Sulzer Metco

Material Product Data Sheet

Tungsten Carbide – 12% Cobalt Powders
Thermal Spray Powder Products: Sulzer Metco 5810, Sulzer Metco 5812, Woka 3101, Woka 3102,
Woka 3103, Woka 3104, Woka 3105, Woka 3106

1 Introduction

These products are spheroidal powders for thermal

spraying containing 88% tungsten carbide as a hard
material and a cobalt matrix that functions as a binder
material for the carbide particles. All products are
agglomerated and sintered, except Sulzer Metco 5810,
which is a composite powder.

Coatings of these materials are harder compared to

coatings of 83WC-17Co as a result of higher tungsten
carbide levels. Coatings are resistant to sliding wear,
hammer (impact) wear, abrasion and fretting at tempera-
tures up to 500 °C (930 °F) in non-corrosive media.

Coatings that contain tungsten carbide protect sub-

strates from the effects of fretting, abrasive grains, par-
ticle erosion, cavitation and dynamic contact with hard
surfaces. In particular, these materials can be used for
abrasion-resistant coatings in dry, non-corrosive envi-
ronments at temperatures up to 500 °C (930 °F).

HVOF and APS (using a TriplexPro®-200) coatings of

these materials are dense and show good bond strength.

1.1 Typical Uses and Applications: SEM Photomicrographs of Woka 3102 showing powder
morphology (top) and microstructure (bottom).

Tungsten carbide – 12 cobalt materials from Sulzer

Metco are among the best-known thermal spray pow-
ders for use in wear applications at service tempera- Quick Facts
tures below 500 °C (930 °F) in non-corrosive media. Classification Carbide, tungsten-based
Typical applications include: Chemistry 88WC-12Co
Agglomerated and sintered
• Steel rolls Manufacture
(Metco 5810: agglomerated only)
• Sink rolls in zinc pots
• Agricultural rasp bars Morphology Spheroidal
• Pump housings Purpose Wear resistance
• Exhaust fans Apparent Density 2.9 – 5.3 g/cm3
• Conveyor screws Flowability Free-flowing powder
• Sucker rod couplings
Service Temperature ≤ 500 °C (930 °F)
• Thread bars
• Impeller shafts Process HVOF or atmospheric plasma spray

88% WC / 12% Co Agglomerated and Sintered Powders 1/4 DSMTS-0044.0 • © 2010 Sulzer Metco
 Sulzer Metco

2 Material Information
2.1 Chemical Composition

Weight Percent (nominal)

Tungsten Cobalt Carbon (total) Iron (max)
Sulzer Metco 5810 Balance 10.0 – 13.0 5.1 (min) 1.0
Sulzer Metco 5812 Balance 10.0 – 13.0 5.1 (min) 1.0
Woka 3101 Balance 10.5 – 13.5 5.0 – 5.8 0.2
Woka 3102 Balance 10.5 – 13.5 5.0 – 5.8 0.2
Woka 3103 Balance 10.5 – 13.5 5.0 – 5.8 0.2
Woka 3104 Balance 10.5 – 13.5 5.0 – 5.8 0.2
Woka 3105 Balance 10.5 – 13.5 5.0 – 5.8 0.2
Woka 3106 Balance 10.5 – 13.5 5.0 – 5.8 0.2

2.2 Particle Size Distribution and Apparent Density

Nominal Range Primary Carbide Apparent Density

(µm) Grain Size (g/cm3)
Sulzer Metco 5810 -63 +5 Coarse 2.9 – 3.5
Sulzer Metco 5812 -53 +5 Coarse 2.9 – 3.5
Woka 3101 -53 +20 Medium 4.7 – 5.3
Woka 3102 -45 +15 Medium 4.7 – 5.3
Woka 3103 -45 +11 Medium 4.6 – 5.2
Woka 3104 -30 +10 Medium 4.5 – 5.1
Woka 3105 -38 +10 Medium 4.6 – 5.2
Woka 3106 -53 +15 Medium 4.7 – 5.3
• Particle size analysis using laser diffraction (Microtrac)
• Other particle size distributions are available on request for Woka -brand products.

