Pipa baja mulus kanggo struktur (GB/T8162-2008)
Standar: GB/8162-2008 | Alloy Utawa Ora: Alloy utawa karbon |
Klompok kelas: 10,20,35, 45, Q345, Q460, Q490, Q620, 42CrMo, 35CrMo, etc | Aplikasi: Pipa struktural, pipa mekanik |
Ketebalan: 1 - 100 mm | Perawatan lumahing: Minangka kabutuhan customer |
Dhiameter njaba (Bander): 10 - 1000 mm | Teknik: Hot Rolled utawa Cold Rolled |
Dawane: dawa tetep utawa dawa acak | Perawatan panas: Annealing / Normalizing / Stress Relieving |
Wangun bagean: bunder | Pipa Khusus: Pipa Tembok Tebal |
Panggonan Asal: China | Dianggo: Konstruksi, mekanik |
Sertifikasi: ISO 9001:2008 | Tes: ECT/UT |
Utamane Digunakake Kanggo Nggawe Baja Struktural Karbon, Baja Struktural Paduan lan struktur mekanik.
Kelas Baja Struktural Karbon: 10,20,35, 45, Q345, Q460, Q490, Q620,, etc
Kelas Baja Struktural Paduan: 42CrMo, 35CrMo, etc
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 | 0.2 | 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. 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 kanggo nambah, isi kudu nyukupi syarat ing tabel utawa ditemtokake dening supplier lan panuku liwat rembugan.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 |
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. |
Panyimpangan sing diidini saka diameter njaba pipa baja
Jenis pipa baja | Toleransi sing diidini |
Pipa baja hot rolled | ± 1% D utawa ± 0,5, endi sing luwih gedhe |
Pipa baja sing ditarik kadhemen | Lemah 0,75% D utawa lemah 0,3, endi sing luwih gedhe |
Panyimpangan sing diidini saka kekandelan tembok pipa baja sing digulung panas (diperpanjang).
Jenis pipa baja | D | S/D | Toleransi sing diidini |
Pipa baja hot rolled | <102 | — | ± 12,5% S utawa ± 0,4, endi sing luwih gedhe |
> 102 | <0.05 | ± 15% S utawa ± 0,4, endi sing luwih gedhe | |
> 0,05 - 0,10 | ± 12,5% S utawa ± 0,4, endi sing luwih gedhe | ||
> 0.10 | + 12,5%S -10%S | ||
Pipa baja sing ditambahi panas | 一 | 15%S |
Panyimpangan sing diidini saka kekandelan tembok pipa baja sing ditarik (digulung).
| S | Toleransi sing diidini |
Gambar dingin (rolling) | V | + 15% S Utawa 0,15, endi sing luwih gedhe —10% S |
> 3 — 10 | + 12,5%S —10%S | |
> 10 | 10%S |
Komposisi kimia, Peregangan, Kekerasan, Kejut, Squash, Mlengkung, Pengujian Ultrasonik, Eddy saiki, deteksi, Deteksi bocor, Galvanis
Tabung Baja Seamless Kanggo Tujuan Struktural, Tabung Baja Seamless Kanggo Struktur Mekanik Ing Standar GB / 8162-2008. Ing seri tabung baja rapi, ana jenis materi disebut Q345B tabung baja mulus punika seri alloy kurang. Ing bahan paduan sing kurang, materi iki paling umum. Q345 tabung baja mulus minangka jinis bahan tabung baja. Q minangka asil saka materi iki, lan 345 minangka asil saka materi iki, yaiku watara 345. Lan nilai pametumu bakal mudhun kanthi nambah kekandelan materi. tingkat Q345A, ora impact; Q345B, punika 20 derajat impact suhu normal; kelas Q345C, punika 0 derajat impact; Q345D, punika -20 degree impact; Kelas Q345E, minus 40 derajat. Nilai impact uga beda ing suhu impact beda. Q345A, Q345B, Q345C, Q345D, Q345E. Iki minangka kelas bedane, sing nuduhake, utamane suhu impact beda.
