He aha ka mea ʻo P235GH? He aha ka mea e kūlike ai ma Kina?

He paipu kila Fihekin a me ke kopa hana wela kiʻekiʻe ʻo P235GH, he kila kūkulu wela kiʻekiʻe Kelemania ia. ʻO ka paipu kila humuhumu kaomi P235GH, EN10216-2 e kūlike ana me ke kūlana aupuni 20G, 20MnG (GB 5310-2008 paipu kila humuhumu paila kaomi kiʻekiʻe).

Hoʻoheheʻe pinepine ʻia ka paipu kila kila P235GH i loko o ka umu arc uila a me ka mea hoʻololi oxygen top-blown. No nā koi kiʻekiʻe, hoʻohana ia i ka hoʻomaʻemaʻe ʻana ma waho o ka umu, ka hoʻoheheʻe ʻana i ka umu hoʻokomo vacuum a i ʻole ka hoʻoheheʻe ʻana i ka vacuum pālua, ka electroslag remelting a i ʻole ka mālama ʻana i ka vacuum, a me ka mālama wela.

He kūpono ka paipu kila humuhumu kaomi P235GH, EN10216-2 no ka hana ʻana i nā kīʻaha kaomi a me nā ʻāpana lako. Ke hoʻohālikelike ʻia me ke kila maʻamau, ʻoi aku ka ikaika a me ka paʻakikī o ke kila hui P235GH, ka hana kulou anu a me ka hana kuʻihao, nā waiwai kemika, biocompatibility, nā waiwai kino a me ka hana hana.

Nā waiwai mechanical o ka paipu kila P235GH: ikaika tensile σb350 ~ 480 MPa; ikaika hua σs≥215 MPa; elongation δ5≥ 25%; ikehu omo hopena Akv≥47 J; paʻakikī Brinell ≤105 ~ 140 HB100

Ka haku mele kemika (hapa nuipa, %) o ka paipu kila 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.