2019 Zoo Tuam Tshoj S235 Cov Qauv Kub Rolled Seamless Carbon Steel Yeeb Nkab
Peb cov chaw tsim khoom zoo thiab kev tswj xyuas zoo tshaj plaws thoob plaws txhua theem ntawm kev tsim khoom ua rau peb lav tag nrho cov neeg yuav khoom txaus siab rauCarbon Seamless Steel Yeeb Nkab, structural steel yeeb nkab, structural yeeb nkab, Tuam Tshoj Seamless Steel Yeeb Nkab, Peb lub tuam txhab sov siab caw cov neeg siv khoom hauv tsev thiab txawv teb chaws tuaj thiab sib tham ua lag luam nrog peb. Cia peb koom tes los tsim kom muaj qhov ci ntsa iab tag kis! Peb tab tom tos ntsoov yuav koom tes nrog koj ua siab dawb kom ua tiav qhov xwm txheej yeej-yeej. Peb cog lus tias yuav sim peb qhov zoo tshaj plaws los muab kev pabcuam zoo thiab muaj txiaj ntsig zoo rau koj.
Txheej txheem cej luam
Daim ntawv thov
Nws yog siv los ua Carbon Structural Steel, Alloy Structural Steel thiab mechanical structures.
Qib tseem ceeb
Qib Ntawm Carbon Steel Qauv: 10,20,35,45,Q345,Q460,Q490,Q620,, thiab lwm yam
Qib ntawm Alloy Structural Steel: 42CrMo, 35CrMo, thiab lwm yam
Chemical Component
Qib Steel | Qib zoo | Tshuaj muaj pes tsawg leeg | ||||||||||||||
C | Si | Mn | P | S | Nb | V | Ti | Cr | Ni | Cu | Nd | Mo | B | Als" | ||
tsis muaj ntau dua | tsis tsawg dua | |||||||||||||||
q345 ua | A | 0.20 ib | 0.50 ib | 1.70 ib | 0.035 ib | 0.035 ib | 0.30 Nws | 0.50 ib | 0.20 ib | 0.012 ib | 0.10 | —— | — | |||
B | 0.035 ib | 0.035 ib | ||||||||||||||
C | 0.030 Nws | 0.030 Nws | 0.07 ib | 0.15 | 0.20 ib | 0.015 ib | ||||||||||
D | 0.18 | 0.030 Nws | 0.025 ib | |||||||||||||
E | 0.025 ib | 0.020 ib | ||||||||||||||
q390 ua | A | 0.20 ib | 0.50 ib | 1.70 ib | 0.035 ib | 0.035 ib | 0.07 ib | 0.20 ib | 0.20 ib | 0.3 | 0.50 ib | 0.20 ib | 0.015 ib | 0.10 | — | — |
B | 0.035 ib | 0.035 ib | ||||||||||||||
C | 0.030 Nws | 0.030 Nws | 0,015 ib | |||||||||||||
D | 0.030 Nws | 0.025 ib | ||||||||||||||
E | 0.025 ib | 0.020 ib | ||||||||||||||
qw 42o | A | 0.20 ib | 0.50 ib | 1.70 ib | 0.035 ib | 0.035 ib | 0.07 ib | 0.2 | 0.20 ib | 0.30 Nws | 0.80 ib | 0.20 ib | 0.015 ib | 0.20 ib | —— | —— |
B | 0.035 ib | 0.035 ib | ||||||||||||||
C | 0.030 Nws | 0.030 Nws | 0.015 ib | |||||||||||||
D | 0.030 Nws | 0.025 ib | ||||||||||||||
E | 0.025 ib | 0.020 ib | ||||||||||||||
qw 46o | C | 0.20 ib | 0.60 ib | 1.80 ib | 0.030 Nws | 0.030 Nws | 0.11 | 0.20 ib | 0.20 ib | 0.30 Nws | 0.80 ib | 0.20 ib | 0.015 ib | 0.20 ib | 0.005 ib | 0.015 ib |
D | 0.030 Nws | 0.025 ib | ||||||||||||||
E | 0.025 ib | 0.020 ib | ||||||||||||||
q500 ua | C | 0j 8 | 0.60 ib | 1.80 ib | 0.025 ib | 0.020 ib | 0.11 | 0.20 ib | 0.20 ib | 0.60 ib | 0.80 ib | 0.20 ib | 0.015 ib | 0.20 ib | 0.005 ib | 0.015 ib |
D | 0.025 ib | 0.015 ib | ||||||||||||||
