Copper Alloy BrAZhMts10-3-1.5
BrAZhMts10-3-1.5 is a high-strength cast aluminium bronze with iron and manganese additions, equivalent to UNS C95400, available sand, chill and centrifugally cast as well as heat-treated, extruded or annealed.
Reference datasheet — BrAZhMts10-3-1.5 is not in the instant-quote catalog. Upload your part and an engineer will quote it in this grade or suggest the closest stocked equivalent.
Values for the SAND condition
BrAZhMts10-3-1.5 tempers and conditions
BrAZhMts10-3-1.5 is supplied in 5 conditions, soft to hard. SAND is the default FabDigit quotes; the values on this page are for it.
Compare all 5 conditionsHide
| Condition · open for datasheet | Best for | Yield MPa | Tensile MPa | Elong. % | Hardness | Conductivity |
|---|---|---|---|---|---|---|
SANDDefault Sand cast | Default stocked condition for large gear blanks, housings and propeller castings. | 200 | 490 | 12 | 120 HB | 13 % IACS |
Chill / permanent-mould cast | Pick for smaller series parts needing finer grain and ~10 % higher strength than sand cast. | 230 | 550 | 14 | 130 HB | 13 % IACS |
Centrifugally cast | Best choice for bushings, worm-wheel rims and sleeves — dense, porosity-free wall. | 240 | 570 | 14 | 135 HB | 13 % IACS |
Annealed | Softened condition for further hot/warm forming or when maximum ductility is needed. | 240 | 560 | 20 | 140 HB | 13 % IACS |
Heat treated | Use when maximum hardness and wear resistance on heavy-duty gears/valve trim is required. | 320 | 655 | 8 | 14 HRC | 12 % IACS |
Supply forms, finishes and certifications
Ways BrAZhMts10-3-1.5 is supplied — form, process route, surface or paperwork — without a datasheet of their own. The property values above apply.
| Option | What it is | Type |
|---|---|---|
EXT | Extruded / pressed bar and tube (прессованный), GOST 18175-78 | Supply form |
What is BrAZhMts10-3-1.5?
BrAZhMts10-3-1.5 is a high-strength cast aluminium bronze with iron and manganese additions, equivalent to UNS C95400, available sand, chill and centrifugally cast as well as heat-treated, extruded or annealed. It is used for heavily loaded wear and marine parts, offering 200 MPa yield, 490 MPa tensile, 12 % elongation, 120 HB and service to 300 °C. The duplex α+κ structure limits cold formability and gives a machinability rating of 45, and the alumina film must be removed before welding or plating. C95200 (BrAZh9-4) is the more ductile, easier-to-weld alternative. BrAZhMts10-3-1.5 has a density of 7.5 g/cm³ (0.271 lb/in³), lighter than 98% of copper alloy grades. It melts at 1,040°C (1,904 °F). BrAZhMts10-3-1.5 has a yield strength of 200 MPa (29 ksi) and a tensile strength of 490 MPa (71.1 ksi) — weaker than 54% of copper alloy grades. Elongation at break is 12% and the elastic modulus is 110 GPa (16 Msi).
What is BrAZhMts10-3-1.5 used for?
- marine propellers
- heavy-duty gears
- structural castings
Advantages
- Lightweight — 7.5 g/cm³ (0.271 lb/in³), better than 98% of copper alloy grades
- Good corrosion resistance — 75/100, better than 90% of copper alloy grades
- High service temperature — 300°C (572 °F), better than 85% of copper alloy grades
- Readily welded — 70/100, better than 85% of copper alloy grades
Limitations
- Low fracture toughness — 30 MPa·√m (27.3 ksi·√in), worse than 88% of copper alloy grades
BrAZhMts10-3-1.5 properties
Typical room-temperature values for BrAZhMts10-3-1.5-SAND; bars are the position among copper alloy grades.
Physical3
BrAZhMts10-3-1.5 has a density of 7.5 g/cm³ (0.271 lb/in³), lighter than 98% of copper alloy grades. It melts at 1,040°C (1,904 °F).
