Ko te ASTM A335 P92 (ASME SA335 P92) he paipa maitai koranu ferritic tuikore i hangaia mō te mahi pāmahana teitei.Ko te tohu UNS ko K92460.
Ko te P92 he maitai koranu martensitic ātete-wera nui-chromium kei roto ko te 8.50–9.50% chromium, ā, he mea koranu ki te Mo, W, V, me te Nb, e whakarato ana i te kaha ngoki pāmahana teitei, te ātete waikura, me te ātete ngenge wera.
E whakamahia whānuitia ana i roto i ngā raina mamaoa matua, i ngā raina mamaoa whakamahana anō, i ngā ngongo whakamahana nui me ngā ngongo whakamahana anō o ngā kohua hiko tino arohaehae me ngā kohua hiko tino arohaehae, tae atu ki ngā paipa tukatuka pāmahana teitei, pēhanga teitei me ngā wāhanga pupuri pēhanga nui i roto i ngā whare hinu me ngā whare whakamahine.
He kaihokohoko paipa rino koranu ngaio, pono hoki a Botop Steel, ā, ka taea e ia te tuku tere i ō kaupapa ki ngā momo paipa rino koranu, tae atu kiP5 (K41545), P9 (K90941), P11 (K11597), P12 (K11562), P22 (K21590), meP91 (K90901).
He pono te kounga o ā mātou hua, he utu whakataetae, ā, e tautoko ana i ngā tirotiro a te hunga tuatoru.
| Te Hanganga Matū, % | |||
| C | 0.07 ~ 0.13 | N | 0.03 ~ 0.07 |
| Mn | 0.30 ~ 0.60 | Ni | 0.40 mōrahi |
| P | 0.020 mōrahi | Al | 0.02 mōrahi |
| S | 0.010 mōrahi | Nb | 0.04 ~ 0.09 |
| Si | 0.50 mōrahi | W | 1.5 ~ 2.0 |
| Cr | 8.50 ~ 9.50 | B | 0.001 ~ 0.006 |
| Mo | 0.30 ~ 0.60 | Ti | 0.01 mōrahi |
| V | 0.15 ~ 0.25 | Zr | 0.01 mōrahi |
He ingoa rerekē ngā kupu Nb (Niobium) me Cb (Columbium) mō te huānga kotahi.
Ngā Āhuatanga Kume
| Tau | Ngā Āhuatanga Kume | ||
| Kaha Kume | Te Kaha o te Hua | Te whakaroa | |
| ASTM A335 P92 | 90 ksi [620 MPa] min | 64 ksi [440 MPa] min | 20 % min (Roa) |
E whakamārama ana a ASTM A335 i ngā uara roa iti rawa kua tatauhia mō te P92 mō ia hekenga 1/32 inihi [0.8 mm] o te matotoru o te pakitara.
| Matotoru o te Pakitara | P92 Te toronga i roto i te 2 inihi, 50 mm rānei | |
| in | mm | Roa |
| 0.312 | 8 | 20% meneti |
| 0.281 | 7.2 | 19% meneti |
| 0.250 | 6.4 | 18% meneti |
| 0.219 | 5.6 | 17% meneti |
| 0.188 | 4.8 | 16% meneti |
| 0.156 | 4 | 15% meneti |
| 0.125 | 3.2 | 14% meneti |
| 0.094 | 2.4 | 13% meneti |
| 0.062 | 1.6 | 12% meneti |
Ina kei waenganui i ngā uara e rua i runga ake nei te matotoru o te pakitara, ka whakatauhia te uara roa iti rawa mā te tātai e whai ake nei:
E = 32t + 10.00 [E = 1.25t + 10.00]
Kei hea:
E = te roa i roto i te 2 inihi, 50 mm rānei, %, me
t = te matotoru tuturu o ngā tauira, inihi [mm].
