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2A70 Aircraft aerospace aluminum plate forgings profile

2A70 Aircraft aerospace aluminum plate forgings profile

aircraft aluminum 2024

2024-t3 aircraft aluminum

aircraft aluminum forgings

2014 aluminum forging

aircraft aluminum 2024

2024-t3 aircraft aluminum

aircraft aluminum forgings

2014 aluminum forging

aircraft aluminum 2024

2024-t3 aircraft aluminum

aircraft aluminum forgings

2014 aluminum forging

aircraft aluminum 2024

2024-t3 aircraft aluminum

aircraft aluminum forgings

2014 aluminum forging
 
Chemical Property of 2A70 Alloy
Alloy Si Fe Cu Mn Mg Cr Ni Zn Ti Zr Others Al
Each Total
2A70 0.35 0.9~1.5 1.9~2.5 0.2 1.4~1.8 0.9~1.5 0.30 0.02~0.10 0.05 0.15 Remainder

Alloy Alloy series Main Features
2A70 Al-Cu-Mg-Ni Heat treatment strengthened alloy, Al-Cu-Mg-Si heat treated aluminum alloy, heat resistant alloy used in artificial aging, and 2A70, 2A80 and 2A90 alloy used in aviation industry. 2A70 alloy has the highest heat resistance, the most widely applied and the applied temperature is 200~250 C. the alloy has good technological characteristics, and can be processed into plates, strips, rods, profiles and free forgings, die forgings and so on. In aircraft manufacturing, it is mostly used for forging engine piston, impeller, wheel, compressor blade, and other parts used at high temperature.

Calibration mechanical properties of 2A70 T6 alloy
Standard Type d/mm Direction Rm/Mpa A5/% HBS
GB/T 3191 Extrusion aluminum round bar ≤150 L 355 8
GJB 2054 Aluminum round bar 5~150 L 355 8
>150 345 6
HB 5202 Extruded aluminum round bar ≤22 L 355 8.0
23~160 375 8.0
GJB 2351 Free forgings and die forgings L 375 4.0 110
LT 375 4.0
ST 375 4.0
HB 5204 Free forgings L 375 5.0 110
LT 375 5.0
ST 375 5.0
Die forgings L 380 5.0 110
LT 380 5.0
ST 380 5.0
Typical room temperature mechanical properties of alloy 2A70 T6
Type Temper δ/mm      Direction Rm/Mpa Rp0.2/Mpa A5/%
Clad aluminum sheet O 1.0~10 L 245   15
T6 1.0~1.5 L 392 265 13
1.6~2.5 402 275 12
2.6~6.0 407 280 11
6.0~10 407        280 10
Die forgings     T6 L 431 294 19.6
LT 425 284 10.8

                                    Mechanical properties of stabilized treatment of 2A70  
Type Stabilized treatment Rm/Mpa Rp0.2/Mpa A/% Type Stabilized treatment Rm/Mpa Rp0.2/Mpa A/%
θ/℃ t/h θ/℃ t/h
Aluminum sheet 125 1000 363 324 9 Forgings sheet stock 175 100 333   8
5000 363 9 1000 333   9
10000 363 314 8 5000 314   9
20000 363 294 7 10000 304   8
150 100 402 343 20000 275   7
1000 412 363 5 30000 265   8
5000 382 333 6 195 100 314   10
10000 314 284 8 1000 284   10
20000 314 294 8 5000 275   12
175 10 402 343 6 10000 255   12
100 392 338 5 20000 245   12
1000 392 324 6 30000 245   12
200 10 412 353 5 Extrusion aluminum profile 125 100 402 373 7.5
100 373 314 6 1000 402 373 7.5
Forgings sheet stock 125 100 402 8 5000 392 358 7.5
1000 422 6 10000 384 343 7
5000 402 7 30000 384 333 8
10000 402 7 150 100 397 363 8
20000 373 7 1000 422 373 7
30000 373 6 5000 384 358 7
150 100 402 6 10000 343 343 8
1000 392 6 30000 314 333 8
5000 353 8 175 100 392 363 7.5
10000 353 8 1000 373 333 8
20000 314 7 Die forgings 130 100 412 343 12
30000 314 6 1000 412 343 12
150 10 412 333 11 10000 412 343 12
100 407 333 10 30000 373 16
1000 392 314 10 Die forgings 200 10 324 237 14
30000 314 4 100 284 226 17
175 10 363 314 11 1000 245 196 20
100 353 304 13 250 10 196 177 18
1000 333 255 15 100 177 118 20
3000 255 18 1000 127 88 25
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