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ASTM A193 B7 Hex Bolt zuru ọkara na-eri B18.2.1

Flight flanges nwere ihu ọkpụrụkpụ nke flange, ụdị nke ihu, na usoro na-egbu egbu.

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Enwere ike ịkọwa nkọwapụta ihe maka ịbelata dị ka ASTM A182 GR. F12 CL.2. A na-ejikarị ọkwa alloy nke a na-ejikarị eme ihe bụ F12 CR 2. Na mgbakwunye, a na-eji ha emepụta ma ọ bụ ngwaahịa eji eme ihe, tumadi na ngwa okpomọkụ dị elu. Nkọwapụta ASTM A182 gụnyere ọtụtụ ihe achọrọ gụnyere ọtụtụ ihe, gụnyere usoro eji arụ ọrụ, ọgwụgwọ ọkụ, ihe mejupụtara kemịkalụ chọrọ. N'otu oge ahụ, alloy steel f12 flange nwekwara ike iguzogide ihe ngwọta Chloride na-etinye corrosion, crevice na nrụgide corrosion ike. N'ihi obere carbon dị ala, f12 nchara nchara flanges enweghị ihe ize ndụ nke intergranular corrosion mgbe ajụ ma ọ bụ ịgbado ọkụ.

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