Mechanical16
BrAZhMts10-3-1.5 has a yield strength of 200 MPa (29 ksi) and a tensile strength of 490 MPa (71.1 ksi) — weaker than 54% of copper alloy grades. Elongation at break is 12% and the elastic modulus is 110 GPa (16 Msi).
Thermal6
BrAZhMts10-3-1.5 is rated for continuous service to 300°C (572 °F). It conducts heat at 59 W/m·K (34.1 BTU/hr·ft·°F), worse than 61% of copper alloy grades. Thermal expansion is 16.2 µm/m·K (9 µin/in·°F).
Electrical3
BrAZhMts10-3-1.5 conducts electricity at 13 % IACS, worse than 58% of copper alloy grades.
Chemical & Environmental3
Corrosion resistance is very good (75/100), better than 90% of copper alloy grades.
Sustainability4
Producing a kilogram of BrAZhMts10-3-1.5 takes about 60 MJ of energy and emits 4 kg of CO₂ — more than 69% of copper alloy grades. Typical recycled content is 45%.
Manufacturability8
BrAZhMts10-3-1.5's machinability is fair (45/100, better than 64% of copper alloy grades); weldability very good (70/100); formability poor (25/100).
Common Calculations5
Values are nominal handbook figures for design screening. Certified mill or lot data ships with every FabDigit order on request.
Strength versus weight in the copper alloy family
Yield strength against density for every copper alloy grade FabDigit runs. BrAZhMts10-3-1.5 is highlighted; hover a dot for its name, or open the interactive family chart.
Working with BrAZhMts10-3-1.5
Is BrAZhMts10-3-1.5 easy to machine?
Machines like a tough ductile bronze: rigid setup, positive-rake carbide, 60–120 m/min, moderate feed and flood coolant; it work-hardens and produces stringy chips, so avoid dwelling and use chip-breaking geometry.
Can BrAZhMts10-3-1.5 be welded?
Weldable by GTAW/GMAW with matching Cu-Al filler (ERCuAl-A2) under argon; wire-brush/clean the Al₂O₃ film immediately before welding, preheat 150–250 °C on heavy sections and avoid slow cooling through 320–600 °C.
Can BrAZhMts10-3-1.5 be formed, bent or molded?
Hot work or press-forge at 750–900 °C; cold formability is limited by the α+κ duplex structure. As a casting it needs bottom gating, generous risers and quiescent filling to avoid entrained oxide films.
BrAZhMts10-3-1.5 chemical composition (wt %)
Limits by weight percent from the governing specification, written the way the spec states them — a single maximum for impurities, a range for alloying elements, and the base element as balance. Nominal is the typical mid-range value.
| Element | Spec limit (wt %) | Nominal |
|---|---|---|
| Alprimary strengthener, forms α+κ duplex structure | 9 – 11 | 10 |
| Fegrain refiner, Fe-rich κ phase for wear resistance | 2 – 4 | 3 |
| Mndeoxidiser, improves toughness and castability | 1 – 2 | 1.5 |
| Znimpurity limit | ≤ 1 | |
| Siimpurity limit | ≤ 0.1 | |
| Snimpurity limit | ≤ 0.1 | |
| Pbimpurity limit | ≤ 0.03 | |
| Pimpurity limit | ≤ 0.01 | |
| Nicounted with impurities in GOST | ≤ 0.5 | |
| Cubalance; total impurities ≤ 1.0 % | balance |
What surface finishes work on BrAZhMts10-3-1.5?
Not anodisable; finish by pickling/passivation, shot blast, or polish to a golden bronze lustre, and apply lacquer or accept a natural protective patina. Chrome or EN plating is possible after thorough oxide removal.
Surface treatments FabDigit runs on copper alloy parts — pick them in the quote configurator or call them out on the drawing. Each links to its datasheet in the surface-finish library (thickness, specs, call-out, material verdicts).
Equivalent designations
Standards and trade names that resolve to Copper Alloy BrAZhMts10-3-1.5 in FabDigit's catalog. Equivalence is nominal — check the exact specification when certification matters.
