Ifektri Eshibhile Yase-China Yokwakhiwa Kwempahla Ye-Carbon Steel Tube Ipayipi Elingenamthungo
Uhlolojikelele
Sizibophezele ekunikezeni insiza yokuthenga elula, eyonga isikhathi kanye neyonga imali eyodwa yomthengi we-Industrial Steel Pipe ezosetshenziselwa ukwakha, ukuphehla amandla, imboni kawoyela negesi, ukukhiqiza ugesi nokunye, Sikumema kokubili. wena kanye nebhizinisi lakho ukuze niphumelele kanye nathi futhi nihlanganyele isikhathi eside esibonakalayo emkhakheni womhlaba. Ikhwalithi enhle kakhulu, intengo encintisanayo, ukulethwa kwesikhathi kanye nesevisi ethembekile kungaqinisekiswa. Ngeminye imibuzo sicela ungangabazi ukusithinta. Siyabonga - Ukusekela kwakho kusikhuthaza ngokuqhubekayo.
Isicelo
Isetshenziswa Ikakhulukazi Ukwenza Insimbi Yesakhiwo Sekhabhoni, Insimbi Yokwakheka Kwengxubevange kanye nezakhiwo zemishini.
Ibanga Eliyinhloko
Ibanga Lensimbi Yensimbi Yekhabhoni: 10,20,35, 45,Q345,Q460,Q490,Q620, Njll
Ibanga Lensimbi Yesakhiwo Se-alloy: 42CrMo, 35CrMo, Etc
Ingxenye Yekhemikhali
Ibanga Lensimbi | Izinga lekhwalithi | Ukwakheka kwamakhemikhali | ||||||||||||||
C | Si | Mn | P | S | Nb | V | Ti | Cr | Ni | Cu | Nd | Mo | B | Als" | ||
akukho okukhulu kune | hhayi ngaphansi kuka | |||||||||||||||
Q345 | A | 0.20 | 0.50 | 1.70 | 0.035 | 0.035 | 0.30 | 0.50 | 0.20 | 0.012 | 0.10 | —- | - | |||
B | 0.035 | 0.035 | ||||||||||||||
C | 0.030 | 0.030 | 0.07 | 0.15 | 0.20 | 0.015 | ||||||||||
D | 0.18 | 0.030 | 0.025 | |||||||||||||
E | 0.025 | 0.020 | ||||||||||||||
Q390 | A | 0.20 | 0.50 | 1.70 | 0.035 | 0.035 | 0.07 | 0.20 | 0.20 | 0.3 | 0.50 | 0.20 | 0.015 | 0.10 | - | - |
B | 0.035 | 0.035 | ||||||||||||||
C | 0.030 | 0.030 | 0,015 | |||||||||||||
D | 0.030 | 0.025 | ||||||||||||||
E | 0.025 | 0.020 | ||||||||||||||
Q42O | A | 0.20 | 0.50 | 1.70 | 0.035 | 0.035 | 0.07 | 0.2 | 0.20 | 0.30 | 0.80 | 0.20 | 0.015 | 0.20 | —- | —- |
B | 0.035 | 0.035 | ||||||||||||||
C | 0.030 | 0.030 | 0.015 | |||||||||||||
D | 0.030 | 0.025 | ||||||||||||||
E | 0.025 | 0.020 | ||||||||||||||
Q46O | C | 0.20 | 0.60 | 1.80 | 0.030 | 0.030 | 0.11 | 0.20 | 0.20 | 0.30 | 0.80 | 0.20 | 0.015 | 0.20 | 0.005 | 0.015 |
D | 0.030 | 0.025 | ||||||||||||||
E | 0.025 | 0.020 | ||||||||||||||
Q500 | C | 0j8 | 0.60 | 1.80 | 0.025 | 0.020 | 0.11 | 0.20 | 0.20 | 0.60 | 0.80 | 0.20 | 0.015 | 0.20 | 0.005 | 0.015 |
D | 0.025 | 0.015 | ||||||||||||||
E | 0.020 | 0.010 | ||||||||||||||
Q550 | C | 0.18 | 0.60 | 2.00 | 0.025 | 0,020 | 0.11 | 0.20 | 0.20 | 0.80 | 0.80 | 0.20 | 0.015 | 0.30 | 0.005 | 0.015 |
D | 0.025 | 0,015 | ||||||||||||||
E | 0.020 | 0.010 | ||||||||||||||
Q62O | C | 0.18 | 0.60 | 2.00 | 0.025 | 0.020 | 0.11 | 0.20 | 0.20 | 1.00 | 0.80 | 0.20 | 0.015 | 0.30 | 0.005 | 0.015 |
D | 0.025 | 0.015 | ||||||||||||||
E | 0.020 | 0.010 | ||||||||||||||
