20CrMo inopisa yakakungurutswa simbi pepa

simbi dzakatenderedza mabara dzinoshandiswa zvakanyanya mukugadzira muchina, autombile kugadzira, njanji, muchina wemugodhi, petoleum machinry, michina yekurima uye civil archtectue senge marudzi ese emashafts, screws, tsvimbo dzekubatanidza, maturusi ehardware, magiya, zvikamu zvakajairwa, spanners fasteners, zvimiro. zvikamu zvemotokari uye zvekurima michina, ekunze nemukati mawoko, rollers nemabhora ekugadzira.
GB 20CrMo simbi irudzi rweChinese alloy simbi yeinjiniya uye magadzirirwo emuchina, ayo anowanzo shandiswa mukudzima kana kudziyisa kana kuviga uye kudzimura. 20CrMo zvinhu zvine simba rekupisa kwakanyanya, kunaka kuomarara, hapana kushatirwa, kutonhora kwepurasitiki, machinability uye weldability.

20crmo Alloy Steel Bar Chemical Composition

Giredhi	C	Si	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

Mechanical Property:

Kusimba simba σb (MPa)	Goho Simba σs 0.2 (MPa)	Elongation δ 5 (%)	Kuderedzwa kwenzvimbo yekuyambuka ψ (%)	Ballistic basa Akv (J)	Pounding toughness value αkv (J/cm2)	Kuoma (HB)	Saizi yemuenzaniso
Min 835	Min 540	Min 10	Min 40	Min 47	Min 59	Kupfuura 179	15mm

Applications

20CrMo alloy simbi inoshandiswa mukugadzira isiri-corrosive media mumakemikari emidziyo uye mapombi akakwira, zvisungo, turbines, boiler blades uye forgings ane tembiricha yekushanda iri pasi pe250 ° C, uye akakosha ekuisa carburizing senge magiya uye shaft mumakina akajairwa. . Inogona zvakare kushandiswa panzvimbo ye1Cr13 simbi kugadzira yepakati kudzvanywa, yakaderera kumanikidza chiutsi turbines mune superheated steam zone pressure stage inoshanda mashizha.

Heat Treatment Specification

• Chekutanga kudzima tembiricha yekudziya: 880 °C (Kudzima mumiririri: mvura, mafuta)
• Kupisa kupisa tembiricha: 500 °C (mumiririri - mvura, mafuta)

Equivalent MaGrade

20CrMo zvinhu zvakaenzana neUS ASTM, European Germany DIN EN, British BS EN, France NF EN, Japanese JIS, uye ISO standard. (Kureva)

20CrMo simbi yakaenzana

China

USA

Jerimani

Japani

Furanzi

UK

ISO

Standard

Giredhi

Standard

Giredhi

Standard

Giredhi (Nhamba yesimbi)

Standard

Giredhi

Standard

Giredhi (Nhamba yesimbi)

Standard

Giredhi (Nhamba yesimbi)

Standard

Giredhi

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 Chikamu chekutanga

25CrMo4 (1.7218), 708M20

ISO 683-1

18CrMo4