Stainless Steel Powder for Additive Manufacturing

Aurico Alloys LLP supplies 2 stainless steel powder grades for additive manufacturing: 316L (S31603) and 17-4 PH (S17400).

Austenitic and precipitation-hardening stainless powders: one the forgiving workhorse of metal printing, the other for when a printed part has to carry load.

Every grade and cut on this page is supplied: held in stock, or arranged with the manufacturer where a cut is not on the shelf. Tell us the alloy, the size fraction and the quantity and we will confirm availability and lead time.

Stainless Steel Powder Grades

Stainless Steel powders supplied
Grade	UNS	Specification	Size fractions	Best for
316L	S31603	ASTM F3184 (PBF)	5-25 µm · 15-45 µm · 15-53 µm · 45-105 µm · 53-105 µm · 45-150 µm · 53-150 µm	Medical and surgical instruments
17-4 PH	S17400	ASTM F3301 (PBF post-processing)	5-25 µm · 15-45 µm · 15-53 µm · 45-105 µm · 53-105 µm · 45-150 µm · 53-150 µm	Tooling

316L Stainless Steel Powder

The workhorse of metal printing. Forgiving to process, weldable, and cheap enough to use for prototyping before committing to a costlier alloy.

Applications: Medical and surgical instruments, food and pharmaceutical process parts, marine fittings, and heat exchangers.

316L powder details

17-4 PH Stainless Steel Powder

Reaches over 1300 MPa after a simple H900 age, which makes it the default when a printed stainless part has to carry real load.

Applications: Tooling, aerospace brackets, valve and pump components, and moulds.

17-4 PH powder details

Should I use 316L or 17-4 PH powder?

Use 316L when corrosion resistance and ductility matter and the part is not highly loaded; it is also the easier of the two to print. Use 17-4 PH when the part needs strength, since a simple H900 age takes it past 1300 MPa. 316L corrodes better, 17-4 PH is far stronger.

Frequently Asked Questions

316L, S31603; and 17-4 PH, S17400. Both are supplied in the standard additive manufacturing size fractions.

5-25 µm, 15-45 µm, 15-53 µm, 45-105 µm, 53-105 µm, 45-150 µm, 53-150 µm. All are supplied, held in stock or arranged with the manufacturer depending on quantity. The cut follows the process: 5-25 µm and 15-53 µm for laser powder-bed fusion and metal injection moulding, 45-105 µm for electron beam melting, 45-150 µm for directed energy deposition, and 53-150 µm for thermal spray.

Chemical analysis, particle size distribution to ASTM B822, apparent and tap density, and Hall or Carney flow rate, with ISO/ASTM 52907 reporting available on request.

Request a Quotation

Send the grade, particle size cut and quantity for a quote with lead time. Call +91 7977 88 6611 or email info@auricoalloys.com.

Minimum order 5 kg · Lead time 7 days from order confirmation.

Request a sample Contact Sales All metal powders Stainless Steel in wrought form