PRODUCTS
home

Metal Powder

KOS provides high quality powder optimal for AM (3-D printing,)
and we strive to satisfy the various needs of our customers through customized production.

  • EIGA
  • Titanium Alloys
  • Nickel Alloys
  • Stainless Steels

KOS provides high quality powder produced through EIGA(Electrode Induction Melting Inert Gas Atomization) system.

Characteristics

We provide high-purity spheronized powder

We manage the ideal distribution of grain size.

We can produce reactive metal (Ti, Zr) powder.

Product specifications

PBF (Powder Bed Fusion) : 10~53㎛

PBF-EBM (Powder bed fusion - Electron beam) : 45~150㎛

DED (Directed energy deposition) : 45~150㎛

Etc. (Customized powder size for other Additive manufacturing process)

Quality Control

Chemical composition

Particle size distribution by sieving (ASTM B214)

Particle size distribution by laser diffraction (ASTM B822)

Apparent / Tap density (ASTM B212 / ASTM B527)

Flowability (ASTM B213 and ASTM B964)

Powder Imaging (SEM)

Powder Cross-Section/Porosity Imaging (OM or SEM)

Application : ADDITIVE MANUFACTURING(AM), METAL INJECTION MOLDING(MIM), THERMAL SPRAY(TSA)

 

Ti Gr.2

COMPOSI
TION
GRADE
C O N H Fe
TI-2 Max 0.08 Max 0.25 Max 0.03 Max 0.015 Max 0.30

Specifications : ATSM B348, ASTM F67

Ti Gr.5

COMPOSI
TION
GRADE
C O N H Fe AI V Y
TI-5 Max 0.08 Max 0.20 Max 0.05 Max 0.015 Max 0.30 5.5 - 6.75 3.5 - 4.5 Max. 0.005

Specifications : ASTM B348, ASTM F2924

Ti Gr.23

COMPOSI
TION
GRADE
C O N H Fe AI V Y
TI-23 Max 0.08 Max 0.13 Max 0.05 Max 0.012 Max 0.25 5.5 - 6.5 3.5 - 4.5 Max. 0.005

Specifications : ASTM B348, ASTM F3001

Size

0~15㎛, 15~45㎛, 15~53㎛, 45~106㎛, 45~150㎛, Etc. (Customized powder size for other Additive Manufacturing process)

SEM image (Ti Gr.23 15~45㎛)

  • x200

  • x500

Application : Aerospace, Medical Devices

Package : 2.5KGS

 

ALY718 (IN718)

COMPOSI
TION
GRADE
C Mn Si P S Cr Co Mo Nb+Ta Ti Al B Fe Cu Ni
ALY718 Max 0.08 Max 0.35 Max 0.35 Max 0.015 Max 0.015 17.0 - 21.0 Max 1.0 2.80 - 3.30 4.75 - 5.50 0.65 - 1.15 0.20 - 0.80 Max 0.006 Re - mainder Max 0.30 50.0 - 55.0

Specifications : ASTM B637, ASTM F3055

ALY625 (IN625)

COMPOSI
TION
GRADE
C Mn Si P S Cr Co Mo Nb Ti Al Fe Ni
ALY625 Max 0.10 Max 0.50 Max 0.50 Max 0.015 Max 0.015 20.0 - 23.0 Max 1.0 8.0 - 10.0 3.15 - 4.15 Max 0.40 Max 0.40 Max 5.00 Re - mainder

Specifications : ASTM B446, ASTM F3056

Size

0~15㎛, 15~45㎛, 15~53㎛, 45~106㎛, 45~150㎛, Etc. (Customized powder size for other Additive Manufacturing process)

SEM image (ALY718 15~45㎛)

  • x200

  • x500

Application : Aerospace, Marine Industries

Package : 5.0KGS

 

316L

COMPOSI
TION
GRADE
Cr Ni Mo Mn S C P N Si Fe
316L 16.0 - 18.0 10.0 - 14.0 2.0 - 3.0 Max. 2.00 Max 0.03 Max. 0.03 Max. 0.045 - Max. 1.00 Bal.

Specifications : ASTM A479, ASTM F3184

630 (17-4PH)

COMPOSI
TION
GRADE
C Cr Ni Mn Si P S Cu Nb+Ta Fe
630 Max. 0.07 15.0 - 17.5 3.0 - 5.0 Max. 1.00 Max 1.00 Max. 0.040 Max. 0.03 3.0 - 5.0 0.15-0.45 Bal.

Specifications : ASTM A564

Size

0~15㎛, 15~45㎛, 15~53㎛, 45~106㎛, 45~150㎛, Etc. (Customized powder size for other Additive Manufacturing process)

SEM image (316L 15~45㎛)

  • x200

  • x500

Application : Aerospace, Marine Industries

Package : 5.0KGS