a.Ngokungeziwe kumamaki e-Q345A ne-Q345B, insimbi kufanele iqukathe okungenani okukodwa kwezakhi zokusanhlamvu ezicwengisisiwe i-Al, Nb, V, ne-Ti. Ngokwezidingo, umphakeli angakwazi ukwengeza izakhi zokusanhlamvu ezicwengisisiwe eyodwa noma ngaphezulu. Inani eliphakeme lizoba njengoba lishiwo kuthebula. Uma ihlanganiswa, i-Nb + V + Ti ayikho ngaphezu kuka-0.22%b. Kumabanga e-Q345, Q390, Q420 kanye ne-Q46O, i-Mo + Cr ayikho ngaphezu kuka-0.30%c. Uma i-Cr ne-Ni yebanga ngalinye kusetshenziswa njengezakhi ezisele, okuqukethwe kwe-Cr ne-Ni akufanele kube kukhulu kuno-0.30%; uma kudingekile ukwengeza, okuqukethwe kufanele kuhlangabezane nezidingo etafuleni noma kunqunywe umphakeli nomthengi ngokubonisana.d. Uma umphakeli engaqinisekisa ukuthi okuqukethwe yi-nitrogen kuyahlangabezana nezimfuneko ezisethebula, ukuhlaziywa kokuqukethwe kwe-nitrogen kungase kungenziwa. Uma i-Al, Nb, V, Ti nezinye izakhi ze-alloy ezine-nitrogen fixation zengezwa ensimbi, okuqukethwe kwe-nitrogen akunqunyelwe. Okuqukethwe kokulungisa i-nitrogen kufanele kucaciswe kusitifiketi sekhwalithi.e. Uma usebenzisa i-aluminium egcwele, ingqikithi yokuqukethwe kwe-aluminium Alt ≥ 0020%. |
Ibanga | I-Carbon elingana ne-CEV (ingxenye enkulu) /% | |||||
Ukujiya kodonga okuzisholo s≤ 16mm | Ukujiya kodonga okuzenzela S2>16 mm〜30 mm | Ubukhulu bodonga lokuzisholo S>30mm | ||||
Okushisayo okugoqiwe noma okujwayelekile okujwayelekile | Ukucisha +ukucasuka | Okushisayo okugoqiwe noma okujwayelekile | Ukucisha +ukucasuka | Okushisayo okugoqiwe noma okujwayelekile | Ukucisha +ukucasuka | |
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 | .一 | <0.50 | 一 | <0.50 |
Q62O | - | <0.50 | - | <0.52 | - | W0.52 |
Q690 | - | <0.50 | - | <0.52 | - | W0.52 |
Impahla Mechanical
Izici zokumakhenikha zensimbi yesakhiwo sensimbi yekhwalithi ephezulu kanye namapayipi ensimbi anengxubevange ephansi enamandla aphezulu
Ibanga | Izinga lekhwalithi | Isivuno Amandla | Amandla esivuno esiphansi | Ukuvuvukala ngemuva kokuvuvukala | Ukuhlolwa komthelela | |||
Ukujiya kodonga okuzisholo | izinga lokushisa | Gcoba amandla | ||||||
<16 mm | >16 mm〜 | 〉30 mm | ||||||
30 mm | ||||||||
hhayi ngaphansi kuka | hhayi ngaphansi kuka | |||||||
10 | - | > 335 | 205 | 195 | 185 | 24 | - | - |
15 | - | > 375 | 225 | 215 | 205 | 22 | - | 一 |
20 | —- | > 410 | 245 | 235 | 225 | 20 | - | - |
25 | - | > 450 | 275 | 265 | 255 | 18 | - | - |
35 | - | > 510 | 305 | 295 | 285 | 17 | 一 | - |
45 | - | 2590 | 335 | 325 | 315 | 14 | - | - |
20Mn | —• | > 450 | 275 | 265 | 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 | 610〜770 | 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 | 710〜880 | 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 |
Izakhiwo zemishini yamapayipi ensimbi ye-alloy
NO | Ibanga | Isimiso esinconyiwe sokwelashwa kokushisa | Izakhiwo ze-tensile | Ipayipi lensimbi eline-annealed noma izinga eliphezulu lokushisa lokushisa Isimo sokulethwa Ubulukhuni be-Brinell HBW | ||||||
Ukucisha (normalizing) | Ukuthuthumela | Yield StrengthMPa | I-Tensile Strength MPa | Ukwelula ngemva kokuphuka kwe-A% | ||||||
izinga lokushisa | Ukupholisa | Izinga lokushisa | Ukupholisa | |||||||
Okokuqala | Okwesibili | hhayi ngaphansi kuka | akukho okukhulu kune | |||||||
1 | 40Mn2 | 840 | Amanzi, amafutha | 540 | Amanzi, amafutha | 885 | 735 | 12 | 217 | |
2 | 45Mn2 | 840 | Amanzi, amafutha | 550 | Amanzi, amafutha | 885 | 735 | 10 | 217 | |
3 | 27SiMn | 920 | Amanzi | 450 | Amanzi, amafutha | 980 | 835 | 12 | 217 | |
4 | 40MnBc | 850 | amafutha | 500 | Amanzi, amafutha | 980 | 785 | 10 | 207 | |
5 | 45MnBc | 840 | amafutha | 500 | Amanzi, amafutha | 1 030 | 835 | 9 | 217 | |
