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Seamless Cov Hlau Hlawv Rau Cov Qauv Li Qub

Seamless Cov Hlau Hlaub Rau Cov Qauv Qub Featured Duab
  • Seamless Cov Hlau Hlawv Rau Cov Qauv Li Qub
  • Seamless Cov Hlau Hlawv Rau Cov Qauv Li Qub
  • Seamless Cov Hlau Hlawv Rau Cov Qauv Li Qub

Cov lus piav qhia luv luv:

Seamless Cov Hlau Hlaub Rau Cov Qauv Txheej Txheem, Seamless Cov Hlau Hlaub Rau Cov Neeg Kho Tshuab HauvGB / 8162-2008Txheem. Cov khoom siv muaj cov khoom siv zoo ntawm cov hlau ua kom zoo thiab muaj 10,20,20,35,45, Q490,42crmo, 35Cro.


  • Kev Them Nyiaj:30% tso nyiaj, 70% L / C lossis B / L Luam lossis 100% L / C thaum pom
  • Min.Arder Kom Muaj nuj nqis:1 PC
  • Muab khoom muaj peev xwm:Txhua xyoo 20000 tons cov khoom lag luam ntawm cov yeeb nkab steel
  • Lub sij hawm ua:7-14 hnub yog tias hauv Tshuag, 30-45 hnub los tsim
  • Pob:Dub vanishing, bevel thiab cap rau txhua tus neeg yeeb nkab; Od hauv qab 219 hli yuav tsum tau ntim rau hauv pob, thiab txhua pob tsis muaj dua 2 tons.
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    Khoom Qhia Qhia

    Q345

    Khoom Ntawv

    Lub ntsiab

    Txheem:GB / 8162-2008 Alloy los yog tsis: alloy lossis carbon
    Cov pawg kawm qib: 10,20,35, Q445, Q460, Q490, Q620,42CRMO, 35CRMO, thiab lwm yam Daim Ntawv Thov: Yeeb Nkab Yeeb Nkab, Yeeb Nkab
    Thickness: 1 - 100 hli Nto Kho: raws li cov neeg yuav tsum tau ua
    Cov Inch txheej (Round): 10 - 1000 mm Cov txheej txheem: Kub Rolled lossis Cold Rolled
    Ntev: taag ntev lossis random ntev Kev kho cua sov: annealing / normating / kev ntxhov siab rov qab
    Ntu puab: Round Tshwj Xeeb Yeeb: Cov yeeb nkab tuab phab ntsa
    Qhov chaw ntawm keeb kwm: Suav Kev siv: tsim kho, txhua yam
    Ntawv pov thawj: ISO9001: 2008 Kuaj: ect / ut

    Daim ntawv thov

    Nws yog tsuas yog siv los ua cov carbon qauv hlau, alloy qauv txheej txheem thiab tshuab cov txheej txheem.

