Description
AISI 1144 / G11440 Resulfurized Carbon Steel Certified Reference Material (CRM)
This AISI 1144 certified reference material is a resulfurized carbon 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 1144 Steel Chemical Composition:
| Element | Composition |
| Fe | Balance |
| Al | 0.0019% |
| As | 0.0059% |
| B | 0.0012% |
| C | 0.469% |
| Co | 0.007% |
| Cr | 0.190% |
| Cu | 0.193% |
| Mn | 1.55% |
| Mo | 0.0293% |
| N | 0.0070% |
| Nb | 0.0016% |
| Ni | 0.085% |
| O | 0.0037% |
| P | 0.0155% |
| Pb | 0.010% |
| S | 0.281% |
| Si | 0.21% |
| Sn | 0.0084% |
| Ti | 0.0016% |
| V | 0.0037% |
| W | 0.0023% |
AISI 1144 Steel Chemical Range:
| Element | Composition |
| Fe | Balance |
| C | 0.40-0.48% |
| S | 0.24-0.33% |
| Mn | 1.35-1.65% |
| P | 0.040% max |
Other Names:
AISI 1144, UNS G11440, Stressproof, ASTM A311 Class B, S1144, High-Sulfur 1144, Carbon Steel Grade 1144
Available material forms:
- XRF: ~1/8" thick disc, ~1.5" diameter
- OES: ~0.75" thick disc, ~1.5" diameter
- Chips: 50g of chips
Please Contact Us if you would like to know the specific dimensions of a sample.

