He aha ka P235GH? He aha ka mea e pili ana i Kina?

ʻO P235GH kahi hana wela kiʻekiʻe Fihekin a me ka paipu kila kila, ʻo ia ke kila kila kiʻekiʻe German. P235GH, EN10216-2 puʻe seamless kila paipu me ka national standard 20G, 20MnG (GB 5310-2008 high-pressure boiler seamless steel pipe).

Hoʻohehe ʻia ʻo P235GH alloy steel pipe seamless pipe i loko o ka umu ahi arc a me ka oxygen top-blown converter. No nā koi kiʻekiʻe, hoʻohana ia i ka hoʻomaʻemaʻe ʻana ma waho o ka umu, ka hoʻoheheʻe ʻana i ka umu hoʻoheheʻe a i ʻole ka hoʻoheheʻe ʻana i ka lua, ka electroslag remelting a i ʻole ka hoʻomaʻamaʻa ʻana, a me ka mālama wela.

P235GH, EN10216-2 puʻe paipu kila maʻemaʻe kūpono no ka hana ʻana i nā moku kaomi a me nā mea pono. Ke hoʻohālikelike ʻia me ke kila maʻamau, ʻoi aku ka ikaika a me ka paʻakikī o ke kila kila P235GH, ka hana kuʻi anuanu a me ka hana kuʻi ʻana, nā waiwai kemika, biocompatibility, nā waiwai kino a me ka hana kaʻina.

Mechanical waiwai o P235GH alloy kila paipu: tensile ikaika σb350~480 MPa; ikaika hua σs≥215 MPa; elongation δ5≥ 25%; ikehu absorption hopena Akv≥47 J; Brinell paakiki ≤105~140 HB100

ʻO ka hoʻohui ʻana i nā kemika (haʻina nui, %) o P235GH paipu kila kila: ≤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.