Zoo Tuam Tshoj ASME / API / GOST / DIN / En / JIS Seamless thiab Welded Steel Yeeb Nkab
Txheej txheem cej luam
Txhua yam peb ua yog feem ntau txuas nrog peb lub ntsiab lus "Cov neeg yuav khoom ua ntej, Cia siab rau thawj zaug, mob siab rau ib puag ncig cov khoom ntim khoom noj thiab ib puag ncig kev nyab xeeb rau High Quality Seamless thiab Welded Steel Pipe, Peb muab qhov tseeb thiab kev noj qab haus huv ua lub luag haujlwm tseem ceeb. Tam sim no peb muaj cov kws tshaj lij. Cov neeg ua lag luam thoob ntiaj teb uas kawm tiav los ntawm Asmeskas Peb tau ua koj tus khub lag luam tom ntej ua raws li txoj cai ntawm "Kev Ua Lag Luam thiab Kev Tshawb Fawb, Preciseness thiab Unity", nrog rau kev siv thev naus laus zis. core, peb lub tuam txhab txuas ntxiv tsim kho tshiab, mob siab rau muab koj cov khoom lag luam zoo tshaj plaws thiab ua tib zoo saib xyuas tom qab kev muag khoom Peb ntseeg siab tias: peb zoo tshaj plaws raws li peb tau tshwj xeeb.
Ntawm cov khoom siv seamless steel yeeb nkab, DIN1629 ST52 yog ib qho ntawm cov khoom siv feem ntau. Hauv Suav cov qauv, nws feem ntau yog raws li GB / T8162 Q345B. Ob leeg tuaj yeem hloov pauv rau ib leeg, tab sis lawv tsis sib haum. .
Nyob rau hauv cov nqe lus ntawm chemical muaj pes tsawg leeg:
DIN 1629 ST52: C: 0.17% max; P: 0.04% max; S:: 0.04% max; N: 0.009% max
GB/T 8162 Q345B: C: 0.2% max; P: 0.035% max; S:: 0.035% max; N: 0.012% max
Nws tuaj yeem pom tau tias ob qho qauv sib koom ua ke hais tias cov ntsiab lus ntawm cov khoom siv tshuaj muaj txiaj ntsig zoo ib yam.
Mechanical kev ua tau zoo:
DIN 1629 ST52: Tensile zog: 500 ~ 650Mpa; Tawm lub zog: 335 ~ 355Mpa; Elongation (longitudinal): 21% min
GB / T 8162 Q345B: Tensile zog: 470 ~ 630Mpa; Tawm zog: 295 ~ 345Mpa; Elongation (longitudinal): 20% min
Cov kev xav tau rau cov khoom siv kho tshuab ntawm ob qho tib si kuj zoo ib yam
Cov khoom kuaj:
DIN 1629 yuav tsum tau kuaj tensile, flattening test, nruj nreem kuaj, nto tshuaj ntsuam xyuas qhov ntev; Kev soj ntsuam cov khoom tiav
GB / T8162 Q345B yuav tsum tau tshuaj xyuas cov tshuaj muaj pes tsawg leeg, tensile test, hardness test, 20 ℃ cuam tshuam kev xeem, flattening xeem, dabtsi yog khoov xeem, tsis yog-kev puas tsuaj hluav taws xob kuaj
Nws tuaj yeem pom tias qhov kev sim ua haujlwm ntawm GB / T8162 Q345B pib npog DIN1629
Tolerance yuav tsum:
DIN1629 qhia:
OD kam rau ua:
OD≤100mm, ± 1% lossis ± 0.5mm
100mm OD≤200mm, ± 1%
OD 200mm, ± 1%
WT kam rau ua:
OD≤130mm: ≤2 * tus qauv WT: +15% -10%
2 * tus qauv WT <s≤4 * tus qauv WT: + 12.5% -10%
4 * tus qauv WT: ± 9%
130mm OD≤320mm: ≤0.05 * qauv WT: + 17% -12.5%
0.05 * tus qauv WT<s≤0.11 * tus qauv WT: ± 12.5%
> 0.11 * tus qauv WT: ± 10%
320mm OD≤660mm: ≤0.05 * tus qauv WT: +20% -15%
0.05 * tus qauv WT<s≤0.09 * tus qauv WT: +15% -12.5%
> 0.09 * tus qauv WT: +12.5% -10%
GB / T8162 qhia:
OD kam rau ua:
± 1% lossis ± 0.5mm rau qhov loj
WT kam rau ua:
OD≤102mm: ± 12.5% lossis ± 0.4mm rau qhov loj
OD > 102mm: WT≤0.05mm, ± 15% lossis ± 0.4mm rau qhov loj
0.05mm <WT≤0.1mm, ± 12.5% lossis ± 0.4mm rau qhov loj
WT ± 0.1 hli, + 12.5% -10%
Lub tolerances ntawm ob kuj yog roughly tib yam
Yog li ntawd, Q345B thiab ST52 tuaj yeem hloov tau rau ib leeg thaum siv hauv ib puag ncig thiab tsis muaj qhov tshwj xeeb. Thaum ib puag ncig lossis cov kev xav tau nruj dua, qhov kev sib piv yuav tsum tau ua tib zoo xav.
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 ua | 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










