440C ibyuma bitagira umuyonganigicuruzwa cyiza cyane kitagira ibyuma bizwiho guhuza bidasanzwe no kurwanya ruswa.Ni iyumuryango wa martensitike idafite ibyuma kandi ikoreshwa cyane mubikorwa bitandukanye kugirango ikore neza.
Igipimo cya 440C Icyuma kitagira umuyonga hamwe nicyiciro kingana nicyuma
| Igihugu | Amerika | BS & DIN | Ubuyapani |
| Bisanzwe | ASTM A276 | EN 10088 | JIS G4303 |
| Impamyabumenyi | S44004 / 440C | X105CrMo17 / 1.4125 | SUS440C |
ASTM A276 440C Ibyuma bya Shimi Ibigize kandi bihwanye
| Bisanzwe | Icyiciro | C | Mn | P | S | Si | Cr | Mo |
| ASTM A276 | S44004 / 440C | 0.95-1.20 | ≦ 1.00 | ≦ 0.04 | ≦ 0.03 | ≦ 1.00 | 16.0-18.0 | ≦ 0,75 |
| EN10088 | X105CrMo17 / 1.4125 | 0.95-1.20 | ≦ 1.00 | ≦ 0.04 | ≦ 0.03 | ≦ 1.00 | 16.0-18.0 | 0.40-0.80 |
| JIS G4303 | SUS 440C | 0.95-1.20 | ≦ 1.00 | ≦ 0.04 | ≦ 0.03 | ≦ 1.00 | 16.0-18.0 | ≦ 0,75 |
440C IcyumaUmukanishiIbyiza
| Ubushyuhe Ubushyuhe (° C) | Imbaraga za Tensile (MPa) | Imbaraga Zitanga 0.2% Icyemezo (MPa) | Kurambura (% muri 50mm) | Gukomera Rockwell (HRC) | Ingaruka Charpy V (J) |
| Annealed * | 758 | 448 | 14 | 269HB max # | - |
| 204 | 2030 | 1900 | 4 | 59 | 9 |
| 260 | 1960 | 1830 | 4 | 57 | 9 |
| 306 | 1860 | 1740 | 4 | 56 | 9 |
| 371 | 1790 | 1660 | 4 | 56 | 9 |
Hano hari ingingo zingenzi zo kumenyekanisha 440C ibyuma bitagira ibyuma:
1. Ibigize: 440C ibyuma bitagira umuyonga bigizwe ahanini na chromium (16-18%), karubone (0,95-1.20%), hamwe nibindi bintu bike nka manganese, silikoni, na molybdenum.
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3. Kurwanya ruswa: Nubwo ari ibyuma byinshi bya karuboni idafite ibyuma, 440C yerekana kurwanya ruswa.
4. Gukomera n'imbaraga: 440C ibyuma bitagira umuyonga ibyuma bifite ubukana buhebuje n'imbaraga nyinshi, bitanga kuramba no kuramba mubisabwa.
Igihe cyo kohereza: Jul-05-2023