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20CrMo cho woule fèy asye
20CrMo cho woule fèy asye
20CrMo cho woule fèy asye
20CrMo cho woule fèy asye

20CrMo cho woule fèy asye

20crmo Alloy Steel Bar se lajman ki itilize pou fabrike tib presyon ak Fastener ki se mwayen ki pa koroziv, mwayen nitwojèn idwojèn ak travay anba 250 ° C, tankou vane, deflektè, fòje ak woule seksyon nan turbine ak chodyè, pati enpòtan carburing an komen. machin.
Entwodiksyon pwodwi
ba asye wonn yo lajman ki itilize nan fè machin, fè otomobil, tren, machin m ', machin petoleum, machin agrikòl ak arktectue sivil tankou tout kalite arbr, vis, branch bwa, zouti pyès ki nan konpitè, angrenaj, pati estanda, kle Fastener, estriktirèl. pati pou machin otomobil ak agrikòl, manch ekstèn ak anndan, woulèt ak boul pou fè portant.
GB 20CrMo asye se yon kalite asye alyaj Chinwa pou objektif jeni ak estrikti mekanik, ki jeneralman yo itilize nan trempe oswa trempe oswa karburize ak trempe. Materyèl 20CrMo gen gwo fòs chalè, bon hardenability, pa gen brittleness tanperaman, plastisit souch frèt, bon machinability ak soudabilite.
Done teknik
20crmo Alloy Steel Bar konpozisyon chimik
Klas C Si Mn 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
Pwopriyete mekanik:
Fòs rupture
σb (MPa)
Sede fòs
σs 0.2 (MPa)
Elongasyon
δ 5 (%)
Rediksyon nan zòn crosssection
ψ (%)
Travay balistik
Akv (J)
Pounding valè severite
αkv (J/cm2)
Dite (HB) Gwosè espesimèn
Min 835 Min 540 Min 10 Min 40 Min 47 Min 59 Maksimòm 179 15mm
Aplikasyon

20CrMo alyaj asye yo itilize nan envantè de medya ki pa korozivite nan ekipman chimik ak tiyo segondè presyon, Fastener, turbin vapè, lam chofaj ak forgings ak tanperati k ap travay anba a 250 °C, ak pati enpòtan karburize tankou angrenaj ak arbr nan machin jeneral. . Li kapab tou itilize nan plas asye 1Cr13 pou fabrike presyon mwayen, turbin vapè presyon ki ba nan zòn presyon vapè sipè chofe lam k ap travay.

Espesifikasyon Tretman Chalè

  • Premye tanperati chofaj trempe: 880 °C (ajan trempe: dlo, lwil oliv)
  • Tanperati chofaj tanperati: 500 °C (ajan - dlo, lwil oliv)

Klas ekivalan

20CrMo materyèl ekivalan a US ASTM, Ewopeyen Almay DIN EN, Britanik BS EN, Frans NF EN, Japonè JIS, ak ISO estanda. (Pou referans)

20CrMo ekivalan asye
Lachin USA Almay Japon Lafrans UK ISO
Estanda Klas Estanda Klas Estanda Klas (Nimewo Steel) Estanda Klas Estanda Klas (Nimewo Steel) Estanda Klas (Nimewo Steel) Estanda Klas
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 Pati 1
25CrMo4 (1.7218),
708M20
ISO 683-1 18CrMo4
Pwodwi ki gen rapò
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AISI 8620 Steel
EN 34CrNiMo6 Steel
DIN 30CrNiMo8 asye
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