    Qib tseem

    Qeb ntawm Carbon Qauv Hlau: 10,20,35, 45, Q345, Q490, Q620 ,, thiab lwm yam

    Qib ntawm alloy qauv hlau: 42CRMO, 35CRRRMO, thiab lwm yam

    Cov Khoom Siv Siv Tshuaj

    Qib hlau Qib Zoo Tshuaj Muaj Tshuaj
    C Si Mn P S Nb V Ti Cr Ni Cu Nd Mo B Als "
    tsis muaj ntau dua tsis tsawg tshaj li
    Q345 A 0.2 0.5 1.7 0.035 0.035       0.3 0.5 0.2 0.012 0.1 - -
    B 0.035 0.035
    C 0.03 0.03 0.07 0.15 0.2 0.015
    D 0.18 0.03 0.025
    E 0.025 0.02
    Q390 A 0.2 0.5 1.7 0.035 0.035 0.07 0.2 0.2 0.3 0.5 0.2 0.015 0.1 - -
    B 0.035 0.035
    C 0.03 0.03 0,015
    D 0.03 0.025
    E 0.025 0.02
    Q42o A 0.2 0.5 1.7 0.035 0.035 0.07 0.2 0.2 0.3 0.8 0.2 0.015 0.2 - -
    B 0.035 0.035
    C 0.03 0.03 0.015
    D 0.03 0.025
    E 0.025 0.02
    Q46o C 0.2 0.6 1.8 0.03 0.03 0.11 0.2 0.2 0.3 0.8 0.2 0.015 0.2 0.005 0.015
    D 0.03 0.025
    E 0.025 0.02
    Q500 C 0J8 0.6 1.8 0.025 0.02 0.11 0.2 0.2 0.6 0.8 0.2 0.015 0.2 0.005 0.015
    D 0.025 0.015
    E 0.02 0.01
    Q550 C 0.18 0.6 2 0.025 0,020 0.11 0.2 0.2 0.8 0.8 0.2 0.015 0.3 0.005 0.015
    D 0.025 0,015
    E 0.02 0.01
    Q62o C 0.18 0.6 2 0.025 0.02 0.11 0.2 0.2 1 0.8 0.2 0.015 0.3 0.005 0.015
    D 0.025 0.015
    E 0.02 0.01
    A. Ntxiv rau Q345A thiab Q345b qib, cov hlau yuav tsum muaj tsawg kawg yog ib qho ntawm Greded Grandic ntsiab al, NB, V, thiab ti. Raws li cov kev xav tau, tus neeg xa khoom tuaj yeem ntxiv ib lossis ntau qhov ua kom zoo qoob loo cov nplej. Tus nqi siab tshaj plaws yuav tsum tau teev tseg hauv lub rooj. Thaum sib xyaw ua ke, NB + V + tsis yog ntau tshaj 0.22% b. Rau Q345, Q490, Q420 thiab Q46O qib, Mo + Cr tsis loj dua 0.30% c. Thaum CR thiab NI ntawm txhua qib kawm yog siv los ua cov ntsiab lus tseem ceeb, cov ntsiab lus ntawm CR thiab Ni yuav tsum tsis txhob loj dua 0.30%; Thaum nws yog qhov yuav tsum tau ntxiv, cov ntsiab lus yuav tsum ua kom tau raws li qhov yuav tsum tau ua nyob rau hauv lub rooj lossis raug txiav txim siab los ntawm tus neeg xa khoom thiab tus yuav los ntawm kev sab laj.D. Yog tias tus neeg xa khoom tuaj yeem paub meej tias cov ntsiab lus nitrogen ua tau raws li cov tseev kom muaj nyob hauv lub rooj, cov nitrogen cov ntsiab lus kev tsom xam yuav tsis ua. Yog tias AL, NP, V, V, TI thiab lwm cov alloy cov ntsiab lus nrog nitrogen fixation ntxiv rau cov hlau, cov ntsiab lus nitrogen tsis txwv. Cov nitrogen fixation cov ntsiab lus yuav tsum tau teev nyob hauv daim ntawv pov thawj zoo.
    E. Thaum siv tag nrho txhuas, tag nrho cov ntsiab lus tag nrho Al ≥ 0020%.

    Teem nqi

    Cov pa roj carbon sib npaug ntawm kev sib npaug ntawm kev sib npaug (feem ntau ntawm cov feem) /%

    Nominal ntsa thickness s≤ 16 hli

    Nominal Phab Ntsa Thickness S2> 16 Mmon~30 hli

    Nominal ntsa tuab s> 30 hli

    Kub dov los yog ib txwm muaj

    Quenching + Tempering

    Kub dov los yog li qub

    Quenching + Tempering

    Kub dov los yog li qub

    Quenching + Tempering
    Q345

    <0.45

    -

    <0.47

    -

    <0.48

    一
    Q390

    <0.46

    一

    W0.48

    -

    <0.49

    -
    Q420

    <0.48

    一

    <0.50

    <0.48

    <0.52

    <0,48
    Q460

    <0.53

    <0.48

    W0.55

    <0.50

    <0.55

    W0.50
    Q500

    一

    <0.48

    一

    <0.50

    一

    W0.50
    Q550

    -

    <0.48

    Cov. 一

    <0.50

    一

    <0.50
    Q62o

    -

    <0.50

    -

    <0.52

    -

    W0.52
    Q690

    -

    		 <0.50

    -

    <0.52

    -

    W0.52

    Cov Cuab Yeej Cuab Yeej Cuab Yeej

    Cov Khoom Siv Neeg Kho Tshuab Ntawm Cov Khoom Zoo Carbon Steel Hlau Thiab Tsawg-Alloy High-zog Txheej Txheem Hlau

