38Õ2Í2ÌÀ (áûâø. 38ÕÍÌÀ) - Ñòàëü êîíñòðóêöèîííàÿ ëåãèðîâàííàÿ
Çàìåíà: 38Õ2Í2ÂÀ
Ïðèìåíåíèå:
Âàëû, øàòóíû, áîëòû, øïèëüêè è äðóãèå êðóïíûå îñîáî îòâåòñòâåííûå òÿæåëîíàãðóæåííûå äåòàëè ñëîæíîé êîíôèãóðàöèè, ïðèìåíÿåìûå â óëó÷øåííîì ñîñòîÿíèè.
Õèìè÷åñêèé ñîñòàâ â % ìàòåðèàëà 38Õ2Í2ÌÀ
C | Si | Mn | Ni | S | P | Cr | Mo | Cu |
0.33 - 0.4 | 0.17 - 0.37 | 0.25 - 0.5 | 1.3 - 1.7 | äî 0.025 | äî 0.025 | 1.3 - 1.7 | 0.2 - 0.3 | äî 0.3 |
Òåìïåðàòóðà êðèòè÷åñêèõ òî÷åê ìàòåðèàëà 38Õ2Í2ÌÀ.
Ac1 = 753 , Ac3(Acm) = 790 , Ar3(Arcm) = 490 , Ar1 = 370 , Mn = 320 |
Òåõíîëîãè÷åñêèå ñâîéñòâà ìàòåðèàëà 38Õ2Í2ÌÀ
Ñâàðèâàåìîñòü: | íå ïðèìåíÿåòñÿ äëÿ ñâàðíûõ êîíñòðóêöèé. |
Ôëîêåíî÷óâñòâèòåëüíîñòü: | ÷óâñòâèòåëüíà. |
Ñêëîííîñòü ê îòïóñêíîé õðóïêîñòè: | íå ñêëîííà. |
Ìåõàíè÷åñêèå ñâîéñòâà ïðè Ò=20 o Ñ ìàòåðèàëà 38Õ2Í2ÌÀ
Ñîðòàìåíò | Ðàçìåð | Íàïð. | sâ | sT | d5 | y | KCU | Òåðìîîáð. |
- | ìì | - | ÌÏà | ÌÏà | % | % | êÄæ / ì2 | - |
Ïðóòîê, ÃÎÑÒ 4543-71 | O 25 | 1080 | 930 | 12 | 50 | 780 | Çàêàëêà è îòïóñê |
Òâåðäîñòü 38Õ2Í2ÌÀ ïîñëå îòæèãà , ÃÎÑÒ 4543-71 | HB 10 -1 = 269 ÌÏà |
Ôèçè÷åñêèå ñâîéñòâà ìàòåðèàëà 38Õ2Í2ÌÀ
T | E 10- 5 | a 10 6 | l | r | C | R 10 9 |
Ãðàä | ÌÏà | 1/Ãðàä | Âò/(ì·ãðàä) | êã/ì3 | Äæ/(êã·ãðàä) | Îì·ì |
20 | 2.13 | 38 | 322 | |||
100 | 2.06 | 11.9 | 37 | 490 | 398 | |
200 | 1.94 | 12.5 | 35 | 502 | 482 | |
300 | 1.8 | 13.1 | 35 | 523 | 592 | |
400 | 1.74 | 13.3 | 33 | 532 | 740 | |
500 | 1.64 | 13.8 | 32 | 565 | 910 | |
600 | 1.57 | 14.1 | 30 | 590 | 1090 | |
700 | 1.41 | 14.6 | 28 | 615 | 1300 | |
800 | 1.29 | 11.8 | 28 | 670 | ||
T | E 10- 5 | a 10 6 | l | r | C | R 10 9 |
Çàðóáåæíûå àíàëîãè ìàòåðèàëà 38Õ2Í2ÌÀ
ÑØÀ | Ãåðìàíèÿ | ßïîíèÿ | Ôðàíöèÿ | Àíãëèÿ | Åâðîñîþç | Èòàëèÿ | Áåëüãèÿ | Èñïàíèÿ | Øâåöèÿ | Áîëãàðèÿ | Âåíãðèÿ | Ïîëüøà | Ðóìûíèÿ | ×åõèÿ | Àâñòðèÿ | Þæ.Êîðåÿ |
- | DIN,WNr | JIS | AFNOR | BS | EN | UNI | NBN | UNE | SS | BDS | MSZ | PN | STAS | CSN | ONORM | KS |
4330, 4337, 4340, G43376, G43400, G43499 | 1.6582, 34CrNiMo6, 35CrNiMo6, GS-34CrNiMo6 | SNCM447 | 34CrNiMo6, 34CrNiMo8, 35CND6 | 34CrNiMo6, 816M40, 817M40 | 1.6582, 34CrNiMo6, 35CrNiMo6KD | 34CrNiMo6, 35CrNiMo6, 35NiCrMo6KB | 35CrNiMo6 | 34CrNiMo6, 40NiCrMo7, F.1272 | 2541 | 34CrNiMo6 | 34CrNiMo6 | 34HNM | 34MoCrNi15, 34MoCrNi15q, 34MoCrNi16, 34MoCrNi16q | 16343 | BOHLERV155 | SNCM447 |
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