E | 0.020 ib | 0.010 ib | ||||||||||||||
q550 ua | C | 0.18 | 0.60 ib | 2.00 Nws | 0.025 ib | 0,020 ua | 0.11 | 0.20 ib | 0.20 ib | 0.80 ib | 0.80 ib | 0.20 ib | 0.015 ib | 0.30 Nws | 0.005 ib | 0.015 ib |
D | 0.025 ib | 0,015 ib | ||||||||||||||
E | 0.020 ib | 0.010 ib | ||||||||||||||
qw 62o | C | 0.18 | 0.60 ib | 2.00 Nws | 0.025 ib | 0.020 ib | 0.11 | 0.20 ib | 0.20 ib | 1.00 Nws | 0.80 ib | 0.20 ib | 0.015 ib | 0.30 Nws | 0.005 ib | 0.015 ib |
D | 0.025 ib | 0.015 ib | ||||||||||||||
E | 0.020 ib | 0.010 ib | ||||||||||||||
a.Ntxiv rau Q345A thiab Q345B qib, cov hlau yuav tsum muaj tsawg kawg yog ib qho ntawm cov khoom ua kom zoo zoo Al, Nb, V, thiab Ti. Raws li kev xav tau, tus neeg muag khoom tuaj yeem ntxiv ib lossis ntau cov khoom ua kom zoo zoo. Tus nqi siab tshaj plaws yuav tsum yog raws li tau teev tseg hauv cov lus. Thaum ua ke, Nb + V + Ti tsis ntau tshaj 0.22%b. Rau Q345, Q390, Q420 thiab Q46O qib, Mo + Cr tsis ntau dua 0.30%c. Thaum Cr thiab Ni ntawm txhua qib yog siv los ua cov khoom seem, cov ntsiab lus ntawm Cr thiab Ni yuav tsum tsis txhob siab dua 0.30%; thaum nws tsim nyog ntxiv, cov ntsiab lus yuav tsum ua kom tau raws li qhov yuav tsum tau ua hauv lub rooj lossis txiav txim siab los ntawm tus neeg muag khoom thiab tus neeg yuav khoom los ntawm kev sib tham.d. Yog tias tus neeg muag khoom tuaj yeem ua kom ntseeg tau tias cov ntsiab lus nitrogen ua tau raws li qhov yuav tsum tau ua hauv lub rooj, kev tshuaj xyuas cov ntsiab lus nitrogen yuav tsis ua. Yog tias Al, Nb, V, Ti thiab lwm yam hlau alloy nrog nitrogen fixation ntxiv rau cov hlau, cov ntsiab lus nitrogen tsis txwv. Cov ntsiab lus ntawm nitrogen fixation yuav tsum tau teev nyob rau hauv daim ntawv pov thawj zoo.e. Thaum siv tag nrho txhuas, tag nrho cov ntsiab lus txhuas Alt ≥ 0020%. |
Qib | Carbon sib npaug CEV (mass feem) /% | |||||
Nominal phab ntsa thickness s≤ 16mm | Nominal phab ntsa thickness S2> 16 mm ~ 30 mm | Nominal phab ntsa thickness S> 30mm | ||||
Kub dov los yog normalized normalized | Quenching + tempering | Kub dov los yog normalized | Quenching + tempering | Kub dov los yog normalized | Quenching + tempering | |
q345 ua | <0.45 | — | <0.47 | — | <0.48 | Ib |
q390 ua | <0.46 | Ib | wb 0.48 | — | <0.49 | — |
q420 ua | <0.48 | Ib | <0.50 | <0.48 | <0.52 | <0,48 |
q460 ua | <0.53 | <0.48 | wb 0,55 | <0.50 | <0.55 | wb 0.50 |
q500 ua | Ib | <0.48 | Ib | <0.50 | Ib | wb 0.50 |
q550 ua | — | <0.48 | . ib | <0.50 | Ib | <0.50 |
qw 62o | — | <0.50 | — | <0.52 | — | wb 0,52 |
q690 ua | — | <0.50 | — | <0.52 | — | wb 0,52 |
Mechanical Property
Mechanical zog ntawm high-quality carbon steel structural steel thiab low-alloy high-strength structural steel kav
