Wane abu ne P235GH? Wane abu ne ya dace da shi a China?

P235GH bututu ne mai ƙarfi da ƙarfin aiki mai zafi, wanda aka yi da ƙarfe mai ƙarfi na Jamus. P235GH, EN10216-2 bututun ƙarfe mara ƙarfi mai ƙarfi ya yi daidai da daidaitaccen ma'aunin ƙasa na 20G, 20MnG (Bututun ƙarfe mara ƙarfi na GB 5310-2008 mai ƙarfi).

Bututun ƙarfe mai kauri na P235GH galibi ana narkar da shi a cikin tanderun lantarki da kuma na'urar canza iskar oxygen. Don buƙatu masu yawa, yana amfani da tacewa a wajen tanderun, narkewar tanderun injin ko narkar da injin sau biyu, sake narkar da wutar lantarki ko na'urar tsabtace iska, da kuma maganin zafi.

Bututun ƙarfe mai ƙarfi P235GH, EN10216-2 ya dace da kera tasoshin matsin lamba da kayan aiki. Idan aka kwatanta da ƙarfe na yau da kullun, ƙarfen ƙarfe na P235GH yana da ƙarfi da tauri mafi girma, aikin lanƙwasa sanyi da aikin walda, halayen sinadarai, dacewar halitta, halayen jiki da aikin sarrafawa.

Kayan aikin injiniya na bututun ƙarfe na ƙarfe na P235GH: ƙarfin tensile σb350~480 MPa; ƙarfin yawan amfanin ƙasa σs≥215 MPa; tsawaita δ5≥ 25%; kuzarin shaye-shaye na tasiri Akv≥47 J; Taurin Brinell ≤105~140 HB100

Sinadarin sinadarai (ƙashi mai yawa,%) na bututun ƙarfe na ƙarfe na P235GH: ≤0.16 Si; 0.60~1.20 Mn; ≤0.025 Cr; ≤0.30 Ni; ≤0.30 Cu; ≤0.08 Mo; ≤0.02 V; ≤0.02 Nb; ≤0.012 N; P; ≤0.010 S; ≤0.30, ≤0.020 Al; C; ≤0.35, ≤0.03 Ti.