4140 Bar Crwn Alloy
Ystod Gyflenwi
4140 Bar Rownd Dur: diamedr 8mm - 3000mm
4140 Plât Dur: trwch 10mm - 1500mm x lled 200mm - 3000mm
Sgwâr Gradd Dur 4140: 20mm - 500mm
Manylebau Dur Cyffredin 4140
Gwlad | UDA | Almaeneg | Prydeinig | Japan | China | Awstralia |
Safon | ASTM A29 | DIN 17200 | BS 970 | JIS G4105 | GB / T 3077 | UG 1444 |
Graddau | 4140 | 1.7225 / 42CRMO4 | 42CrMo4 | SCM440 | 42CrMo | 4140 |
Cyfansoddiad Cemegol Bar Crwn SAE 4140 Dur Carbon
Munud. % | Max% | ||||||||
Carbon | 0.36 | 0.44 | |||||||
Silicon | 0.10 | 0.40 | |||||||
Manganîs | 0.65 | 1.10 | |||||||
Cromiwm | 0.75 | 1.20 | |||||||
Molybdenwm | 0.15 | 0.35 | |||||||
Ffosfforws | 0 | 0.04 | |||||||
Sylffwr | 0 | 0.04 |
SAE 4140 Priodweddau Ffisegol Bar Crwn Dur Carbon
Priodweddau Ffisegol | Metrig | Ymerodrol |
Dwysedd | 7.85 g / cm3 | 0.284 pwys / in3 |
SAE 4140 Priodweddau Mecanyddol Bar Crwn Dur Carbon
Dynodiad Eiddo Mecanyddol | R. | S. | S. | * T. | U. | V. | W. | ||
Adran Dyfarniad Cyfyngedig mm | 250 | 250 | 150 | 100 | 63 | 30 | 20 | ||
Cryfder Tynnol Mpa | Munud | 700 | 770 | 770 | 850 | 930 | 1000 | 1080 | |
Max | 850 | 930 | 930 | 1000 | 1080 | 1150 | 1230 | ||
Mpa Straen Prawf 0.2% | Munud | 480 | 540 | 570 | 655 | 740 | 835 | 925 | |
Elongation ymlaen 5.65√S0% | Munud | 15 | 13 | 15 | 13 | 12 | 12 | 12 | |
Effaith Izod J. | Munud | 34 | 27 | 54 | 54 | 47 | 47 | 40 | |
Effaith Charpy J. | Munud | 28 | 22 | 50 | 50 | 42 | 42 | 35 | |
Caledwch Brinell HB | Munud | 201 | 233 | 233 | 248 | 269 | 293 | 311 | |
Max | 255 | 277 | 277 | 302 | 331 | 352 | 375 |