    Teem nqi Qib Zoo Paib lub zog Txo cov txiaj ntsig lub zog Elongation tom qab tawg Cuam Tshuam
     
    Nominal ntsa tuab qho so Nqus zog
    <16 hli > 16 MMO 2 > 30 hli
     
    30 hli
    tsis tsawg tshaj li tsis tsawg tshaj li
    10 - > 335 205 195 185 24 - -
    15 - > 375 22 215 205 22 - 一
    20 - > 410 245 235 22 20 - -
    25 - > 450 275 26 255 18 - -
    35 - > 510 305 295 285 17 一 -
    45 - 2590 335 325 315 14 - -
    20mn - • > 450 275 26 255 20 - 一
    25mn - > 490 295 285 275 18 - -
    Q345 A 470-630 345 325 295 20 - 一
    B 4 ~ 20 34
    C 21 0
    D -20
    E -40 27
    Q39o A 490-650 390 370 350 18    
    B 20 34
    C 19 0
    D -20
    E -40 27
    Q42o A 520~680 420 400 380 18    
    B 20 34
    C 19 0
    D -20
    E -40 27
    Q46o C 550~720 460 440 420 17 0 34
    D -20
    E -40 27
    Q500 C 6107770 500 480 440 17 0 55
    D -20 47
    E -40 31
    Q550 C 670~830 550 530 490 16 0 55
    D -20 47
    E -40 31
    Q62o C 710~80 620 590 550 15 0 55
    D -20 47
    E -40 31
    Q690 C 770~94. 690 660 620 14 0 55
    D -20 47
    E -40 31

    Cov Cuab Yeej Siv Cov Neeg Kho Tshuab ntawm Alloy Hlau Kav

    NO Teem nqi Pom zoo kom sov Regime Cov Khoom Siv Tensile Annealed los yog qhov kub siab tempered steel hlau kab mob brinell hardness HBW
    Quenching (normalizing) Npau taws Tossagpmpa Tensile Tuag MPA Elongation tom qab tawg%
    qho so Lub txias txias Qho so Lub txias txias
    Tus nyiam Ib xi nkoos tsis tsawg tshaj li tsis muaj ntau dua
    1 40MN2 840   Dej, Roj 540 Dej, Roj 885 735 12 217
    2 45MN2 840   Dej, Roj 550 Dej, Roj 885 735 10 217
    3 27TIMN 920   Ywg dej 450 Dej, Roj 980 835 12 217
    4 40mnbc 850   roj 500 Dej, Roj 980 785 10 207
    5 45mnbc 840   roj 500 Dej, Roj 1 030 835 9 217
    6 20mn2bc'f 880   roj 200 Dej, huab cua 980 785 10 187
    7 20crdj 880 800 Dej, Roj 200 Dej, huab cua 835 540 10 179
    785 490 10 179
    8 30CR 860   roj 500 Dej, Roj 885 685 11 187
    9 35CR 860   roj 500 Dej, Roj 930 735 11 207
    10 Daimr 850   roj 520 Dej, Roj 980 785 9 207
    11 45CR 840   roj 520 Dej, Roj 1 030 835 9 217
    12 50CRR 830   roj 520 Dej, Roj 1 080 930 9 229
    13 38crsi 900   roj 600 Dej, Roj 980 835 12 255
    14 20cmodj 880   Dej, Roj 500 Dej, Roj 885 685 11 197
    845 635 12 197
    15 35Cro 850   roj 550 Dej, Roj 980 835 12 229
    16 42Cro 850   roj 560 Dej, Roj 1 080 930 12 217
    17 38Crmoald 940   Dej, Roj 640 Dej, Roj 980 835 12 229
    930 785 14 229
    18 50crrva 860   roj 500 Dej, Roj 1 275 1 130 10 255
    19 2ocrmnn 850   roj 200 Dej, huab cua 930 735 10 187
    20 20cmmnsif 880   roj 480 Dej, Roj 785 635 12 207
    21 3crmnSif 880   roj 520 Dej, Roj 1 080 885 8 229
    980 835 10 229
    22 35crmnsia £ 880   roj 230 Dej, huab cua 1 620   9 229
    23 20crmntie-f 880 870 roj 200 Dej, huab cua 1 080 835 10 217
    24 30Crmntie * F 880 850 roj 200 Dej, huab cua 1 470   9 229
    25 12CRNI2 860 780 Dej, Roj 200 Dej, huab cua 785 590 12 207
    26 12CRNI3 860 780 roj 200 Dej, huab cua 930 685 11 217
    27 12CR2NI4 860 780 roj 200 Dej, huab cua 1 080 835 10 269
    28 40cnausoa 850 - roj 600 Dej, huab cua 980 835 12 269
    29 45cnimova 860 - roj 460 roj 1 470 1 32 7 269
    a. Cov kev pab kub uas muaj kev kho kom sov ntawm kev kho tshav kub tau teev nyob rau hauv lub roojb. Nyob rau hauv tensile kuaj, transverse lossis ntev kuaj yuav coj tau. Thaum tsis pom zoo, cov hnoos qeev tau siv ntev siv raws li kev txiav txim siab.c. Boron-unading steel tuaj yeem ua tau zoo li ua ntej quenching, thiab cov kev ntsuas kub tsis zoo yuav tsum tsis txhob siab dua nws txoj kev ua si kub.d. Kev xa tawm raws li txheej txheej ntawm cov ntaub ntawv teev los ntawm tus IANTER. Thaum tus IANTER tsis tau teev tseg, kev xa khoom tuaj yeem ua raws li ib qho ntawm cov ntaub ntawv.e. Thawj qhov quenching ntawm titanium steel nrog ming meng tuaj yeem hloov los ntawm normalizing.f. Isothermal quenching ntawm 280 c ~ 320 C.

