Description
4140 Low Alloy Steel Certified Reference Material (CRM)
This AISI 4140 certified reference material is a low alloy steel widely used as a standard for calibrating and verifying your spectrometer (XRF, ICP-OES, Spark-OES, etc.). This material is precisely manufactured and certified to have traceable measurements and specified impurity levels, ensuring reliable results for laboratories performing calibration, quality control, and materials testing.
For field verification and PMI work, many customers pair this material with NEW or pre-owned handheld XRF analyzers for rapid, on-site analysis.
Certified 4140 Steel Chemical Composition:
| Element | Composition 1 | Composition 2 |
| Fe | Balance | Balance |
| Al | 0.020% | 0.023% |
| As | 0.005% | |
| Sb | 0.0013% | |
| B | 0.0007% | |
| C | 0.425% | 0.405% |
| Cr | 0.97% | 0.972% |
| Co | 0.0071% | 0.0098% |
| Cu | 0.131% | 0.173% |
| Pb | 0.0005% | |
| Mn | 0.937% | 0.884% |
| Mo | 0.199% | 0.205% |
| Ni | 0.063% | 0.187% |
| Nb | 0.003% | 0.0016% |
| N | 0.0081% | 0.010% |
| O | 0.0016% | |
| P | 0.015% | 0.010% |
| Si | 0.253% | 0.256% |
| S | 0.022% | 0.036% |
| Sn | 0.008% | 0.0109% |
| Ti | 0.0024% | 0.0013% |
| W | 0.007% | 0.005% |
| V | 0.0040% | 0.0045% |
| Zr | 0.002% |
4140 Chemical Range:
| Element | Composition |
| Fe | Balance |
| C | 0.280-0.330% |
| Cr | 0.80-1.10% |
| Mn | 0.40-0.60% |
| Si | 0.15-0.30% |
| Mo | 0.15-0.25% |
| S | 0.040% max |
| P | 0.035% max |
Other Names:
Chromoly Steel 4140, Chromium-Molybdenum Steel, UNS G41400, AISI 4140, SAE 4140, EN 1.7225 / 42CrMo4, ASTM A29, ASTM A519, ASTM A322, AMS 6349
Available material forms:
- XRF:
- Composition 1: ~1/8" thick disc, ~1.5" diameter
- Composition 2: ~1/8" thick disc, ~1.5" diameter
- OES: - unavailable
- Chips:
- Composition 1: 50g of chips
- Composition 2: 50g of chips
Please Contact Us if you would like to know the specific dimensions of a sample.