Core Chemical Composition System
Base Carbon Cov ntsiab lus: Cov ntsiab lus carbon yog tswj nyob rau hauv 0.3% - 0.6% ntau yam kom sib npaug hardness, hnav tsis kam, thiab tawv, thaum tsis txhob brittleness los ntawm cov pa roj carbon ntau.
Cov ntsiab lus tseem ceeb Alloying:
Chromium (Cr): 4.75% -12.0%; txhim khu oxidation kuj thiab hardenability (xws li, H13 feem ntau muaj 4.75%–5.50% Cr).
Molybdenum (Mo): 1.10% -3.50%; inhibits temper brittleness thiab txhim kho siab - kub lub zog.
Vanadium (V): 0.30% -2.50%; refines grain qauv thiab txo qhov nyiam ntawm thermal qaug zog tawg.
Cov Khoom Pab Txhawb: Silicon (Si) Tsawg dua lossis sib npaug li 1.0% txhim kho deoxidation; Nickel (Ni) Tsawg dua lossis sib npaug li 0.30% txhim kho matrix toughness; Tungsten (W) txhim kho liab hardness.
Cov yam ntxwv ntawm cov khoom ntawm Mainstream Commercial Qib
H13 (4Cr5MoSiV1): Cov khoom sib npaug uas muaj 5% Cr, 1% Mo, thiab 1% V; Nws tuav lub hardness saum HRC 45 ntawm 600 degree. Nws yog ib qho kev xaiv rau kev tuag casting thiab kub forging daim ntaub ntawv. Suzhou Changyuhe H13 kub-ua haujlwm tuag steel yog muaj nyob rau hauv kev ua lag luam, nrog tus nqi pib ntawm 5.80 Yuan.
DIEVAR: Lub siab - cov khoom ua tau zoo tsim nrog cov ntsiab lus siab Molybdenum (2.1%); nws muaj superior thermal cracking kuj piv rau H13, nrog rau zoo heev toughness, thermal zog, thiab ductility. Suzhou Changshuo DIEVAR kub- ua haujlwm tuag steel yog tus nqi ntawm 12.00 Yuan / kg.
5CrMnMo: Cov khoom siv qis- alloy nrog 0.50% -0.60% cov ntsiab lus carbon; nws siv Manganese los hloov Nickel rau optimized hardenability thiab yog haum rau me me - mus rau - nruab nrab rauj forging tuag thiab kub trimming tuag.
SKD61: Raws li lub teb chaws tus qauv 4Cr5MoSiV1; refined los ntawm lub tshuab nqus tsev degassing, nws ua tiav hardness ntawm 56-58 HRC tom qab quenching thiab yog dav siv nyob rau hauv txhuas thiab zinc alloy tuag casting. 3Cr2W8V: A siab- tungsten (8%) qib muab zoo heev siab -kub kuj tab sis kuj tsis zoo toughness; tam sim no nws tau maj mam hloov los ntawm cov qib tshiab.
