Ua hoʻokumu ʻo Womic Steel iā ia iho ma ke ʻano he mea hoʻolako hilinaʻi o nā mea kiʻekiʻe kiʻekiʻe a me nā hopena ma mua o 20 mau makahiki. Me ka hoʻokō ʻana i ka maikaʻi, mālama ka hui i kahi ākea o nā ʻoihana, e hāʻawi ana i nā hoʻonā kūpono e hoʻokō i nā pono kikoʻī. ʻO kā lākou waihona waiwai, ʻo ia hoʻi nā mea waiwai ASTM A335 P91 Type 2, loaʻa mai nā mea hana honua i ʻae ʻia a hoʻomau mau ʻia e hoʻokō i nā kūlana kiʻekiʻe. ʻO Womic Steel ka mea kūikawā i ka hāʻawi ʻana i nā mea P91 no nā noi ikaika kiʻekiʻe, me nā paipu, nā mea pono, nā valve, nā flanges, a me nā mea hou aku, e hōʻoiaʻiʻo ana i nā mea kūʻai aku i nā huahana maikaʻi loa.

Hiki ke hoʻolako ʻia nā Standards mai Womic Steel Group:

A335 Chrome Moly Paipu

A335 Paipu kila huila

A335 P5 Paipu kila

A335 P9 Paipu kila

A335 P11 Alloy Steel Paipu

A335 P12 Alloy Steel Paipu

A335 P22 Paipu kila

A335 P91 Alloy Steel Paipu

ʻO nā hiʻohiʻona nui o ASTM A335 P91 Type 2 paipu
ʻO ka ASTM A335 P91 Type 2 he kila kila chrome-moly i ʻike ʻia no kona ikaika kūʻokoʻa, kūpaʻa wela, a me ka ikaika kolo. Hoʻokaʻawale ʻia ʻo ia ma ke kila creep strength-enhanced ferritic (CSEF), i mea kūpono no nā noi kiʻekiʻe a me ke kaomi kiʻekiʻe. Loaʻa ka mea i kahi kaʻina hana wela kūikawā:

Hana maʻamau ma 1050 °C.

Hoʻolili ka ea i 200 °C.

Hoʻomāmā ma 760 °C.

Hoʻonui kēia kaʻina hana i kona ikaika kolo a me ka lōʻihi, e lilo ia i koho maikaʻi loa no nā kaiapuni koi.

Hoʻohui a me nā pono o ka ASTM A335 P91 Steel Tubes
Chromium (9%): Hoʻonui i ka ikaika o ka wela kiʻekiʻe, ka pale ʻana i ka oxidation, a me nā waiwai mechanical.

Molybdenum (1%): Hoʻomaikaʻi i ka elasticity, hoʻopaʻa ʻana i ke kūpaʻa, a me ka ikaika creep wela kiʻekiʻe.

ʻO Vanadium a me Columbium / Niobium: Hoʻonui hou i ka ikaika creep a me ke kūpaʻa luhi wela.

ʻO nā pono o ka ASTM A335 P91 Steel Tubes
Hoʻemi ʻia ka mānoanoa o ka pā: E ʻae i nā ʻāpana māmā, hoʻemi ʻia ka manawa wili, a me ka liʻiliʻi hoʻopiha metala.

ʻOi aku ka maikaʻi o ke ola luhi wela: A hiki i 10 mau manawa ʻoi aku ka maikaʻi ma mua o nā mea ma mua e like me T22 a i ʻole P22.

Hoʻonui i nā mahana hana: Hoʻonui i ka pono i nā noi wela kiʻekiʻe.

Nā noi o ASTM A335 P91 Steel Tubes
Hoʻohana nui ʻia ʻo P91 i nā ʻoihana e koi ana i nā mea hiki ke kū i nā wela a me nā koʻikoʻi. Loaʻa nā noi maʻamau:

Hoʻoulu mana: ʻO nā paila, nā laina hoʻomaʻamaʻa, a me nā mea kanu pōʻai hui.

ʻO nā mea kanu Petrochemical: ʻO nā mea hoʻomehana, nā mea hana kinoea, a me nā lawelawe ʻaila.

ʻŌnaehana paipu wela kiʻekiʻe: He kūpono no ke kuʻo ʻana, ka flanging, a me ka hana wili.

Hoʻohui Kimia o ASTM A335 P91 Paipu kila
ʻO ka hoʻohui kemika o P91 e hōʻoia i kāna hana ʻoi aku ka maikaʻi:

Kalapona: 0.08% – 0.12%

Manganese: 0.30% - 0.60%

Chromium: 8.00% – 9.50%

Molybdenum: 0.85% - 1.05%

Vanadium: 0.18% - 0.25%

Nitrogen: 0.030% – 0.070%

ʻO nā mea ʻē aʻe: Nickel, aluminika, columbium, titanium, a me ka zirconium i nā helu hoʻomalu.

Na Waiwai Mechanical
ʻO ka ikaika ʻo Tensile: 85,000 PSI liʻiliʻi loa (585 MPa).

Ka ikaika o ka hua: 60,000 PSI liʻiliʻi (415 MPa).

Hoʻopaʻa ʻia a me ka wela ASTM A335 P91 Piu kila
Pono ka welding P91 i ka pili pono i nā kaʻina hana e mālama i kāna mau waiwai:

Hoʻomaʻamaʻa mua: Pono e pale i ka haki ʻana i ka hydrogen.

Ka hoʻomalu wela waena: Mālama ʻia me ka hoʻohana ʻana i nā ʻōnaehana hoʻomehana induction hou.

Hoʻomaʻamaʻa wela ma hope o ka weld (PWHT): He mea koʻikoʻi e hoʻokō i ka microstructure makemake a pale i nā hemahema.

ʻO nā electrodes welding: Pono e hoʻohālikelike i ka haku ʻana o ka mea makua.

No ke aha e koho ai i ka Womic Steel ASTM A335 P91 Steel Tubes?
Ka waihona waiwai nui: Nā mea P91 kiʻekiʻe no kāu mau pono āpau.

ʻIke: ʻO ka hui ʻike e alakaʻi iā ʻoe ma ke koho ʻana i nā mea a me ka noi.

Hoʻoholo i ka maikaʻi: ʻO nā mea maikaʻi wale nō mai nā mea hana i ʻae ʻia.

No kāu mau koi ASTM A335 P91 Type 2, e kelepona iā Womic Steel i kēia lā. Mākaukau kā lākou hui e hāʻawi i nā hoʻonā i ʻoi aku ma mua o kou mau manaʻo a hāʻawi i nā mea waiwai kiʻekiʻe loa no kāu mau papahana.