2.3 Key Selection Criteria

• Select a material appropriate for the recommended • Sulzer Metco 5812 is an agglomerated and sintered
spray process and spray gun to be used. (refer to powder that produces very hard, dense and well-
Section 2.4). bonded coatings with smooth as-sprayed surface fin-
ishes. It is capable of producing reduced or compressive
• For the lowest possible ‘as-sprayed’ surface rough-
stresses in coatings when applied with the Sulzer Metco
ness, choose a material with the lowest possible par-
DiamondJet® gun. Sulzer Metco 5812 coatings exhibit
ticle size distribution and carbide particle grain size.
excellent abrasive, erosive and fretting wear resistance.
• Sulzer Metco 5810, a spheroidal, agglomerated com-
• Woka 31XX series powders are low cost alternatives
posite powder that is not sintered. Sulzer Metco 5810
to Sulzer Metco 5810 and Sulzer Metco 5812. Differ-
coatings exhibit smooth, as-sprayed surface finishes
ent particle size distributions allow their use in a wide
that may not require additional finishing for many
range of HVOF and plasma spray guns. These materi-
applications. This material has been successfully used
als produce hard, well-bonded coatings that are resi-
in steel, petrochemical, pulp, paper and power gener-
tant to abrasion, erosion and sliding wear. Woka 31XX
ation applications. Typical coated components include
series materials are not designed for use in aerospace
conveyer screws, extrusion dies, exhaust fans, thread
and/or turbine applications and cannot be certified to
guides and agricultural rasp bars.
these specifications.
88% WC / 12% Co Agglomerated and Sintered Powders 2/4 DSMTS-0044.0 • © 2010 Sulzer Metco
 Sulzer Metco

2.4 Recommended Spray Process and Spray Guns

HVOF APS
WokaJet /
K2 / Top Gun / TriplexPro-200 /
Diamond Jet WokaStar / CJS
Jet Kote HV2000 9MB / F4, etc.
JP5000
Sulzer Metco 5810
Sulzer Metco 5812
Woka 3101
Woka 3102
Woka 3103
Woka 3104
Woka 3105
Woka 3106

2.5 Related Products

• For better corrosion resistance choose: Woka 75xx or Woka 37xx series products (see data-
sheets DSMTS-0056, DSMTS-0059, respectively).
• A tungsten carbide product that contains chro-
mium within the binder matrix such as Woka 365x • When service temperatures exceed 700 °C (1290 °F),
series products, Metco 516x series products, Dia- choose a chromium carbide material with a nickel-
malloy 5847-1, Sulzer Metco 5847 (see datasheet chromium matrix such as Woka 71xx, Woka 72xx
DSMTS-0025) or Woka 360x series products (see or Woka 73xx series products (see datasheets
datasheet DSMTS-0051). DSMTS-0027, DSMTS-0031 and DSMTS-0058,
respectively).
• Chromium carbide materials such as Woka 71xx,
Woka 72xx or Woka 73xx series products (see • If higher hardness or better abrasion resistance is
datasheets DSMTS-0027, DSMTS-0031 and required, choose a tungsten carbide material with
DSMTS-0058, respectively). a cobalt-chromium matrix such as Woka 365x
series products, Metco 516x series products, Dia-
• For applications where service temperatures are
malloy 5847-1, Sulzer Metco 5847 (see datasheet
greater than 500 °C (930 °F), but less than 700
DSMTS-0025) or Woka 360x series products (see
°C (1290 °F), choose a material that contains both
datasheet DSMTS-0051)
chromium carbide and tungsten carbide, such as

3 Coating Information
3.1 Key Thermal Spray Coating Information

Specification Data (depending on spray gun and product chosen)

