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.
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
Reference Material (RM):
A reference material, or RM, is a material with a known grade and/or chemical composition that is typically used for alloy or grade identification.
Certified Reference Material (CRM):
A certified reference material, or CRM, is a material that has been thoroughly analyzed and characterized using multiple validated methods to determine its chemical composition. The results of these analyses are then used to establish certified values, along with associated uncertainties. CRMs are produced and certified by accredited organizations or laboratories following internationally recognized standards, such as ISO Guide 34 (ISO 17034).
Please Contact Us if you would like to know the specific dimensions of a sample.