20CrMo wela owili pepa kila

Ua hoʻohana nui ʻia nā pahu kila i ka hana ʻana i nā mīkini, ka hana autombile, ke kaʻaahi, nā mīkini koʻu, nā mīkini petoleum, nā mīkini mahiʻai a me nā hale kiʻi kīwila e like me nā ʻano ʻano like ʻole, nā ʻoki, nā koʻokoʻo hoʻohui, nā mea paahana, nā ʻāpana, nā ʻāpana maʻamau, nā spanners fasteners, structural. nā ʻāpana no ke kaʻa a me nā mīkini mahiʻai, nā lima lima o waho a me loko, nā wili a me nā pōpō no ka hana ʻana.
ʻO ke kila GB 20CrMo he ʻano kila kila Kina no ka ʻenekinia a me ke kumu hoʻolālā mechanical, i hoʻohana mau ʻia i ka quenching a i ʻole tempering a carburizing a quenching. 20CrMo mea he kiʻekiʻe wela ka ikaika, hardenability maikaʻi, ʻaʻohe huhū brittleness, ke anu anuanu plasticity, maikaʻi machinability a weldability.

20crmo Alloy Steel Bar Chemical Composition

Papa	C	ʻO Si	ʻO Mn	P	S	Cr	Mo
20CrMo	0.17-0.24	0.17-0.37	0.40-0.70	≤0.030	≤0.030	0.80-1.10	0.15-0.25

Waiwai Mechanical:

Ka ikaika tensile σb (MPa)	Hua ikaika σs 0.2 (MPa)	ʻO ka lōʻihi δ 5 (%)	Hoemi i ka wahi crosssection ψ (%)	ʻO ka hana ballistic Akv (J)	Ke kuʻi ʻana i ka waiwai αkv (J/cm2)	Paʻakiki (HB)	Lahi Hoʻohālike
Min 835	Min 540	Min 10	Min 40	Min 47	Min 59	Max 179	15mm

Nā noi

Hoʻohana ʻia ke kila kila 20CrMo i ka hana ʻana i nā media non-corrosive i nā mea kemika a me nā paipu puʻuwai kiʻekiʻe, nā mea hoʻopaʻa, nā turbines mokuahi, nā ʻūhā paila a me nā forgings me ka mahana hana ma lalo o 250 ° C, a me nā ʻāpana carburizing koʻikoʻi e like me nā gears a me nā shafts i nā mīkini maʻamau . Hiki ke hoʻohana ʻia ma kahi o ke kila 1Cr13 e hana ai i ke kaomi maʻamau, nā turbines haʻahaʻa haʻahaʻa haʻahaʻa i ka superheated steam zone pressure stage working blades.

Hōʻike Hoʻomaʻamaʻa Wela

• ʻO ka mahana wela hoʻoheheʻe mua: 880 °C (Agent quenching: wai, ʻaila)
• ʻO ka mahana wela hoʻomehana: 500 °C (mea hana - wai, ʻaila)

Papa Kaulike

20CrMo mea like me US ASTM, ʻEulopa Kelemānia DIN EN, Pelekania BS EN, Palani NF EN, Japanese JIS, a me ka maʻamau ISO. (No ke kuhikuhi)

20CrMo kila like

Kina

USA

Kelemānia

Iapana

Palani

UK

ISO

Kūlana

Papa

Kūlana

Papa

Kūlana

Papa (Helu hao)

Kūlana

Papa

Kūlana

Papa (Helu hao)

Kūlana

Papa (Helu hao)

Kūlana

Papa

GB/T 3077

20CrMo

AISI SAE; ASTM A29/A29M

4120

DIN EN 10083-3

25CrMo4 (1.7218)

JIS G4053

SCM420

NF EN 10083-3, NF A35-551

25CrMo4 (1.7218), 18CD4

BS EN 10083-3, BS 970 Mahele 1

25CrMo4 (1.7218), 708M20

ISO 683-1

18CrMo4