    g. Nyob rau hauv tensile xeem, yog tias kev ntsuas tsis tuaj yeem ntsuas, RP0.2 tuaj yeem ntsuas tau es tsis txhob muaj.

     

    Kev nyiaj tau

    Kev pub sib txawv ntawm txoj kab uas hla ntawm cov yeeb nkab steel

    Hom Hlau Yeeb

    Muaj cai thev taus

    Kub Rolled Steel Yeeb Nkab

    ± 1% d lossis ± 0.5, qhov twg yog tus muaj ntau dua

    Txias Drawn Steel Yeeb Nkab

    Av 0,75% d lossis av 0.3, qhov twg yog qhov ntau dua

     

    Kev Pub Cuam Tshuam Ntawm Phab Ntsa Thickness ntawm Kub Rolled (Ncua) Steel Yeeb Nkab

    Hom Hlau Yeeb

    D

    S / d

    Muaj cai thev taus

    Kub Rolled Steel Yeeb Nkab

    <102

    -

    12.5% ​​s lossis ± 0.4, qhov twg yog tus muaj ntau dua

    > 102

    <0.05

    15% S lossis ± 0,4, qhov twg yog qhov ntau dua

    > 0.05 ~0.10

    12.5% ​​s lossis ± 0.4, qhov twg yog tus muaj ntau dua

    > 0.10

    + 12.5% ​​s

    -10% s

    Thaum tshav kub kub nthuav tawm cov yeeb nkab steel

    一

    土 15% s

    Kev pub sib txawv ntawm phab ntsa tuab ntawm cov khaub noom txias (dov) cov yeeb nkab steel

    • Hom Hlau Yeeb

    S

    Muaj cai thev taus

    Mob khaub thuas kos (dov)

    V

    + 15% s

    Lossis 0.15, qhov twg yog tus muaj ntau dua

    -10% s

    > 3 - 10

    + 12.5% ​​s

    -10% s

    > 10

    土 10% s

    Kev xeem yuav tsum tau ua

    Tshuaj lom neeg muaj pes tsawg leeg, ncab, hardness, squash, squas, ultrasonic xeem, kho kom pom, kom pom, galvanized

    Khoom Qhia Qhia

    Mechanical / Tshuaj Thiab Chiv Kav Pipes

    GB / T 8162-2008

    ASTM A519-2006

    BS En 10210-1-2006

    ASTM A53 / A53M-2012

    GB 9948-2006

    GB 6479-2013

    GB / T 17396-2009

  • Yav dhau los:
  • Tom ntej:

    • Seamless cov qauv hlua rau lub hom phiaj tsim qauv, seamless cov hlau tub rau cov neeg kho tshuab cov qauv hauv GB / 8162-2008 txheem. Nyob rau hauv lub seamless steel raj series, muaj ib hom khoom hu hu ua Q345b Seamless Steel Tube yog ib qho tsawg alloy series. Nyob rau hauv cov khoom siv alloy tsawg, cov khoom no yog feem ntau. Q345 Seamless steel raj yog ib hom ntawm cov khoom siv stair. Q yog cov txiaj ntsig ntawm cov khoom siv no, thiab 345 yog cov txiaj ntsig ntawm cov khoom no, uas yog ib ncig ntawm 345. Thiab cov txiaj ntsig zoo yuav txo qis ntawm cov ntaub ntawv tuab. Q345A, tsis cuam tshuam; Q345B, yog 20 degrees cov kev cuam tshuam zoo tshaj plaws; Q345C chav kawm, yog 0 degree cuam tshuam; Q345d, yog -20 degree cuam tshuam; Chav Kawm Q345E, rho tawm 40 degrees. Qhov cuam tshuam tus nqi tseem txawv ntawm kev cuam tshuam sib txawv. Q345A, Q345B, Q345C, Q345D, Q345E. Qhov no yog qib kev sib txawv, uas sawv cev, feem ntau cuam tshuam kub yog txawv.

    Tus Qauv Sib Taus

    1. Seamless cov yeeb nkab rau cov qauv (GB / T8162-2018) yog cov qauv siv hluav taws xob seamless rau cov qauv dav dav. 2. Seamense steel yeeb nkab rau cov tsheb thauj mus los (GB / T8163-203-203-203-203-203-203-203-203-203-203-203-203-203-203-203-203-203-203-203-203-203-203-203-203-203-203-203-203-203-203-203-203-203-203-203-203-203-203-203-203-203-203-203-203-203-203-203-203-203-203-203-203-203-203-203-203-203-203-203-203-203-203-203-203-203-203-203-203-203-203-203-203-203-203-203-203-203-203-203-203-203-203-203-203-203-203-203-203-203-203-203-203-203-203) yog siv, roj thiab lwm yam kua hauv cov yeeb nkab uas tsis sib haum. 3. Seamless cov yas tubes rau tsawg thiab nruab nrab siab boiles (GRED) 4. Seamless steel raj rau siab siab boiler (GB5310-2018) yog siv rau kev tsim cov roj carbon hlau muaj zog thiab stainless thiab stainless roj resistant steel seagless steel raj.