- Similar grades
- C95400
How much does BrAZhMts10-3-1.5 cost?
BrAZhMts10-3-1.5 is a high-cost copper alloy ($$$$), pricier than about 78% of the materials FabDigit quotes. Part price depends far more on geometry, tolerance and quantity than on the raw stock — upload a CAD file for a live quote.
BrAZhMts10-3-1.5 — frequently asked
What is BrAZhMts10-3-1.5 used for?
BrAZhMts10-3-1.5 is typically used for marine propellers, heavy-duty gears and structural castings. In short: strongest common cast aluminium bronze; heavy-duty gear and propeller alloy; good galling resistance.
What is the yield strength of BrAZhMts10-3-1.5?
BrAZhMts10-3-1.5 has a typical yield strength of 200 MPa (29 ksi) and a tensile strength of 490 MPa (71.1 ksi) — weaker than 54% of copper alloy grades. Strength varies by condition: see the 5 listed tempers.
Is BrAZhMts10-3-1.5 easy to machine?
Reasonably — machinability is rated fair (45/100, better than 64% of copper alloy grades). Machines like a tough ductile bronze: rigid setup, positive-rake carbide, 60–120 m/min, moderate feed and flood coolant; it work-hardens and produces stringy chips, so avoid dwelling and use chip-breaking geometry.
Can BrAZhMts10-3-1.5 be welded?
Yes — weldability is rated very good (70/100). Weldable by GTAW/GMAW with matching Cu-Al filler (ERCuAl-A2) under argon; wire-brush/clean the Al₂O₃ film immediately before welding, preheat 150–250 °C on heavy sections and avoid slow cooling through 320–600 °C.
What surface finishes work on BrAZhMts10-3-1.5?
Not anodisable; finish by pickling/passivation, shot blast, or polish to a golden bronze lustre, and apply lacquer or accept a natural protective patina. Chrome or EN plating is possible after thorough oxide removal.
Can BrAZhMts10-3-1.5 be formed, bent or molded?
Hot work or press-forge at 750–900 °C; cold formability is limited by the α+κ duplex structure. As a casting it needs bottom gating, generous risers and quiescent filling to avoid entrained oxide films.
What is the maximum service temperature of BrAZhMts10-3-1.5?
BrAZhMts10-3-1.5 is rated for continuous use to about 300°C (572 °F). Strength falls off well before that limit — check the elevated-temperature data for load-bearing parts.
What is the difference between BrAZhMts10-3-1.5 SAND and BrAZhMts10-3-1.5-HT?
SAND is the default condition — default stocked condition for large gear blanks, housings and propeller castings. HT: use when maximum hardness and wear resistance on heavy-duty gears/valve trim is required. Yield strength is 200 MPa in SAND versus 320 MPa in HT.
How much does BrAZhMts10-3-1.5 cost?
BrAZhMts10-3-1.5 is a high-cost copper alloy ($$$$), pricier than about 78% of the materials FabDigit quotes. Part price depends far more on geometry, tolerance and quantity than on the raw stock — upload a CAD file for a live quote.
Sources
- GOST 493-79 — Cast tin-free bronzes (БрАЖМц10-3-1.5) — Gosstandart (1979)
- GOST 18175-78 — Wrought tin-free bronzes — Gosstandart (1978)
- GB/T 1176 / GB/T 4423 — / (QAl10-3-1.5) — SAC (2013)
- ASTM B148 — Aluminum-Bronze Sand Castings (C95400) — ASTM (2018)
- ASM Handbook Vol. 2 — Properties of Copper and Copper Alloys — ASM International (1990)
- CDA alloy datasheet C95400 — Copper Development Association (2023)
Property data is compiled from published supplier and standards handbooks and normalised for comparison; hardness values on non-Brinell scales are converted approximately for charting only. Manufacturability limits are FabDigit quote-engine defaults and may be relaxed by engineering review. Nothing on this page is a certification — request mill certs, CoC or material test reports with your order.