440 zanglamaydigan po'lat nima?

440 zanglamaydigan po'latdan yasalgan plastinkaning ekvivalent materiali

440A zanglamaydigan po'latdan:

Ekvivalent AISI 440A, ASTM A276, ASTM A314, ASTM A473, ASTM A580, ASTM A756, ASTM A580, AMS 5631, AMS 5632, AMS 5633, AMS 5634, AMS28S, AMS28, {0}-{101} SAE J405 (51440A)

Shunga o'xshash navlar: 7Cr17, 7Cr17MoV, X70CrMo15

440B zanglamaydigan po'latdan:

Ekvivalent AISI 440B, ASTM A276, ASTM A314, ASTM A473, ASTM A580, ASTM A756, ASTM A580, AMS 5631, AMS 5632, AMS 5633, AMS 5634, AMS28S, AMS28, {0}-{101} SAE J405 (51440B)

Shunga o'xshash navlar: 9Cr18, 9Cr18Mo, X90CrMoV18

440C zanglamaydigan po'latdan:

AISI 440C, ASTM A276, ASTM A314, ASTM A473, ASTM A580, ASTM A756, ASTM A580, AMS 5630, AMS 5880, MIL-S-862, SAE J140C (SAE J140C) ga ekvivalent

Shunga o'xshash navlar: 9Cr18MoV, X105CrMo17

440 zanglamaydigan po'latdan yasalgan plastinkaning kimyoviy tarkibi (%)

Baho	C	Si	Mn	S	P	Cr	Ni	Mo
440A	0.60~0.75	1 dan kichik yoki teng	1 dan kichik yoki teng	0,030 dan kam yoki unga teng	0,040 dan kam yoki unga teng	16.00-18.00	–	0,75 dan kam yoki unga teng
440B	0.85-0.95	1 dan kichik yoki teng	1 dan kichik yoki teng	0,030 dan kam yoki unga teng	0,035 dan kam yoki unga teng	16.00-18.00	0,60 dan kam yoki unga teng	0,75 dan kam yoki unga teng
440C	0.95 – 1.20	1 dan kichik yoki teng	1 dan kichik yoki teng	0,030 dan kam yoki unga teng	0,040 dan kam yoki unga teng	16.00-18.00	–	0,75 dan kam yoki unga teng

Mexanik xususiyatlar

Mulk	440A	440B	440C
Qattiqlik (Rokvell C)	56-59 HRC	57-60 HRC	58-62 HRC
Kuchlanish kuchi (MPa)	760-820	760-840	760-820
Kuchlanish kuchi (MPa)	450-600	450-600	450-600
Uzilish cho'zilishi (%)	20-25	15-20	10-15
Elastiklik moduli (GPa)	200	200	200

Jismoniy xususiyatlar

Mulk	440A	440B	440C
Zichlik (g/sm³)	7.65	7.75	7.75
Issiqlik o'tkazuvchanligi (Vt/m·K)	24	24	24
Maxsus issiqlik sig'imi (J/kg·K)	460	460	460
Elektr qarshiligi (mk·sm)	60	60	60
Issiqlik kengayish koeffitsienti (mkm / m · K)	10.4	10.4	10.4