ASTM A213 ASME SA312 SS 347

347 kila kuhiliʻole he columbium/tantalum stabilized austenitic chromium-nickel kila kuhiliʻole. Hoʻopaʻa ʻia kēia mea kūʻē i ka hoʻokumu ʻana i ka chromium carbide ma o ka hoʻohui ʻana i ka columbium a me ka tantalum. No ka mea, ʻoi aku ka ikaika o ka pilina o kēia mau mea no ke kalapona ma mua o ka chromium, ua hoʻoheheʻe ka columbium-tantalum carbide i loko o nā huaʻai ma mua o ka hana ʻana ma nā palena o ka palaoa. Pono e noʻonoʻo ʻia ka 347 no nā noi e koi ana i ka hoʻomehana ʻana ma waena o 800ºF (427ºC) a me 1650ºF (899ºC) a i ʻole no ka wili ʻana ma lalo o nā kūlana e pale ai i kahi anneal post-weld. 347 ʻaʻole magnetik.

Nā Pono Kino o SS347
ʻO ka mānoanoa(lb/cu. in.)	0.29
Kaumaha Kūikawā	8.03
Wela Kūikawā(Btu/lb/Deg F)	0.12
Palekana Uila (microhm-cm)	438
Lae hehee(Deg F)	2600

Ka Hui Kimia o SS347, %
Kalapona	≤0.08
Manganese	≤2.00
Phosphorus	≤0.045
Sulfur	≤0.030
Silika	≤0.75
Chromium	17.0-19.0
Nikela	9.0-13.0

Mea Mechanical o SS347

Paʻa Paʻa, min.		Ka ikaika hua, min.		ʻO ka lōʻihi	ʻoʻoleʻa
ksi	Mpa	ksi	Mpa	%	HBW	Rockwell
75	515	30	205	40	201	92HRBW