Certified reference material for 17-4PH stainless steel (UNS S17400), intended for XRF and spark OES calibration, verification, and quality control.

The 17-4PH Stainless Steel CRM is designed for XRF and spark optical emission spectroscopy (OES) applications where accurate verification of precipitation-hardening stainless steel chemistry is required.

This material supports reliable measurement of key alloying elements such as chromium, nickel, copper, niobium, and supporting minor and trace elements that define 17-4PH chemistry. It is well suited for routine analyzer checks, method validation, and ongoing QA/QC in both handheld and laboratory environments.

The CRM is supplied as a solid metallic disc, providing a stable and repeatable surface for XRF and OES analysis.

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 Chemical Composition

Values enclosed in parentheses ( ) are provided for reference purposes only. These values are not certified and should not be used for calibration where certified values are required. 

Intended Use (XRF & OES Only)

• Handheld and benchtop XRF analyzer verification
• Spark OES calibration and performance checks
• Confirmation of 17-4PH stainless steel chemistry
• Routine quality control and method validation

Material Details

• Alloy: 17-4PH Stainless Steel
• UNS: S17400
• Form: Solid disc
  • XRF 38 mm diameter × 3 mm thick
    
  • OES 44 mm diameter × 19 mm thick
• Usable Area: Entire depth suitable for analysis

XRF & OES Notes

• Major alloying elements (Cr, Ni, Cu, Nb) are readily measurable by XRF and spark OES
• Carbon (C) and Nitrogen (N) are included for full alloy context but are not measurable by handheld XRF
• Well suited for handheld XRF analyzers and laboratory spark OES systems

What’s Included

• 17-4PH Stainless Steel Certified Reference Material
• Certificate of Analysis with certified values and uncertainty
  

Frequently Asked Questions

What is this reference material used for?
This CRM is used for calibration, verification, and quality control of XRF and spark OES analyzers when analyzing 17-4PH stainless steel.

Is this suitable for handheld XRF analyzers?
Yes. Chromium, nickel, copper, and niobium in 17-4PH are well suited for verification using SDD-based handheld XRF systems.

Can this be used for spark OES?
Yes. The solid disc form and certified homogeneity make it suitable for spark OES calibration and performance checks.

Does this include carbon content?
Yes. Carbon is included to represent full alloy chemistry, but it is not measurable by handheld XRF and is primarily relevant for OES users.

Is this supplied as chips or solid form?
This CRM is supplied only as a solid disc for repeatable XRF and OES analysis.