    Q345B Seamless Tus Hlau Tube Cov Ntawv Tshwj Xeeb

    kev qhia tshwj xeeb

    kev qhia tshwj xeeb

    kev qhia tshwj xeeb

    kev qhia tshwj xeeb

    14 * 3

    38 * 5.5

    89 * 5

    133 * 18

    14 * 3.5

    42 * 3

    89 * 5.5

    159 * 6

    14 * 4

    42 * 3.5

    89 * 6

    159 * 6.5

    16 * 3

    42 * 4

    89 * 7

    159 * 7

    18 * 2

    42 * 5

    89 * 7.5

    159 * 8

    18 * 3

    42 * 6

    89 * 8

    159 * 9.5

    18 * 4

    42 * 8

    89 * 9

    159 * 10

    18 * 5

    45 * 3

    89 * 10

    159 * 12

    19 * 2

    45 * 4

    89 * 11

    159 * 14

    21 * 4

    45 * 5

    89 * 12

    159 * 16

    22 * 2.5

    45 * 6

    108 * 4.5

    159 * 18

    22 * 3

    45 * 7

    108 * 5

    159 * 20

    22 * 4

    48 * 4

    108 * 6

    159 * 28

    22 * 5

    48 * 4.5

    108 * 7

    168 * 6

    25 * 2.5

    48 * 5

    108 * 8

    168 * 7

    25 * 3

    48 * 6

    108 * 9

    168 * 8

    25 * 4

    48 * 7

    108 * 10

    168 * 9.5

    25 * 5

    48.3 * 12.5

    108 * 12

    168 * 10

    25 * 5.5

    51 * 3

    108 * 14

    168 * 11

    27 * 3.5

    51 * 3.5

    108 * 15

    168 * 12

    27 * 4

    51 * 4

    108 * 16

    168 * 14

    27 * 5

    51 * 5

    108 * 20

    168 * 15

    27 * 5.5

    51 * 6

    114 * 5

    168 * 16

    28 * 2.5

    57 * 4

    114 * 6

    168 * 18

    28 * 3

    57 * 5

    114 * 7

    168 * 20

    28 * 3.5

    57 * 5.5

    114 * 8

    168 * 22

    28 * 4

    57 * 6

    114 * 8.5

    168 * 25

    30 * 2.5

    60 * 4

    114 * 9

    168 * 28

    32 * 2.5

    60 * 4

    114 * 10

    180 * 10

    32 * 3

    60 * 5

    114 * 11

    Xyoo 194 * 10

    32 * 3.5

    60 * 6

    114 * 12

    Xyoo 194 * 12

    32 * 4

    60 * 7

    114 * 13

    Xyoo 194 * 14

    32 * 4.5

    60 * 8

    114 * 14

    Xyoo 194 * 16

    32 * 5

    60 * 9

    114 * 16

    Xyoo 194 * 18

    34 * 3

    60 * 10

    114 * 18

    Xyoo 194 * 20

    34 * 4

    76 * 4.5

    133 * 5

    Xyoo 194 * 26

    34 * 4.5

    76 * 5

    133 * 6

    219 * 6.5

    34 * 5

    76 * 6

    133 * 7

    219 * 7

    34 * 6.5

    76 * 7

    133 * 8

    219 * 8

    38 * 3

    76 * 8

    133 * 10

    219 * 9

    38 * 3.5

    76 * 9

    133 * 12

    219 * 10

    38 * 4

    76 * 10

    133 * 13

    219 * 12

    38 * 4.5

    89 * 4

    133 * 14

    219 * 13

    38 * 5

    89 * 4.5

    133 * 16

    219 * 14

    219 * 16

    273 * 36

    356 * 28

    426 * 12

    219 * 18

    273 * 40

    356 * 36

    426 * 13

    219 * 20

    273 * 42

    377 * 9

    426 * 14

    219 * 22

    273 * 45

    377 * 10

    426 * 17

    219 * 24

    298.5 * 36

    377 * 12

    426 * 20

    219 * 25

    325 * 8

    377 * 14

    426 * 22

    219 * 26

    325 * 9

    377 * 15

    426 * 30

    219 * 28

    325 * 10

    377 * 16

    426 * 36

    219 * 30

    325 * 11

    377 * 18

    426 * 40

    219 * 32

    325 * 12

    377 * 20

    426 * 50

    219 * 35

    325 * 13

    377 * 22

    457 * 9.5

    219 * 38

    325 * 14

    377 * 25

    457 * 14

    273 * 7

    325 * 15

    377 * 32

    457 * 16

    273 * 8

    325 * 16

    377 * 36

    457 * 19

    273 * 9

    325 * 17

    377 * 40

    457 * 24

    273 * 9.5

    325 * 18

    377 * 45

    457 * 65

    273 * 10

    325 * 20

    377 * 50

    508 * 13

    273 * 11

    325 * 22

    406 * 9.5

    508 * 16

    273 * 12

    325 * 23

    406 * 11

    508 * 20

    273 * 13

    325 * 25

    406 * 13

    508 * 22

    273 * 15

    325 * 28

    406 * 17

    558.8 * 14

    273 * 16

    325 * 30

    406 * 22

    530 * 13

    273 * 18

    325 * 32

    406 * 32

    530 * 20

    273 * 20

    325 * 36

    406 * 36

    570 * 12.5

    273 * 22

    325 * 40

    406 * 40

    610 * 13

    273 * 25

    325 * 45

    406 * 55

    610 * 18

    273 * 28

    356 * 9.5

    406.4 * 50

    610 * 78

    273 * 30

    356 * 12

    406.4 * 55

    624 * 14.2

    273 * 32

    356 * 15

    406 * 60

    824 * 16.5

    273 * 35

    356 * 19

    406 * 65

    824 * 20

    Cov Khoom Siv Siv Tshuaj

    Qib hlau

    Qib Zoo

    Tshuaj Muaj Tshuaj

    C

    Si

    Mn

    P

    S

    Nb

    V

    Ti

    Cr

    Ni

    Cu

    Nd

    Mo

    B

    Als "

