Pabrik Murah China Bahan Konstruksi Tabung Baja Karbon Pipa Seamless
Ringkesan
Kita wis setya nawakake layanan purchasing siji-mandeg sing gampang, irit wektu lan dhuwit kanggo konsumen kanggo Pipa Baja Industri sing digunakake kanggo konstruksi, pembangkit listrik, industri minyak lan gas, pembangkit listrik lan liya-liyane, Kita ngajak loro-lorone. sampeyan lan perusahaan sampeyan bakal maju bebarengan karo kita lan nuduhake jangka panjang sing sregep ing sektor global. Kualitas apik, rega sing kompetitif, pangiriman tepat waktu lan layanan sing bisa dipercaya bisa dijamin. Kanggo pitakon luwih lengkap, aja ragu-ragu hubungi kita. Matur nuwun - Dhukungan sampeyan terus-terusan menehi inspirasi.
Aplikasi
Utamane Digunakake Kanggo Nggawe Baja Struktural Karbon, Baja Struktural Paduan lan struktur mekanik.
Kelas Utama
Kelas Baja Struktural Karbon: 10,20,35, 45, Q345, Q460, Q490, Q620,, etc
Kelas Baja Struktural Paduan: 42CrMo, 35CrMo, etc
Komponen Kimia
Kelas Baja | Tingkat kualitas | Komposisi kimia | ||||||||||||||
C | Si | Mn | P | S | Nb | V | Ti | Cr | Ni | Cu | Nd | Mo | B | Als" | ||
ora luwih saka | ora kurang saka | |||||||||||||||
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.Saliyane kelas Q345A lan Q345B, baja kudu ngemot paling ora siji unsur gandum olahan Al, Nb, V, lan Ti. Miturut kabutuhan, supplier bisa nambah siji utawa luwih unsur gandum olahan. Nilai maksimum kudu kaya sing kasebut ing tabel. Yen digabungake, Nb + V + Ti ora luwih saka 0,22%b. Kanggo kelas Q345, Q390, Q420 lan Q46O, Mo + Cr ora luwih saka 0,30%c. Nalika Cr lan Ni saben kelas digunakake minangka unsur residual, isi Cr lan Ni ngirim ora luwih saka 0,30%; yen perlu ditambahake, isi kasebut kudu nyukupi syarat ing tabel utawa ditemtokake dening supplier lan panuku liwat konsultasi.d. Yen supplier bisa mesthekake yen isi nitrogen meets syarat ing tabel, analisis isi nitrogen bisa uga ora dileksanakake. Yen Al, Nb, V, Ti lan unsur paduan liyane kanthi fiksasi nitrogen ditambahake ing baja, isi nitrogen ora diwatesi. Isi fiksasi nitrogen kudu ditemtokake ing sertifikat kualitas.e. Nalika nggunakake aluminium lengkap, total isi aluminium Alt ≥ 0020%. |
sasmita | CEV setara karbon (fraksi massa) /% | |||||
Kekandelan tembok nominal s≤ 16mm | Ketebalan tembok nominal S2>16 mm~30 mm | Ketebalan tembok nominal S>30mm | ||||
Hot mbalek utawa normalisasi normal | Quenching + tempering | Hot mbalek utawa normal | Quenching + tempering | Hot mbalek utawa normal | 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 | .一 | <0.50 | 一 | <0.50 |
Q62O | — | <0.50 | — | <0.52 | — | W0.52 |
Q690 | — | <0.50 | — | <0.52 | — | W0.52 |
Properti Mekanik
Sifat mekanik saka baja struktur baja karbon berkualitas tinggi lan pipa baja struktural paduan rendah kekuatan dhuwur
sasmita | Tingkat kualitas | Kekuwatan Ngasilake | Ngurangi kekuwatan ngasilake | Elongation sawise break | Tes dampak | |||
Kekandelan tembok nominal | suhu | Nyerep energi | ||||||
<16 mm | > 16 mm〜 | 〉30 mm | ||||||
30 mm | ||||||||
ora kurang saka | ora kurang saka | |||||||
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 | — | — |
20 Mn | —• | > 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 |
Sifat mekanik pipa baja paduan
NO | sasmita | Rezim perawatan panas sing disaranake | Sifat tarik | Annealed utawa suhu dhuwur tempered pipe baja Delivery kondisi Brinell atose HBW | ||||||
Quenching (normalisasi) | Tempering | Kekuwatan Ngasilake MPa | Kekuwatan Tarik MPa | Elongation sawise break A% | ||||||
