20CrMo letlapa la tšepe le chesang

litšepe tse pota-potileng li sebelisoa haholo ho etsa mechini, ho etsa li-autombile, seporo, mechini ea morafo, mochini oa petoleum, metjhini ea temo le meaho ea sechaba joalo ka mefuta eohle ea li-shafts, li-screw, lithupa tse hokelang, lisebelisoa tsa hardware, likere, likarolo tse tloaelehileng, li-spanners fasteners, moralo. likarolo tsa mechini ea makoloi le ea temo, matsoho a ka ntle le a kahare, lirolara le libolo bakeng sa ho beleha.
GB 20CrMo steel ke mofuta wa tshepe ya alloy ya China bakeng sa boenjineri le morero wa sebopeho sa motjhini, seo hangata se sebedisetswang ho tima kapa ho futhumatsa kapa ho kenya carburizing le ho tima. Thepa ea 20CrMo e na le matla a phahameng a mocheso, ho thatafala hantle, ha ho na bohale bo bobebe, polasetiki e batang e batang, machinability e ntle le ho cheseha.

20crmo Alloy Steel Bar Chemical Composition

Kereiti	C	Si	Mong	P	S	Kr	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

Thepa ea Mechini:

Matla a tšepe σb (MPa)	Kotulo Matla σs 0.2 (MPa)	Elongation δ 5 (%)	Phokotso ea sebaka sa crosssection ψ (%)	Mosebetsi oa Ballistic Akv (J)	Boleng ba ho toughness αkv (J/cm2)	Ho thatafala (HB)	Boholo ba Mohlala
Min 835	Min 540	Mets 10	Mets 40	Min 47	Min 59	Boholo ba 179	15 limilimithara

Lisebelisoa

20CrMo alloy steel e sebelisoa ha ho etsoa mecha ea litaba e sa senyeheng ka lisebelisoa tsa lik'hemik'hale le liphaephe tse phahameng tsa khatello, li-fasteners, li-turbine tsa mouoane, li-boiler blades le forgings tse nang le mocheso o sebetsang o ka tlase ho 250 ° C, le likarolo tsa bohlokoa tsa carburizing tse kang likere le shafts ka mechine e akaretsang. . E ka boela ea sebelisoa sebakeng sa tšepe ea 1Cr13 ho etsa khatello e mahareng, li-turbine tsa mouoane o tlase sebakeng se matla sa khatello ea mouoane.

Tlhaloso ea Phekolo ea Mocheso

• Mocheso oa pele oa ho tima mocheso: 880 °C (Setsi sa ho tima: metsi, oli)
• Mocheso o futhumatsang oa ho futhumatsa: 500 ° C (ente - metsi, oli)

Mephato e lekanang

20CrMo thepa e lekanang le US ASTM, Europe Germany DIN EN, British BS EN, France NF EN, Japanese JIS, le ISO standard. (Bakeng sa litšupiso)

20CrMo tšepe e lekanang

China

usa

Jeremane

Japane

Fora

UK

ISO

Standard

Kereiti

Standard

Kereiti

Standard

Kereiti (Nomoro ea tšepe)

Standard

Kereiti

Standard

Kereiti (Nomoro ea tšepe)

Standard

Kereiti (Nomoro ea tšepe)

Standard

Kereiti

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 Karolo ea 1

25CrMo4 (1.7218), 708M20

ISO 683-1

18CrMo4