ASTM A213 ASME SA312 SS 347

347 igwe anaghị agba nchara bụ a columbium / tantalum stabilized austenitic chromium-nickel igwe anaghị agba nchara. A na-eme ka ihe a guzosie ike megide nhazi chromium carbide site na mgbakwunye nke columbium na tantalum. Ebe ọ bụ na ihe ndị a nwere mmekọrịta siri ike maka carbon karịa chromium, columbium-tantalum carbides na-asọpụta n'ime ọka kama ịkpụ na oke ọka. Ekwesịrị ịtụle 347 maka ngwa chọrọ ikpo ọkụ na-adịte aka n'etiti 800ºF (427ºC) na 1650ºF (899ºC) ma ọ bụ maka ịgbado ọkụ n'okpuru ọnọdụ ndị na-egbochi anneal post-weld. 347 abụghị magnetik.

Njirimara anụ ahụ nke SS347
Njupụta(lb/cu. in.)	0.29
Nnukwu ike ndọda	8.03
Okpomọkụ akọwapụtara (Btu /lb/Deg F)	0.12
Mgbochi ọkụ eletrik (microhm-cm)	438
Ebe mgbaze (Deg F)	2600

Ihe mejupụtara kemịkalụ nke SS347,%
Carbon	≤0.08
Manganese	≤2.00
Phosphorus	≤0.045
sọlfọ	≤0.030
Silikoni	≤0.75
Chromium	17.0-19.0
Nickel	9.0-13.0

Njirimara akụrụngwa nke SS347

Ike ntakiri, min.		Ike Mpụta, min.		Ogologo oge	Isi ike
ksi	Mpa	ksi	Mpa	%	HBW	Rockwell
75	515	30	205	40	201	92HRBW