Microhardness (HV0.3) 850 – 1400
Macrohardness (HR15N) > 90
Wear Rate (ASTM G65 B) < 6 mm3
Porosity < 1%
Corrosion Resistance Not recommended for corrosive media
Deposition Efficiency 40% – 65%
Maximum Service Temperature 500 °C 930 °F

88% WC / 12% Co Agglomerated and Sintered Powders 3/4 DSMTS-0044.0 • © 2010 Sulzer Metco
 Sulzer Metco

3.2 Available Coating Parameter Sheets:

Coating parameters for the following spray guns are HVOF Spray Guns:
available to Sulzer Metco customers. Please contact • Water-cooled Diamond Jet
your local Sulzer Metco Account Representative. Please • Air-cooled Diamond Jet
note that parameters may not be available for all guns • WokaJet
listed for each material. Support for specific application • WokaStar
requirements are available through Sulzer Metco Coat- • JP5000
ing Solutions Centers.

4 Commercial Information
4.1 Ordering Information and Availability

Order No. Package Size Availability Distribution

Sulzer Metco 5810 1001588 5 lb (approx. 2.25 kg) Stock Global
Sulzer Metco 5812 1001600 5 lb (approx. 2.25 kg) Stock Global
1041095 5 kg (approx. 11 lb) Stock Europe
Woka 3101
1041049 10 lb (approx. 4.5 kg) Stock Americas
1041096 5 kg (approx. 11 lb) Stock Europe
Woka 3102
1041050 10 lb (approx. 4.5 kg) Stock Americas
1041097 5 kg (approx. 11 lb) Stock Europe
Woka 3103
1041051 10 lb (approx. 4.5 kg) Stock Americas
1041177 5 kg (approx. 11 lb) Special Order Europe
Woka 3104
1041189 10 lb (approx. 4.5 kg) Special Order Americas
1041098 5 kg (approx. 11 lb) Special Order Europe
Woka 3105
1041052 10 lb (approx. 4.5 kg) Special Order Americas
1041099 5 kg (approx. 11 lb) Special Order Europe
Woka 3106
1041053 10 lb (approx. 4.5 kg) Special Order Americas
Note: For products available in both kg and lb weights, the kg package will be supplied to unspecified regions (Africa,
Asia/Pacific, Japan and Middle East) unless the lb package is specifically requested by the customer.

4.2 Handling Recommendations

• Store in the original container in a dry location. • Open containers should be stored in a drying oven to
• Tumble contents prior to use to prevent segregation. prevent moisture pickup.

4.3 Safety Recommendations

MSDS No.
See the correct MSDS (Materials Safety Data Sheet) for
Sulzer Metco 5810 50-329
the product of interest localized for the country where
Sulzer Metco 5812 50-329
the material will be used. MSDS are available from the
Sulzer Metco web site at www.sulzermetco.com. Woka 31XX Series 50-877

www.sulzermetco.com • info@sulzermetco.com The Secret of Staying Ahead

Sulzer Metco (US) Inc. Sulzer Metco (Japan) Ltd. Sulzer Metco Europe GmbH Sulzer Metco AG (Switzerland) Sulzer Metco (Singapore) Pte. Ltd.
1101 Prospect Avenue 4-2 Hikawadai 3-Chome, Am Eisernen Steg 18 Rigackerstrasse 16 2 Loyang Lane
Westbury NY 11590 Nerima-ku, Tokyo 179-0084 D-65795 Hattersheim CH-5610 Wohlen # 06-02
USA Japan Germany Switzerland Singapore 508913
Tel. +1 516 334 1300 Tel. +81 359 203 302 Tel. +49 6190 8090 Tel. +41 56 618 81 81 Tel. +65 6545 0870
Fax +1 516 338 2414 Fax +81 359 203 512 Fax +49 6190 3009 Fax +41 56 618 81 01 Fax +65 6545 0816
Information is subject to change without prior notice

88% WC / 12% Co Agglomerated and Sintered Powders 4/4 DSMTS-0044.0 • © 2010 Sulzer Metco