• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    1,271,033. Fe-Cr-Ni alloy. SOC DES ACIERIES DU MANOIR POMPEY. July 30, 1970 [March 23, 1970], No.36944/70. Heading C7A. An alloy with good high temperature creep resistance, good corrosion resistance up to at least 1200‹C. and high resistance to carburization, comprises:- C 0À05-0À85% Cr 20-35% Mn 0À2-4% N 0À02-0À25% Ni 22-40% Nb 1-8% Si 0À2-3% W 0À3-4À5% and below 0À05% each of P and S, the balance, apart from impurities, being Fe. The alloys may be used for making parts of carburizing furnaces or petrochemical furnaces or ovens.
    公开号:SU858573A3
    申请号:SU711619478
    申请日:1971-02-24
    公开日:1981-08-23
    发明作者:Белло Жан；Юго Мишель
    申请人:Сосьете Дэз Асьери Дю Мануар Помпе (Фирма)；
    IPC主号:
    专利说明:

    (54) HIGH-ALLOY STEEL
    I
     The invention relates to ferrous metallurgy, and in particular to the search for heat-resistant steels for furnace parts operating in carbon-containing atmospheres.
    Known nickel chrome steel, resistant to creep resistance and corrosion at high temperature
    Cil.to
    However, these steels do not have resistance to re-carburization by combustion products 1.
    The closest to the proposed is heat-resistant and heat-resistant 15 steel, containing chromium, nickel, manganese, silicon, tungsten and niobium 21.,
    However, steel is known as well, for all the positive properties listed above, it is carburized in carbon-containing atmospheres.
    The purpose of the invention is to increase the resistance of steel to carburization and creep resistance.25
    The goal is achieved by the fact that the steel contains these components in the following ratio, wt.%:
    Carbon0.35-0.55
    Nickel31-38 30
    25-35
    Chrome 0.8-l, g
    Manganese 1.2-1.6
    Silicon
    1-2
    Tungsten 1.1-2
    Niobium 0.05-0.25
    Nitrogen Else
    Iron
    This composition of steel makes it possible to increase the resistance of steel to re-carburization and creep.
    The results of the carburizing study on the steel batch of the compositions are presented in Table 1.
    Table 1 The study was conducted on the incorporation of carbon in cemented:,. layers depending on the depth ate processing samples in cementing. , at high temperatures. It is known that layers of 0.5 here-, depth are: the most enriched, and layers of 5-6 mm depth are the limit of the carburization depth. lata presented in table 2. T of b of l and c and 2 Resistance to creep of deformation of 1% for 300 h at and relative lengthening after processing at 1150-1200s for steel of the same structures are presented in tab.
    Table 3
    i: li:: r
    The compositions of steel
    Creep resistance, to kg / mm
    12 12.35 11.40
    Relative
    权利要求:
    Claims (2)
    [1]
    20 17.5 24 elongation,% The formula of the invention is steel, containing copper, nickel, chromium, marga, copper, tungsten, niobium, nitrogen, 1 iron, which is designed to increase the resistance of steel to carburization and creep resistance. It contains the indicated components in the following ratio, wt.%: Carbon 0.35-0.55 Nickel 31-38 Chromium25-35 Manganese 0.8-1.6 Silicon 1.2-1, b Tungsten 1-2 Niobium 1 , 1-2 AZOT0.05-0.25 Iron Else Sources of information taken into account during the examination 1.Special steels and alloys, Reference Materials in mechanical engineering, 1968, t. , S.143-177.
    [2]
    2. The patent of Germany 1238675, cl. 40b 39/20, published. 1967.
    类似技术:
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    SU670632A1|1979-06-30|Steel for dies
    SU834221A1|1981-05-30|Steel
    SU950792A1|1982-08-15|Composition of steel
    ZHIGUTS et al.2018|THE TECHNOLOGY OF OBTAINING AND PROPERTIES WEARFIRMNESS THERMITE CAST IRON
    SU633922A1|1978-11-25|Steel
    SU692895A1|1979-10-25|Steel
    SU840186A1|1981-06-23|Stamp steel
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    同族专利:
    公开号 | 公开日
    US3758294A|1973-09-11|
    JPS4927725B1|1974-07-20|
    DE2037648C3|1978-12-07|
    DE2037648A1|1971-10-21|
    DE2037648B2|1973-10-18|
    NL165789B|1980-12-15|
    FR2082658A5|1971-12-10|
    BE790197Q|1973-02-15|
    GB1271033A|1972-04-19|
    NL7014405A|1971-09-27|
    NL165789C|1985-07-16|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    JPS4911720A|1972-05-17|1974-02-01|
    US3844774A|1973-09-24|1974-10-29|Carondelet Foundry Co|Corrosion-resistant alloys|
    US3947266A|1974-05-17|1976-03-30|Carondelet Foundry Company|Corrosion-resistant alloys|
    US4033767A|1975-09-19|1977-07-05|Chas. S. Lewis & Co., Inc.|Ductile corrosion resistant alloy|
    FR2333870B1|1975-12-02|1979-06-01|Pompey Acieries|
    US4058416A|1976-02-02|1977-11-15|Huntington Alloys, Inc.|Matrix-stiffened heat and corrosion resistant wrought products|
    US4026699A|1976-02-02|1977-05-31|Huntington Alloys, Inc.|Matrix-stiffened heat and corrosion resistant alloy|
    US4119456A|1977-01-31|1978-10-10|Steel Founders' Society Of America|High-strength cast heat-resistant alloy|
    US4126447A|1977-10-31|1978-11-21|Crucible Inc.|Lanthanum-modified high-temperature alloy|
    US4329173A|1980-03-31|1982-05-11|Carondelet Foundry Company|Alloy resistant to corrosion|
    US4410362A|1981-01-12|1983-10-18|Kubota Ltd.|Heat resistant cast iron-nickel-chromium alloy|
    JPH0156138B2|1981-10-12|1989-11-29|Kubota Ltd|
    US4853185A|1988-02-10|1989-08-01|Haynes International, Imc.|Nitrogen strengthened Fe-Ni-Cr alloy|
    SE462395B|1988-11-18|1990-06-18|Avesta Ab|AUSTENITIC JAERN-NICKEL-CHROME BAS-ALLOY WITH GOOD HIGH-TEMPERATURE PROPERTIES AND APPLICATION OF THIS|
    EP0477363A4|1990-04-16|1993-01-20|Carondelet Foundry Company|Heat resistant alloys|
    US5077006A|1990-07-23|1991-12-31|Carondelet Foundry Company|Heat resistant alloys|
    DE4130139C1|1991-09-11|1992-08-06|Krupp-Vdm Ag, 5980 Werdohl, De|
    US5194221A|1992-01-07|1993-03-16|Carondelet Foundry Company|High-carbon low-nickel heat-resistant alloys|
    US5516485A|1994-03-17|1996-05-14|Carondelet Foundry Company|Weldable cast heat resistant alloy|
    US7749432B2|2005-01-19|2010-07-06|Ut-Battelle, Llc|Cast, heat-resistant austenitic stainless steels having reduced alloying element content|
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    FR7010371A|FR2082658A5|1970-03-23|1970-03-23|
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