    Tsis muaj ntau dua

    Tsis tsawg tshaj li

    Q345

    A

    0.2

    0.5

    1.7

    0.035

    0.035

    		      

    0.3

    0.5

    0.2

    0.012

    0.1

    -

    -

    B

    0.035

    0.035

    C

    0.03

    0.03

    0.07

    0.15

    0.2

    0.015

    D

    0.18

    0.03

    0.025

    E

    0.025

    0.02
    A. Ntxiv rau Q345A thiab Q345b qib, cov hlau yuav tsum muaj tsawg kawg yog ib qho ntawm Greded Grandic ntsiab al, NB, V, thiab ti. Raws li cov kev xav tau, tus neeg xa khoom tuaj yeem ntxiv ib lossis ntau qhov ua kom zoo qoob loo cov nplej. Tus nqi siab tshaj plaws yuav tsum tau teev tseg hauv lub rooj. Thaum sib xyaw ua ke, NB + V + tsis yog ntau tshaj 0.22% b. Rau Q345, Q490, Q420 thiab Q46O qib, Mo + Cr tsis loj dua 0.30% c. Thaum CR thiab NI ntawm txhua qib kawm yog siv los ua cov ntsiab lus tseem ceeb, cov ntsiab lus ntawm CR thiab Ni yuav tsum tsis txhob loj dua 0.30%; Thaum nws yog qhov yuav tsum tau ntxiv, cov ntsiab lus yuav tsum ua kom tau raws li qhov yuav tsum tau ua nyob rau hauv lub rooj lossis raug txiav txim siab los ntawm tus neeg xa khoom thiab tus yuav los ntawm kev sab laj.D. Yog tias tus neeg xa khoom tuaj yeem paub meej tias cov ntsiab lus nitrogen ua tau raws li cov tseev kom muaj nyob hauv lub rooj, cov nitrogen cov ntsiab lus kev tsom xam yuav tsis ua. Yog tias AL, NP, V, V, TI thiab lwm cov alloy cov ntsiab lus nrog nitrogen fixation ntxiv rau cov hlau, cov ntsiab lus nitrogen tsis txwv. Cov nitrogen fixation cov ntsiab lus yuav tsum tau teev nyob hauv daim ntawv pov thawj zoo. E. Thaum siv tag nrho txhuas, tag nrho cov ntsiab lus tag nrho Alt≥0020%.

     

    Teem nqi

    Cov pa roj carbon sib npaug ntawm kev sib npaug ntawm kev sib npaug (feem ntau ntawm cov feem) /%

    Nominal ntsa thickness s≤ 16 hli

    Nominal Phab Ntsa Thickness S2> 16 hliTom mu30 hli

    Nominal ntsa tuab s> 30 hli

    Kub dov los yog ib txwm muaj

    QuenchingTom tsevNpau taws

    Kub dov los yog li qub

    QuenchingTom tsevNpau taws

    Kub dov los yog li qub

    QuenchingTom tsevNpau taws

    Q345

    <0.45

    -

    <0.47

    -

    <0.48

    一

     

    Cov Cuab Yeej Cuab Yeej Cuab Yeej

    Cov Khoom Siv Neeg Kho Tshuab Ntawm Cov Khoom Zoo Carbon Steel Hlau Thiab Tsawg-Alloy High-zog Txheej Txheem Hlau

    Teem nqi

    Qib Zoo

    Paib lub zog

    Txo cov txiaj ntsig lub zog

    Elongation tom qab tawg

    Cuam Tshuam
     

    Nominal ntsa tuab

    Qho so

    Nqus zog

    <16 hli

    > 16 hliTom mu

    >30 hli
     

    30 hli

    Tsis tsawg tshaj li

    Tsis tsawg tshaj li

    Q345

    A

    470-630

    345

    325

    295

    20

    -

    一

    B

    4 ~ 20

    34

    C

    21

    0

    D

    -20

    E

    -40

    27

     

    Kev xeem yuav tsum tau ua

    Tshuaj lom neeg muaj feem: ncab, hardness, squas, squas, squas, edash, nrhiav kom tau, xaim, galvanized

    Q345B 拼图 (1)

    Sau koj cov lus ntawm no thiab xa mus rau peb
    Ntaus nkag mus tshawb lossis ua kom kaw