.0005%, depending on element and sample.
Elements include:
Ag, Al, As, B, Be, Bi, Ca, Cd, Ce, Co, Cr, Cu, Fe, Mg, Mn, Mo, Nb, Ni, Pb, Sb, Si, Se, Sn, Sr, Ta, Te, Ti, V, W, Zn, Zr. |
| SEM/EDS |
Solid samples or powders.
Very small samples possible. |
Ferrous alloys
Non-ferrous alloys
Inorganic materials |
>0.1%, depending on element and sample.
Elements with atomic number ≥ 5 |
| X-ray Diffraction |
Solid samples or powders. |
Crystalline solids |
>1.0%, depending on phase and sample. |
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Standards
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| E34-94(1998) |
Standard Test Methods for Chemical Analysis of Aluminum and Aluminum-Base Alloys |
| ASTM E350-95(2000)e1 |
Standard Test Methods for Chemical Analysis of Carbon Steel, Low-Alloy Steel, Silicon Electrical Steel, Ingot Iron, and Wrought Iron |
| ASTM E351-93(2000)e1 |
Standard Test Methods for Chemical Analysis of Cast Iron--All Types |
| ASTM E352-93(2000)e1 |
Standard Test Methods for Chemical Analysis of Tool Steels and Other Similar Medium- and High-Alloy Steels |
| ASTM E353-93(2000)e1 |
Standard Test Methods for Chemical Analysis of Stainless, Heat-Resisting, Maraging, and Other Similar Chromium-Nickel-Iron Alloys |
| ASTM E354-93(2000)e1 |
Standard Test Methods for Chemical Analysis of High-Temperature, Electrical, Magnetic, and Other Similar Iron, Nickel, and Cobalt Alloys |
| ASTM E415-99a |
Standard Test Method for Optical Emission Vacuum Spectrometric Analysis of Carbon and Low-Alloy Steel |
| ASTM E607-90(1996) |
Standard Test Method for Optical Emission Spectrometric Analysis of Aluminum and Aluminum Alloys by the Point-to-Plane Technique, Nitrogen Atmosphere |
| ASTM E1251-94(1999) |
Standard Test Method for Optical Emission Spectrometric Analysis of Aluminum and Aluminum Alloys by the Argon Atmosphere, Point-to-Plane, Unipolar Self-Initiating Capacitor Discharge |
| ASTM E1999-99e1 |
Standard Test Method for Analysis of Cast Iron Using Optical Emission Spectrometry |
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Please contact us with your enquiry or telephone if you prefer.
MATERIALS.CO.UK is a division of Inspiratech
2000 Ltd
Tel: 01788 522792 • Fax: 01788 522905
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