304L

W.Nr 1.4307X2CrNi18-9

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Specifications

AMS 5551AMS 5647QQS-763AMS 5566AMS 5572AMS 5651AMS 5694QQA-763

Material is released to the applicable specification with mill test reports and, on request, independent lab verification.

Fabrication notes

Machining

Austenitic grades work harden quickly, so use positive rake tooling, rigid setups, generous feed and flood coolant rather than light dwelling cuts. Martensitic and precipitation hardening grades machine most easily in the annealed or solution treated condition and are aged after rough machining.

Welding

Weldable by GTAW, GMAW, resistance and electron beam methods with matching or over alloyed filler. Stabilized and low carbon grades resist sensitization in the weld zone. Precipitation hardening grades are normally welded in the solution treated condition and aged afterward.

Forming

Sheet and strip form well in the annealed condition; cold worked tempers trade formability for strength. Allow for springback and, where specified, an intermediate anneal between draws.

Designations and cross reference

Material family
Stainless Steel
Werkstoff (W.Nr)
1.4307
EN designation
X2CrNi18-9
Series
300 Series

Working from an obsolete, foreign or superseded designation? Send it over and we will cross reference it to a current grade and specification.

Quality, testing and traceability

Supplied with mill test reports and heat traceability, with penetrant dye, ultrasonic, chemical assay, hardness, corrosion and mechanical testing available on request.

We are AS9100D and ISO 9001:2015 registered. If our stock does not already carry the inspection your specification requires, we can quote the material with that work performed. More on our quality system

Available forms

Custom sizes converted from billet, plus saw cut, waterjet and near-net blanks. See custom conversions