Tube, wire, rod made of bronze CuSi3Mn1
Equivalent
| Grade | analogue | W. Nr. | Aisi Uns | En | Order |
|---|---|---|---|---|---|
| BrKMts3-1 | C65500 | CuSi3Mn1 | Buy from stock, view availability |
Properties of CuSi3Mn1 alloy
Grade: tinless, pressure-treated bronze.
Industrial usage: manufacture of springs, details of chemical industry, shipbuilding.
Percentage composition of CuSi3Mn1 grade
| Identification | Content |
| Ni | <0,2 |
| Pb | <0,03 |
| Sn | <0,25 |
| Zn | <0,5 |
| Si | 2.7 — 3.5 |
| Fe | <0,3 |
| Mn | 1 — 1.5 |
| Cu | 94 — 96.3 |
Main properties
Tinless bronzes do not contain scarce tin in composition. They can be substitutes for tin bronzes because their mechanical, anticorrosion, technological properties are often superior to tin bronze. Tinless bronzes can be manganese, beryllium, aluminium, depending on the main alloying component. Tinless bronzes can be pressure-treated. They are manufactured in accordance with GOST 18 175−78. This standard is applied to tinless pressure-treated bronzes which intended for a manufacture of bars, semi-fabricates.
Coefficient of friction with lubricant = 0.013
Coefficient of friction without lubricant =0.4
Alloy hardness: HB 10 -1 = 70 — 90 MPа
Mechanical characteristics of CuSi3Mn1 at 20 °C
| Mill-products | δ5 (%) | Size | KCU kJ/m2 |
ψ | sT (MPa) | σv (MPa) |
| Soft alloy | 50−60 | 350−400 | ||||
| Hard alloy | 6−8 | 650−750 |
Physical characteristics of CuSi3Mn1 grade
| l (V/(m/Degree)) | R 10 9(Ohm-m) |
C (J/(kg/degree)) | a 10 -6 (1/Degree) |
E 10 -5 (MPa) |
T (Degree) | r (kg/m3) |
| 46 | 250 | 1,15 | 20 | 8400 | ||
| 377 | 18 | 100 |
| Description | Identification: | Description | Identification: |
| — differential deposit at a process of the first crack appearing, % | å | — ultimate tensile strength (rupture strength), MPa | σv |
| — maximum shear stress, ultimate torsional strength, MPa | Jê | — elastic strength, MPa | σ0,05 |
| — ultimate bending strength, MPa | σ bend | — conventional yield limit, MPa | σ0,2 |
| — fatigue endurance limit during bending test with symmetrical load cycle, MPa | σ-1 | — percentage elongation after rupture, % | δ5,δ4,δ10 |
| — fatigue endurance limit during torsion test with symmetrical load cycle, MPa | J-1 | — yield point (contraction), MPa | σc 0,05 |
| — amount of load cycling | n | — relative shear, % | v |
| — specific electrical resistance, Ohmm | R and ρ | — short ultimate tensile strength, MPa | sv |
| — standard module of elasticity HPa | E | — contraction ratio, % | ψ |
| — properties getting temperature, Degree | T | — impact hardness, which is established on specimens with concentrators in accordance with V and U types, J/cm2 | KCU and KCV |
| — heating capacity of alloy (heat conduction coefficient), V/(m°С) | l | — permanent change of form — yield point (proportionality), MPa | sT |
| — specific heat of alloy (temperature range is 20°С), [J/(kgdeg)] | C | — Brinell hardness | HB |
| — density, kg/m3 | pn and r | — Vicker’s hardness | HV |
| — lineal thermal expansion coefficient (in a temperature range of 20°С), 1/°С | a | — Rockwell hardness C | HRC |
| — long-time strength limit, MPa | σtТ | — Rockwell hardness B | HRB |
| — module of elasticity at a process of torsional shear, HPa | G | — Shore hardness | HSD |
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