6 | 20Mn2Bc'f | 880 | amafutha | 200 | Amanzi, umoya | 980 | 785 | 10 | 187 | |
7 | 20CrdJ | 880 | 800 | Amanzi, amafutha | 200 | Amanzi, umoya | 835 | 540 | 10 | 179 |
785 | 490 | 10 | 179 | |||||||
8 | 30Kr | 860 | amafutha | 500 | Amanzi, amafutha | 885 | 685 | 11 | 187 | |
9 | 35Kr | 860 | amafutha | 500 | Amanzi, amafutha | 930 | 735 | 11 | 207 | |
10 | 40Kr | 850 | amafutha | 520 | Amanzi, amafutha | 980 | 785 | 9 | 207 | |
11 | 45Kr | 840 | amafutha | 520 | Amanzi, amafutha | 1 030 | 835 | 9 | 217 | |
12 | 50Cr | 830 | amafutha | 520 | Amanzi, amafutha | 1 080 | 930 | 9 | 229 | |
13 | 38CrSi | 900 | amafutha | 600 | Amanzi, amafutha | 980 | 835 | 12 | 255 | |
14 | 20CrModJ | 880 | Amanzi, amafutha | 500 | Amanzi, amafutha | 885 | 685 | 11 | 197 | |
845 | 635 | 12 | 197 | |||||||
15 | 35CrMo | 850 | amafutha | 550 | Amanzi, amafutha | 980 | 835 | 12 | 229 | |
16 | 42CrMo | 850 | amafutha | 560 | Amanzi, amafutha | 1 080 | 930 | 12 | 217 | |
17 | 38CrMoAld | 940 | Amanzi, amafutha | 640 | Amanzi, amafutha | 980 | 835 | 12 | 229 | |
930 | 785 | 14 | 229 | |||||||
18 | 50CrVA | 860 | amafutha | 500 | Amanzi, amafutha | 1 275 | 1 130 | 10 | 255 | |
19 | 2OCrMn | 850 | amafutha | 200 | Amanzi, umoya | 930 | 735 | 10 | 187 | |
20 | 20CrMnSif | 880 | amafutha | 480 | Amanzi, amafutha | 785 | 635 | 12 | 207 | |
21 | 3OCrMnSif | 880 | amafutha | 520 | Amanzi, amafutha | 1 080 | 885 | 8 | 229 | |
980 | 835 | 10 | 229 | |||||||
22 | 35CrMnSiA£ | 880 | amafutha | 230 | Amanzi, umoya | 1 620 | 9 | 229 | ||
23 | 20CrMnTie-f | 880 | 870 | amafutha | 200 | Amanzi, umoya | 1 080 | 835 | 10 | 217 |
24 | 30CrMnTie*f | 880 | 850 | amafutha | 200 | Amanzi, umoya | 1 470 | 9 | 229 | |
25 | 12CrNi2 | 860 | 780 | Amanzi, amafutha | 200 | Amanzi, umoya | 785 | 590 | 12 | 207 |
26 | 12CrNi3 | 860 | 780 | amafutha | 200 | Amanzi, umoya | 930 | 685 | 11 | 217 |
27 | 12Cr2Ni4 | 860 | 780 | amafutha | 200 | Amanzi, umoya | 1 080 | 835 | 10 | 269 |
28 | 40CrNiMoA | 850 | —- | amafutha | 600 | Amanzi, umoya | 980 | 835 | 12 | 269 |
29 | 45CrNiMoVA | 860 | - | amafutha | 460 | amafutha | 1 470 | 1 325 | 7 | 269 |
a. Ukulungiswa okuvumelekile kobubanzi bokushisa kokwelashwa okusohlwini lwethebula: ukucisha ± 15 ℃, ukushisa okuphansi kokushisa ± 20 ℃, ukushisa okuphezulu kwenhlabathi 50 ℃.b. Esivivinyweni sokuqina, amasampula aguquguqukayo noma amalongi angathathwa. Esimeni sokungavumelani, isampula ye-longitudinal isetshenziswa njengesisekelo sokulamula.c. Insimbi equkethe i-boron ingenziwa ibe yijwayelekile ngaphambi kokucisha, futhi izinga lokushisa elivamile akufanele libe ngaphezu kwezinga layo lokushisa lokucisha.d. Ukulethwa ngokuya ngeqoqo ledatha elicaciswe umfakisicelo. Lapho lowo odingayo engakacacisi, ukulethwa kungenziwa ngokuya nganoma iyiphi idatha. e. Ukucinywa kokuqala kwensimbi ye-titanium nge-Ming Meng kungathathelwa indawo ngokujwayelekile. f. I-Isothermal quenching ku-280 C ~320 C. g. Esivivinyweni sokuqina, uma i-Rel ingenakulinganiswa, i-Rp0.2 ingalinganiswa esikhundleni se-Rel. |
Isidingo Sokuhlola
Ukwakheka kwamakhemikhali:
Ukwelula,Ukuqina,Ukwethuka,Isikwashi,Ukugoba,Ukuhlolwa kwe-Ultrasonic,I-Eddy current,ukutholwa,Ukutholwa kokuvuza,Amathafa