Qsn8-0.3 Description
Qsn8-0.3 tin bronze is bronze with tin as the main alloying element. Tin content in general between 3 ~ 14%, mainly used for making elastic components and wear-resistant parts.
Komponen Kimia
Peralatan mekanis
Tensile strength σ B (MPa) : ≥350
Elongation δ10 (%) : ≥55
Note: Longitudinal tensile mechanical properties of bar at room temperature
Sample size: diameter or opposite side distance 40 ~ 120
| |
Standar singa | QSn8-0.3 |
QSn8-0.3 | |
standar Amerika | C52100 |
standar Jepang | C5210 |
Chemical composition (weight percent) | |
Sn | 7.0-9.0 |
P | 0.03-0.35 |
Dengan | batas |
Jumlah kotoran | ≤ 0.5 |
Physical properties (room temperature) | ||
Daya konduksi | ≥ 12 | %IACS |
Daya konduksi | ≥ 6.96 | MS/m |
Konduktivitas termal | 62 | W/(mK) |
Koefisien ekspansi termal | 18.2 | 10 -6 / K |
Kepadatan | 8.8 | g/cm3 |
Modulus elastis | 110 | IPK |
di antaranya 06Cr19Ni10 umumnya berarti produksi standar Cina | 380 | J/(g.K) |
rasio Poisson | 0.33 | — |
Kinerja proses | |
Kemampuan kerja dingin | Bagus sekali |
Kemampuan mesin | produk stainless steel → layar sutra → etsa → perawatan alkali → pewarnaan oksidasi → produk jadi |
Elektroplating | Bagus |
Tinning hot-dip | Bagus |
Solderabilitas | Bagus sekali |
Pengelasan resistansi | Bagus |
Penggunaan biasa
Perilaku mekanis | ||||
Negara | Kekuatan Tarik (MPa) | Pemanjangan (A 11.3 , % ) | kekerasan Vickers | |
M | O60 | ≥ 345 | ≥ 45 | ≤ 120 |
DAN 4 | H01 | 390-510 | ≥ 40 | 100-160 |
DAN 2 | H02 | 490-610 | ≥ 30 | 150-205 |
pilih kondisi perlakuan panas yang sesuai | H04 | 590-705 | ≥ 12 | 180-235 |
T | H06 | 680-740 | ≥ 5 | 200-250 |
TY | H08 | 735-833 | ≥ 2 | 230-270 |
Mainly used in the manufacture of elastic components, wear-resistant parts and anti-magnetic parts in precision instruments, such as spring contact pieces or other springs with good electrical conductivity; various altimeters in the aviation industry, springs for lifting speedometers, connecting rods, etc. , Gears, brush boxes, contactors, etc. in precision instruments.
Toleransi ketebalan | ||||||
Ketebalan (mm) | 0.08-0.15 | >0,15-0,20 | >0,2-0,3 | >0,3-0,4 | >0,4-0,6 | >0,6-0,8 |
Toleransi (mm) | ± 0,0025 | ± 0,004 | ± 0,005 | ± 0,0075 | ± 0,01 | ± 0,0125 |
Ketebalan (mm) | >0,8-1,2 | >1.2-1.5 | >1,5-2,0 | >2.0-2.6 | >2.6-3.0 | >3.0-4.0 |
Toleransi (mm) | ± 0,015 | ± 0,02 | ± 0,025 | ± 0,03 | ± 0,04 | ± 0,05 |
Toleransi lebar | ||||||
Ketebalan (mm) | 0.08-0.5 | >0,5-1,0 | >1.0-1.8 | >1.8-3.0 | >3.0-4.0 | |
Lebar dan Toleransi mm） | 5-50 | ± 0,05 | ± 0,08 | ± 0,1 | ± 0,2 | ± 0,3 |
>50-100 | ± 0,075 | ± 0,1 | ± 0,15 | ± 0,2 | ± 0,3 | |
>100 | ± 0,1 | ± 0,15 | ± 0,2 | ± 0,3 | ± 0,5 |
Kesalahan | |
Ketebalan (mm) | Edge Burr ( mm ), tidak lebih besar dari |
≤ 0,50 | 0.02 |
>0,50-1,0 | 0.04 |
>1.0-2.0 | 00,05 |
>2.0-4.0 | 0.1 |
Kinerja lentur | ||||
Kondisi | Radius Dalam Tikungan Minimum (mm) | |||
Ketebalan /t : 0,15-0,30mm | Ketebalan /t : 0,30-1,0mm | |||
Arah yang bagus | Arah yang buruk | Arah yang bagus | arah yang buruk | |
O60 | 0 × t | 0 × t | 0 × t | 0 × t |
H01 | 0 × t | 0 × t | 0 × t | 0 × t |
H02 | 0 × t | 0 × t | 0 × t | 0 × t |
H04 | 0 × t | 1,0×t | 1,0×t | 2,0×t |
H06 | 1,5×t | 4,0×t | 2,0×t | 5,0×t |
H08 | - | - | - | - |
Kekasaran permukaan | |
Ra (μ m ) | ≤ 0,3 |
Kelengkungan samping h ( mm/m ) | |||
| Lebar (mm) | Ketebalan (mm) | ||
0.08-0.6 | >0,6-2,0 | 2.0-4.0 | |
≤ 9 | ≤ 1,0 | ≤ 1,0 | — |
>9-13 | ≤ 1,0 | ≤ 1,0 | — |
>13-25 | ≤ 1,0 | ≤ 1,0 | — |
>25-50 | ≤ 1,5 | ≤ 1,0 | — |
>50-100 | ≤ 1,5 | ≤ 1,5 | — |
>100-625 | ≤ 1,5 | ≤ 1,5 | — |
Kelengkungan lateral | |||
Lebar L (mm) | ≤ 50 | >50-200 | >200-625 |
Kelengkungan melintang h ( mm ), tidak lebih dari | 00,01 × L | 0.015×L | 00,02 × L |
Kerataan memanjang (berbelit-belit) | ||
Lebar (mm) | ≤ 100 | >100-625 |
Lurus memanjang h ( mm/m ) | ≤ 3 | ≤ 5 |
Memutar | |||
Lebar (mm) | ≤ 30 | >30-100 | >100-625 |
Torsi (°) | ≤ 10 | ≤ 5 | — |
halaman melengkung | |||
Lebar (mm) | ≤ 100 | >100-300 | >300-625 |
Melengkung h ( mm/m ) | ≤ 50 | ≤ 100 | — |
