High High Temperature Temperature Brazing Powders Brazing Powders & Paste& Paste

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High-temperature brazing is a fluxless brazing process carried out, under vacuum or in controlled atmosphere, above 900°C. In addition to controlled settings, quality brazing consumables is required for efficient brazing. You can find demand of Dura-Metal’s quality brazing powder in chemical processing equipment, heat exchangers, catalytic converters as well as fuel cells. Dura-Metal’s high-temperature brazing powders are supplied in containers of 5kgs and our experienced engineering team will be able to custom-built paste upon request to support development projects. We also supply a range of binders which are used to apply and fix the brazing powder. The binders are designed for manual, automatic, spray, stenciling and print based methods and is available in water or organic based.

DM GRADE Ni Cr B Si P Fe C Mn W Cu Melting

range ˚C Specification Description

BP-Ni 1 Bal 14 3.25 4.5 4.5 0.75 980-1060 AWS A5.8 BNi-1 AMS 4775

High strength and heat resistant joints. Suitable for turbine blades.

BP-Ni 1A Bal 14 3.1 4.5 4.5 980-1070 AWS A5.8 BNi-1a

AMS 4776

High strength and heat resistant joints. Carbon free alternative to BP-Ni 1. Good resistance to chemical corrosion.

BP-Ni 2 Bal 7 3.25 4.4 3 970-1000 AWS A5.8 BNi-2 AMS 4777

Excellent for high stress and temperature application and also Food processing equipment.

BP-Ni 3 Bal 3.1 4.5 980-1040 AWS A5.8 BNi-3 AMS 4778

Combines excellent strength and oxidation resistance. Widely used for furnace brazing aircraft parts, food handling equipment and medical devices.

BP-Ni 4 Bal 1.85 3.5 980-1070 AWS A5.8 BNi-4 AMS 4779

Low diffusion and wide melting range. Excellent for wide gap joint type application.

BP-Ni 5 Bal 19 10 1080-1135

AWS A5.8 BNi-5 AMS 4782

High strength, oxidation and corrosion resistance at elevated temperature. Boron free, suitable for certain nuclear applications.

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DM GRADE Ni Cr B Si P Fe C Mn W Cu Melting

range ˚C Specification Description

BP-Ni 6 Bal 11 875-875 AWS A5.8 BNi-6

Low brazing temperature. Suitable for thin wall sections (jet engines components, tubing, heat exchangers).

BP-Ni 7 Bal 14 10.1 890-890 AWS A5.8 BNi-7

Used for brazing thin wall tube assemblies. Excellent braze wetting at low temperature with low erosion. Provide strong leak proof joints.

BP-Ni 8 Bal 7 4.5 980-1010

Highly suitable for brazing thin walled assemblies such as heat exchangers and honeycomb. Good erosion and corrosion properties.

BP-Ni 9 Bal 15 3.7 1020-1050 AWS A5.8 BNi-9

Good combination of joint ductility and high hardness.

BP-Ni 10 Bal 12 2.5 3.5 3.5 0.5 16 880-950 AWS A5.8 BNi-10

High strength at elevated temperature with good ductility. Suited to brazing substrates containing Mo, W and Co.

BP-Ni 11 Bal 10 3.5 3.5 3.5 0.4 12 970-1095 AWS A5.8 BNi-11

Similar to BP-Ni 10 but with free flow. Suitable for thin walled components where close gaps are difficult to apply.

BP-Ni 12 Bal 25 10 880-950 AWS A5.8 BNi-12

Low processing temperature. Good strength, toughness and corrsion resistance.