Standar eksekusi
1. Pipa mulus kanggo struktur (GB / T8162-2018) yaiku pipa baja sing mulus kanggo struktur umum lan struktur mekanik. 2. Pipa baja mulus kanggo transportasi cairan (GB / T8163-2018) digunakake kanggo ngirim banyu, lenga, gas lan cairan liyane ing pipa baja sing mulus. 3. Tabung baja mulus kanggo boiler tekanan rendah lan medium (GB3087-2018) yaiku baja struktural karbon kualitas dhuwur sing digulung panas lan digambar kadhemen (gulungan), sing digunakake kanggo nggawe pipa uap superheated, pipa banyu sing nggodhok saka macem-macem struktur boiler tekanan rendah lan medium lan pipa uap superheated lan pipa bata arch kanggo boiler lokomotif. 4. tabung baja rapi kanggo dhuwur meksa boiler (GB5310-2018) digunakake kanggo Manufaktur dhuwur meksa lan ndhuwur meksa banyu tabung boiler lumahing dadi panas karo baja karbon kualitas dhuwur, baja campuran lan baja tahan karat tabung baja mulus.
Q345B Lembar spesifikasi tabung baja mulus | |||
spesifikasi | spesifikasi | spesifikasi | spesifikasi |
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 | 194*10 |
32*3.5 | 60*6 | 114*12 | 194*12 |
32*4 | 60*7 | 114*13 | 194*14 |
32*4.5 | 60*8 | 114*14 | 194*16 |
32*5 | 60*9 | 114*16 | 194*18 |
34*3 | 60*10 | 114*18 | 194*20 |
34*4 | 76*4.5 | 133*5 | 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 |
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 | 0.2 | 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. Saliyane kelas Q345A lan Q345B, baja kudu ngemot paling ora siji saka unsur gandum olahan Al, Nb, V, lan Ti. Miturut Kabutuhan, Supplier Bisa Nambah Siji Utawa Luwih Elemen Gandum Olahan. Nilai Maksimum Kaya sing Ditemtokake 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 Digunakna Minangka Unsur Sisa, Isi Cr Lan Ni Aja Luwih saka 0,30%; Nalika Perlu Tambah, Isi Kudu Nyukupi Persyaratan Ing Tabel Utawa Ditemtokake dening Supplier Lan Panuku Lumantar Konsultasi.D. Yen Supplier Bisa Mesthekake Yen Isi Nitrogen Methuki Persyaratan Ing Tabel, Analisis Isi Nitrogen Bisa Ora Dilaksanakake. Yen Al, Nb, V, Ti Lan Unsur Paduan Liyane Kanthi Fiksasi Nitrogen Ditambahake Ing Baja, Isi Nitrogen Ora Diwatesi. Konten Fiksasi Nitrogen Kudu Ditemtokake Ing Sertifikat Kualitas. E. Nalika Nggunakake Full Aluminium, The Total Aluminium Content Alt≥0020%. |
sasmita | CEV Setara Karbon (Pecahan Massa) /% | |||||
Kekandelan Tembok Nominal S≤ 16mm | Kekandelan Tembok Nominal S2>16 Mm〜30 mm | Ketebalan Tembok Nominal S>30mm | ||||
Hot Rolled Utawa Normalized Normalized | Quenching+Tempering | Hot Rolled Utawa Normalized | Quenching+Tempering | Hot Rolled Utawa Normalized | Quenching+Tempering | |
Q345 | <0.45 | — | <0.47 | — | <0.48 | 一 |
Properti Mekanik
Sifat Mekanik Baja Struktural Baja Karbon Berkualitas Tinggi Dan Pipa Baja Struktural Paduan Rendah Kekuatan Tinggi
sasmita | Tingkat Kualitas | Kekuwatan Ngasilake | Kekuwatan Ngasilake Ngisor | Elongation Sawise Putus | Tes Dampak | |||
Kekandelan Tembok Nominal | Suhu | Nyerep Energi | ||||||
<16 Mm | > 16 mm〜 | 〉30 mm | ||||||
30 mm | ||||||||
Ora Kurang Saka | Ora Kurang Saka | |||||||
Q345 | A | 470—630 | 345 | 325 | 295 | 20 | — | 一 |
B | 4~20 | 34 | ||||||
C | 21 | 0 | ||||||
D | -20 | |||||||
E | -40 | 27 |
Syarat Test
Komposisi Kimia: Regangan, Kekerasan, Kejut, Squash, Mlengkung, Uji Ultrasonik, Eddy Current, Deteksi, Deteksi Bocor, Galvanis