ASTM A213 T91.
Ibi byongeweho bivanga bitanga ibyuma bya T91 byimbaraga nubushyuhe buhebuje bwo hejuru, kurwanya ibinyabuzima, hamwe no kurwanya okiside, bigatuma bikoreshwa cyane mubiteke, superheater, hamwe no guhanahana ubushyuhe bikora mubihe by'ubushyuhe bwinshi nubushyuhe bukabije.
UNS nimero: K90901.
Imiyoboro ya T91 irashobora gushyirwa mubiceAndika 1naUbwoko bwa 2, hamwe itandukaniro nyamukuru ni uguhindura gake mubigize imiti.
Ubwoko bwa 2 bufite ibisabwa bikaze kubintu bya shimi; kurugero, ibirimo S byagabanutse kuva kuri 0.010% mubwoko bwa 1 kugeza kuri 0.005%, kandi imipaka yo hejuru no hepfo yibindi bintu nayo irahindurwa.
Ubwoko bwa 2 bugenewe cyane cyane ubushyuhe bukabije cyangwa ibidukikije byangirika, bitanga ubukana bunoze hamwe no guhangana n’ibikurura.
Ibikurikira, reka turebe neza ibisabwa mubigize imiti ya Type 1 na Type 2 mubisesengura ryibicuruzwa.
| Ibigize,% | ASTM A213 T91 Ubwoko bwa 1 | ASTM A213 T91 Ubwoko bwa 2 |
| C | 0.07 ~ 0.14 | 0.07 ~ 0.13 |
| Mn | 0.30 ~ 0.60 | 0.30 ~ 0.50 |
| P | 0.020 max | |
| S | 0.010 max | 0.005 max |
| Si | 0.20 ~ 0.50 | 0.20 ~ 0.40 |
| Ni | 0.40 max | 0,20 max |
| Cr | 8.0 ~ 9.5 | |
| Mo | 0.85 ~ 1.05 | 0.80 ~ 1.05 |
| V | 0.18 ~ 0.25 | 0.16 ~ 0.27 |
| B | - | 0.001 max |
| Nb | 0.06 ~ 0.10 | 0.05 ~ 0.11 |
| N | 0.030 ~ 0.070 | 0.035 ~ 0.070 |
| Al | 0.02 max | 0.020 max |
| W | - | 0.05 max |
| Ti | 0.01 max | |
| Zr | 0.01 max | |
| Ibindi Bice | - | Cu: 0,10 max Sb: 0.003 max Sn: 0.010 max Nka: 0.010 max N / Al: iminota 4.0 |
T91 Ubwoko bwa 1 na 2 bifite itandukaniro rito mubigize imiti, ariko birasabwa kimwe kubintu bya mashini no kuvura ubushyuhe.
Ibintu byiza
| Icyiciro | Imbaraga | Gutanga Imbaraga | Kurambura muri 2 muri. cyangwa mm 50 |
| T91 Ubwoko bwa 1 na 2 | 85 ksi [585 MPa] min | 60 ksi [415 MPa] min | 20% min |
Ibyiza byo gukomera
| Icyiciro | Brinell / Vickers | Rockwell |
| T91 Ubwoko bwa 1 na 2 | 190 kugeza 250 HBW 196 kugeza 265 HV | 90 HRB kugeza 25 HRC |
Ikizamini cya Flattening
Uburyo bwo kwipimisha bugomba kubahiriza ibisabwa bijyanye ningingo ya 19 ya ASTM A1016.
Ikizamini kimwe cyo gusibanganya kigomba gukorwa ku ngero kuva kuri buri mpera yigitereko kimwe cyarangiye, ntabwo cyakoreshejwe mugupimisha umuriro, uhereye kuri buri mugabane.
Ikizamini cyo gutwika
Uburyo bwo kwipimisha bugomba kubahiriza ibisabwa bijyanye ningingo ya 22 ya ASTM A1016.
Ikizamini kimwe cyaka kizakorerwa ku ngero kuva kuri buri mpera yigituba kimwe cyarangiye, ntabwo ari icyakoreshejwe mugupimisha, kuva kuri buri gice.
Ihinguriro n'imiterere
Imiyoboro ya ASTM A213 T91 igomba gukorwa nuburyo butagira ikidodo kandi igomba kuba ishyushye cyangwa yarangije ubukonje, nkuko bisabwa.
Imiyoboro y'icyuma idafite icyerekezo, hamwe nuburyo buhoraho kandi butarimo gusudira, gukwirakwiza impagarara zingana kurwego rwubushyuhe bwinshi, umuvuduko mwinshi, hamwe nuburyo bwo gupakira ibintu, bitanga imbaraga zisumba izindi, ubukana, hamwe no kurwanya umunaniro.
Kuvura Ubushuhe
Imiyoboro yose ya T91 yicyuma igomba gushyuha no gutunganywa ubushyuhe hakurikijwe ibisabwa bigaragara kumeza.
Kuvura ubushyuhe bigomba gukorwa ukundi kandi usibye gushyushya ubushyuhe.
| Icyiciro | Ubwoko bwo kuvura ubushyuhe | Austenitizing / Umuti wo gukemura | Subcritical Annealing cyangwa Ubushyuhe |
| T91 Ubwoko bwa 1 na 2 | gusanzwe no kurakara | 1900 - 1975 ℉ [1040 - 1080 ℃] | 1350 - 1470 ℉ [730 - 800 ℃] |
Ku cyiciro cya T91 Ubwoko bwa 2, kuvura ubushyuhe bigomba kwemeza ko nyuma yo kugabanya igipimo cyo gukonja kuva 1650 ° F kugeza 900 ° F [900 ° C kugeza 480 ° C] bidatinda kuri 9 ° F / min [5 ° C / min].
Ingano ya T91 nubunini bwurukuta mubisanzwe bitangwa imbere ya diametre imbere kuva kuri mm 3,2 kugeza kuri diametre yo hanze ya mm 127, naho uburebure bwurukuta kuva kuri mm 0.4 kugeza kuri mm 12,7.
Ubundi bunini bwimiyoboro ya T91 nayo irashobora gutangwa, mugihe ibindi bisabwa byose bya ASTM A213 byujujwe.
Kwihanganirana kwa T91 ni kimwe na T11. Kubisobanuro birambuye, urashobora kohereza kuriT11 Ibipimo n'ubworoherane.
| UNS | ASME | ASTM | EN | GB |
| K90901 | ASME SA213 T91 | ASTM A335 P91 | EN 10216-2 X10CrMoVNb9-1 | GB / T 5310 10Cr9Mo1VNbN |
Igicuruzwa:ASTM A213 T91 Ubwoko bwa 1 nubwoko bwa 2 imiyoboro idafite ibyuma hamwe nibikoresho;
Ingano:1/8 "kugeza 24", cyangwa byashizweho ukurikije ibyo usabwa;
Uburebure:Uburebure busanzwe cyangwa gukata gutumiza;
Gupakira:Ipitingi yumukara, impera zometseho, kurinda imiyoboro ya nyuma, ibisanduku byimbaho, nibindi.
Inkunga:Icyemezo cya IBR, ubugenzuzi bwa TPI, MTC, gukata, gutunganya, no kubitunganya;
MOQ:M 1;
Amasezerano yo kwishyura:T / T cyangwa L / C;
Igiciro:Twandikire kubiciro bya T91 bigezweho.
