• AMPCO METAL
  • Weld Wire Division

AMPCO-TRODE® 40

AMPCO-TRODE® 40

Description and Application

AMPCO-TRODE® 40 manganese-nickel-aluminum bronze is available in coated electrodes, bare filler metal rod and wire for welding cast ship propellers conforming to MIL-B-21230, Alloy 2 for high resistance to corrosion, erosion and cavitation.

AMPCO-TRODE® 40 also exhibits good ability to join dissimilar metals.

Typical Applications

Ship propellers
Marine components
Welding cast iron
Joining dissimilar metals

AMPCO-TRODE® 40 Coated

Limiting Chemical Composition

% (deposited weld metal)

Copper*Balance
Aluminum7.0 – 8.50
Iron2.0 – 4.0
Nickel1.5 – 3.0
Manganese11.0 – 14.0
Silicon1.5 max.
Others0.50 max.

* including silver

Mechanical Properties

(Nominal all-weld metal values)

Tensile Strength, ksi95 (655 MPa)
Yield Strength, ksi56 (386 MPa)
Elongation, % in 2″ (51 mm)27
Reduction of Area, %
BHN (3000kg)
38
1/4″ (6.4 mm) deposit185

Specifications

AWS A5.6 Class E CuMnNiAl
ASME SFA 5.6 Class E CuMnNiAl

AMPCO-TRODE® 40 Bare

Limiting Chemical Composition

% (filler metal)

Copper*Balance
Aluminum7.0 – 8.50
Iron2.0 – 4.0
Nickel1.5 – 3.0
Manganese11.0 – 14.0
Others0.50 max.

* including silver

Mechanical Properties

(Nominal all-weld metal values)

Tensile Strength, ksi110 (759 MPa)
Yield Strength, ksi67 (462 MPa)
Elongation, % in 2″ (51 mm)27
Reduction of Area, %
BHN (3000kg)
37
1/4″ (6.4 mm) deposit217

Specifications

AWS A5.7 Class ER CuMnNiAl
ASME SFA 5.7 Class ER CuMnNiAl

*Hardness will vary depending on quality of the weld and experience and knowhow of the welder.
Document Download

AMPCO-TRODE® 40 Technical Data Sheet

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