Description
This 4340 Low Alloy Steel Certified Reference Material is intended for instrument calibration, method validation, and quality control in laboratories performing elemental analysis on high-strength alloy steels. The chemistry aligns with UNS G43400–type alloys commonly used in aerospace, defense, power generation, heavy machinery, and high-stress mechanical applications.
This CRM is available in multiple physical formats, each optimized for a specific analytical technique to ensure proper excitation conditions, homogeneity, and repeatability.
Certified Chemical Composition (wt.%)
| Element | Certified Value | Uncertainty |
|---|---|---|
| C | 0.42 | ±0.02 |
| Mn | 0.658 | ±0.009 |
| Cr | 0.81 | ±0.03 |
| Ni | 1.85 | ±0.03 |
| Mo | 0.235 | ±0.009 |
| Si | 0.283 | ±0.009 |
| Cu | 0.170 | ±0.006 |
| Al | 0.022 | ±0.002 |
| P | 0.0078 | ±0.0009 |
| S | 0.016 | ±0.002 |
| N | 0.0060 | ±0.0009 |
| Co | 0.014 | ±0.002 |
| Sn | 0.008 | ±0.001 |
| Ti | 0.0019 | ±0.0006 |
| V | 0.0033 | ±0.0008 |
| O | 0.0009 | ±0.0003 |
| Fe | Balance | — |
Common & Equivalent Alloy Designations
AISI 4340, SAE 4340, UNS G43400, ASTM A29 4340, ASTM A322 4340, ASTM A331 4340, AMS 6340, AMS 6350, AMS 6414, AMS 6415, EN 10083-3 34CrNiMo6, DIN 1.6582, DIN 34CrNiMo6, ISO 683-1 34CrNiMo6, JIS SNCM439, JIS SNCM430, GB/T 3077 34CrNiMo6, BS 970 817M40, AFNOR 35NCD6, NF EN 10083-3 34CrNiMo6
Available Sample Forms
- XRF Disc (~ 6 mm thickness)
- OES Disc (~ 19 mm thickness)
- ICP-OES Chips (100 g)
- Combustion Analysis Chips (100 g)
Each format is sold separately. Select the form that matches your analytical method.