Qib | Qib zoo | Yield zog | Tsawg tawm los zog | Elongation tom qab tawg | Impact test | |||
Nominal phab ntsa thickness | kub | Absorb zog | ||||||
<16 hli | > 16 hli ~ | 〉 30 mm | ||||||
30 mm | ||||||||
tsis tsawg dua | tsis tsawg dua | |||||||
10 | — | > 335 | 205 | 195 | 185 | 24 | — | — |
15 | — | > 375 | 225 | 215 | 205 | 22 | — | Ib |
20 | —— | > 410 | 245 | 235 | 225 | 20 | — | — |
25 | — | > 450 | 275 | 265 | 255 | 18 | — | — |
35 | — | > 510 | 305 | 295 | 285 | 17 | Ib | — |
45 | — | 2590 ib | 335 | 325 | 315 | 14 | — | — |
20 Mn | —• | > 450 | 275 | 265 | 255 | 20 | — | Ib |
25 Mn | — | > 490 | 295 | 285 | 275 | 18 | — | — |
q345 ua | A | 470-630 : kuv | 345 | 325 | 295 | 20 | — | Ib |
B | 4 ~ 20 | 34 | ||||||
C | 21 | 0 | ||||||
D | -20 | |||||||
E | -40 | 27 | ||||||
qw 39o | A | 490-650 : kuv | 390 | 370 | 350 | 18 | ||
B | 20 | 34 | ||||||
C | 19 | 0 | ||||||
D | -20 | |||||||
E | -40 | 27 | ||||||
qw 42o | A | 520-680 Nws | 420 | 400 | 380 | 18 | ||
B | 20 | 34 | ||||||
C | 19 | 0 | ||||||
D | -20 | |||||||
E | -40 | 27 | ||||||
qw 46o | C | 550—720 | 460 | 440 | 420 | 17 | 0 | 34 |
D | -20 | |||||||
E | -40 | 27 | ||||||
q500 ua | C | 610-770 Ib | 500 | 480 | 440 | 17 | 0 | 55 |
D | -20 | 47 | ||||||
E | -40 | 31 | ||||||
q550 ua | C | 670-830 Nws | 550 | 530 | 490 ib | 16 | 0 | 55 |
D | -20 | 47 | ||||||
E | -40 | 31 | ||||||
qw 62o | C | 710-880 Ib | 620 | 590 ua | 550 | 15 | 0 | 55 |
D | -20 | 47 | ||||||
E | -40 | 31 | ||||||
q690 ua | C | 770-94 Ib. | 690 ib | 660 | 620 | 14 | 0 | 55 |
D | -20 | 47 | ||||||
E | -40 | 31 |
Mechanical zog ntawm alloy steel kav
NO | Qib | Pom zoo kev kho cua sov | Tensile zog | Annealed los yog kub tempered steel yeeb nkab xa khoom mob Brinell hardness HBW | ||||||
Quenching (normalizing) | Tempering | Yield StrengthMPa | Tensile zog MPa | Elongation tom qab tawg A% | ||||||
kub | Coolant | Kub | Coolant | |||||||
Thawj | Thib ob | tsis tsawg dua | tsis muaj ntau dua | |||||||
1 | 40mn 2 | 840 ua | Dej, roj | 540 | Dej, roj | 885 ib | 735 ib | 12 | 217 | |
2 | 45mn 2 | 840 ua | Dej, roj | 550 | Dej, roj | 885 ib | 735 ib | 10 | 217 | |
3 | 27 Sib | 9 20 | Dej | 450 | Dej, roj | 980 ua | 835 ib | 12 | 217 | |
4 | 40 MnBc | 850 | roj | 500 | Dej, roj | 980 ua | 785 ib | 10 | 207 | |
5 | 45 Mnbc | 840 ua | roj | 500 | Dej, roj | 1 030 | 835 ib | 9 | 217 | |
6 | 20 Mn2bc'f | 880 ua | roj | 200 | Dej, cua | 980 ua | 785 ib | 10 | 187 | |
7 | 20 CrdJ | 880 ua | 800 | Dej, roj | 200 | Dej, cua | 835 ib | 540 | 10 | 179 |
785 ib | 490 ib | 10 | 179 | |||||||
8 | 30 Cr | 860 ua | roj | 500 | Dej, roj | 885 ib | 685 ib | 11 | 187 | |
9 | 35cr ua | 860 ua | roj | 500 | Dej, roj | 930 ua | 735 ib | 11 | 207 | |
10 | 40 Cr | 850 | roj | 520 | Dej, roj | 980 ua | 785 ib | 9 | 207 | |