Ngā Whakaritenga Pakari
| Tau | Ngā Āhuatanga Kume | ||
| Brinell | Vickers | Rockwell | |
| ASTM A335 P92 | 250 HBW mōrahi | 265 HV mōrahi | 25 HRC mōrahi |
Mō ngā paipa he matotoru pakitara 0.200 inihi [5.1 mm] neke atu rānei, me whakamahi te whakamātautau pakeke Brinell, Rockwell rānei.
Me whakahaere te whakamātautau pakeke o Vickers i runga anō i te Tikanga Whakamātautau E92.
Whakamātautau Whakapapatahi
Me whakahaere ngā whakamātautau ki ngā tauira i tangohia mai i tetahi pito o te paipa kia rite ki ngā whakaritenga o te Wāhanga 20 o ASTM A999.
Whakamātautau Piko
Mō ngā paipa he nui ake te whānui o te NPS 25, ā, he 7.0, iti iho rānei te ōwehenga o te whānui ki te matotoru o te pakitara, me whakamātautau piko, kaua ki te whakamātautau papatahi.
Me whakapiko ngā tauira whakamātautau piko i te pāmahana rūma tae noa ki te 180°, me te kore e ngatata te taha waho o te wāhanga kua piko.
Kaihanga me te Āhua
Me hanga ngā paipa maitai ASTM A335 P92 e tetukanga maeneeneā, me tunua kia wera, kia matao rānei, e ai ki te whakaritenga.
He paipa kore hononga he paipa kāore he hononga whakarewa. I roto i ngā taiao pāmahana teitei me te pēhanga teitei, ka taea e ngā paipa kore hononga te tu atu ki ngā pēhanga me ngā pāmahana o roto teitei ake, ka pai ake te hanganga me ngā āhuatanga miihini, ā, ka karohia hoki ngā hapa pea i ngā hononga whakarewa.
Te Maimoatanga Wera
Me whakamahana anō te paipa P92 kia tukatukahia, ā, me tukatuka kia rite ki ngā whakaritenga.
| Tau | ASTM A335 P92 |
| Momo Whakamahana | whakataurite me te whakangāwari |
| Te Whakaōrite i te Mahana | 1900 ~ 1975 ℉ [1040 ~ 1080 ℃] |
| Te pāmahana whakamahana | 1350 ~ 1470 ℉ [730 ~ 800 ℃] |
Ka whakapakeketia ētahi o ngā maitai ferritic e hipokina ana e tēnei whakatakotoranga mēnā ka tere te whakamatao mai i runga ake i tō rātou pāmahana tino nui. Ka whakapakeketia ētahi e te hau, arā, ka whakapakeketia ki tētahi taumata kāore e hiahiatia ina whakamataohia i te hau mai i ngā pāmahana teitei.
Nō reira, me whai i muri i ngā mahi e pā ana ki te whakamahana i aua maitai i runga ake i ō rātou pāmahana tino nui, pērā i te whakarewa, te whakapiri, me te piko wera, me whai i te maimoatanga wera e tika ana.
| ASME | ASTM | EN | GB |
| ASME SA335 P92 | ASTM A213 T92 | EN 10216-2 X10CrWMoVNb9-2 | GB/T 5310 10Cr9MoW2VNbBN |
Rauemi:Ngā paipa me ngā hononga maitai kore hononga ASTM A335 P92;
Rahi:1/8" ki te 24", ka taea rānei te whakarite kia rite ki ō hiahia;
Roa:Te roa matapōkere, te tapahi rānei kia rite ki te tono;
Tākai:He paninga pango, he pito whakarara, he parenga pito paipa, he pouaka rakau, me ētahi atu.
Tautoko:Te tiwhikete IBR, te tirotiro TPI, te MTC, te tapahi, te tukatuka, me te whakaritenga;
MOQ:1 mita;
Ngā Ture Utu:T/T, L/C rānei;
Utu:Whakapā mai ki a mātou mō ngā utu hou mō ngā paipa maitai P92.