suhu | Coolant | Suhu | Coolant | |||||||
Frirst | Kapindho | ora kurang saka | ora luwih saka | |||||||
1 | 40Mn2 | 840 | Banyu, lenga | 540 | Banyu, lenga | 885 | 735 | 12 | 217 | |
2 | 45Mn2 | 840 | Banyu, lenga | 550 | Banyu, lenga | 885 | 735 | 10 | 217 | |
3 | 27SiMn | 920 | banyu | 450 | Banyu, lenga | 980 | 835 | 12 | 217 | |
4 | 40MnBc | 850 | lenga | 500 | Banyu, lenga | 980 | 785 | 10 | 207 | |
5 | 45MnBc | 840 | lenga | 500 | Banyu, lenga | 1 030 | 835 | 9 | 217 | |
6 | 20Mn2Bc'f | 880 | lenga | 200 | Banyu, hawa | 980 | 785 | 10 | 187 | |
7 | 20 CrdJ | 880 | 800 | Banyu, lenga | 200 | Banyu, hawa | 835 | 540 | 10 | 179 |
785 | 490 | 10 | 179 | |||||||
8 | 30Cr | 860 | lenga | 500 | Banyu, lenga | 885 | 685 | 11 | 187 | |
9 | 35Cr | 860 | lenga | 500 | Banyu, lenga | 930 | 735 | 11 | 207 | |
10 | 40Cr | 850 | lenga | 520 | Banyu, lenga | 980 | 785 | 9 | 207 | |
11 | 45Cr | 840 | lenga | 520 | Banyu, lenga | 1 030 | 835 | 9 | 217 | |
12 | 50Cr | 830 | lenga | 520 | Banyu, lenga | 1 080 | 930 | 9 | 229 | |
13 | 38CrSi | 900 | lenga | 600 | Banyu, lenga | 980 | 835 | 12 | 255 | |
14 | 20CrModJ | 880 | Banyu, lenga | 500 | Banyu, lenga | 885 | 685 | 11 | 197 | |
845 | 635 | 12 | 197 | |||||||
15 | 35CrMo | 850 | lenga | 550 | Banyu, lenga | 980 | 835 | 12 | 229 | |
16 | 42CrMo | 850 | lenga | 560 | Banyu, lenga | 1 080 | 930 | 12 | 217 | |
17 | 38CrMoAld | 940 | Banyu, lenga | 640 | Banyu, lenga | 980 | 835 | 12 | 229 | |
930 | 785 | 14 | 229 | |||||||
18 | 50CrVA | 860 | lenga | 500 | Banyu, lenga | 1 275 | 1 130 | 10 | 255 | |
19 | 2OCrMn | 850 | lenga | 200 | Banyu, hawa | 930 | 735 | 10 | 187 | |
20 | 20CrMnSif | 880 | lenga | 480 | Banyu, lenga | 785 | 635 | 12 | 207 | |
21 | 3OCrMnSif | 880 | lenga | 520 | Banyu, lenga | 1 080 | 885 | 8 | 229 | |
980 | 835 | 10 | 229 | |||||||
22 | 35CrMnSiA£ | 880 | lenga | 230 | Banyu, hawa | 1 620 | 9 | 229 | ||
23 | 20CrMnTie-f | 880 | 870 | lenga | 200 | Banyu, hawa | 1 080 | 835 | 10 | 217 |
24 | 30CrMnTie*f | 880 | 850 | lenga | 200 | Banyu, hawa | 1 470 | 9 | 229 | |
25 | 12CrNi2 | 860 | 780 | Banyu, lenga | 200 | Banyu, hawa | 785 | 590 | 12 | 207 |
26 | 12CrNi3 | 860 | 780 | lenga | 200 | Banyu, hawa | 930 | 685 | 11 | 217 |
27 | 12Cr2Ni4 | 860 | 780 | lenga | 200 | Banyu, hawa | 1 080 | 835 | 10 | 269 |
28 | 40CrNiMoA | 850 | —— | lenga | 600 | Banyu, hawa | 980 | 835 | 12 | 269 |
29 | 45CrNiMoVA | 860 | — | lenga | 460 | lenga | 1 470 | 1 325 | 7 | 269 |
a. Range imbuhan sing diidini saka suhu perawatan panas sing kadhaptar ing tabel: quenching ± 15 ℃, tempering suhu kurang ± 20 ℃, lemah tempering suhu dhuwur 50 ℃.b. Ing tes tensile, conto transversal utawa longitudinal bisa dijupuk. Yen ora setuju, sampel longitudinal digunakake minangka basis kanggo arbitrase.c. Baja sing ngemot boron bisa dinormalisasi sadurunge quenching, lan suhu normalisasi ora kudu luwih dhuwur tinimbang suhu quenching.d. Pangiriman miturut sakumpulan data sing ditemtokake dening panyuwun. Yen panjaluk durung nemtokake, pangiriman bisa ditindakake miturut data apa wae. e. Ing quenching pisanan saka baja titanium karo Ming Meng bisa diganti dening normalizing. f. Isothermal quenching ing 280 C ~ 320 C. g. Ing test tensile, yen Rel ora bisa diukur, Rp0,2 bisa diukur tinimbang Rel. |
Syarat Test
Komposisi kimia:
Regangan, Kekerasan, Kejut, Squash, Mlengkung, Pengujian Ultrasonik, Eddy current, deteksi, Deteksi bocor, Galvanis