11 | 45cr ua | 840 ua | roj | 520 | Dej, roj | 1 030 | 835 ib | 9 | 217 | |
12 | 50 Cr | 8 30 | roj | 520 | Dej, roj | 1 080 | 930 ua | 9 | 229 | |
13 | 38cr ib | 900 | roj | 600 | Dej, roj | 980 ua | 835 ib | 12 | 255 | |
14 | 20CrModJ | 880 ua | Dej, roj | 500 | Dej, roj | 885 ib | 685 ib | 11 | 197 | |
845 ib | 635 ib | 12 | 197 | |||||||
15 | 35CrMo | 850 | roj | 550 | Dej, roj | 980 ua | 835 ib | 12 | 229 | |
16 | 42CrMo | 850 | roj | 560 | Dej, roj | 1 080 | 930 ua | 12 | 217 | |
17 | 38CrMoAld | 940 ua | Dej, roj | 640 | Dej, roj | 980 ua | 835 ib | 12 | 229 | |
930 ua | 785 ib | 14 | 229 | |||||||
18 | 50 CrVA | 860 ua | roj | 500 | Dej, roj | 1 275 | 1 130 | 10 | 255 | |
19 | 2 OCrMn | 850 | roj | 200 | Dej, cua | 930 ua | 735 ib | 10 | 187 | |
20 | 20CrMnSif | 880 ua | roj | 480 | Dej, roj | 785 ib | 635 ib | 12 | 207 | |
21 | 3OCrMnSif | 880 ua | roj | 520 | Dej, roj | 1 080 | 885 ib | 8 | 229 | |
980 ua | 835 ib | 10 | 229 | |||||||
22 | 35CrMnSiA£ | 880 ua | roj | 230 | Dej, cua | 1 620 | 9 | 229 | ||
23 | 20CrMnTie-f | 880 ua | 870 ib | roj | 200 | Dej, cua | 1 080 | 835 ib | 10 | 217 |
24 | 30CrMnTie*f | 880 ua | 850 | roj | 200 | Dej, cua | 1470 ib | 9 | 229 | |
25 | 12 CrNi2 | 860 ua | 780 ua | Dej, roj | 200 | Dej, cua | 785 ib | 590 ua | 12 | 207 |
26 | 12 CrNi3 | 860 ua | 780 ua | roj | 200 | Dej, cua | 930 ua | 685 ib | 11 | 217 |
27 | 12 Cr2Ni4 | 860 ua | 780 ua | roj | 200 | Dej, cua | 1 080 | 835 ib | 10 | 269 |
28 | 40CrNiMoA | 850 | —— | roj | 600 | Dej, cua | 980 ua | 835 ib | 12 | 269 |
29 | 45CrNiMoVA | 860 ua | — | roj | 460 | roj | 1470 ib | 1325 ib | 7 | 269 |
a. Kev hloov kho qhov kub thiab txias tau teev nyob rau hauv lub rooj: quenching ± 15 ℃, tsis kub tempering ± 20 ℃, kub tempering av 50 ℃.b. Hauv kev ntsuas tensile, cov qauv transverse lossis longitudinal tuaj yeem coj mus kuaj. Nyob rau hauv cov ntaub ntawv ntawm kev tsis pom zoo, tus qauv longitudinal yog siv los ua lub hauv paus rau kev txiav txim.c. Cov hlau uas muaj boron tuaj yeem ua rau normalize ua ntej quenching, thiab qhov normalizing kub yuav tsum tsis txhob siab tshaj nws quenching kub.d. Kev xa khoom raws li cov ntaub ntawv teev tseg los ntawm tus neeg thov. Thaum tus neeg thov tsis tau teev tseg, kev xa khoom tuaj yeem ua raws li ib qho ntawm cov ntaub ntawv. e. Thawj quenching ntawm titanium hlau nrog Ming Meng tuaj yeem hloov tau los ntawm normalizing. f. Isothermal quenching ntawm 280 C ~ 320 C. g. Hauv kev ntsuas tensile, yog tias ntsuas tsis tuaj yeem ntsuas, Rp0.2 tuaj yeem ntsuas tsis yog Rel. |
Kev Xeem Xeem
Tshuaj muaj pes tsawg leeg:
Stretch, Hardness, Shock, Squash, dabtsi yog khoov, Ultrasonic kuaj, Eddy tam sim no, kuaj pom, leak detection, Galvanized