Qib thiab Standard
Qib Analysis:
- S460: Qhov tsawg kawg nkaus tawm lub zog yog 460MPa thaum lub thickness tsawg dua los yog sib npaug rau 50mm.
- QL1: Quenched thiab tempered lub xeev (quenching + tempering) nrog qis - qhov kub thiab txias yuav tsum tau ntawm -50℃.
- Z35: Qhov kev hloov pauv ntawm cheeb tsam nyob rau hauv cov kev taw qhia tuab yog ntau dua lossis sib npaug li 35%, uas yog qib siab tshaj plaws rau kev tiv thaiv lamellar tearing.
- Cov Qauv Txheej Txheem: EN 10025-6 (tus qauv European), sib haum rau lub teb chaws tus qauv Q460F.
Tshuaj muaj pes tsawg leeg
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S460 QL 1Tshuaj muaj pes tsawg leeg |
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Qib |
Cov ntsiab lus Max (%) |
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C |
Si |
Mn |
P |
S |
N |
B |
Cr |
|
|
S460 QL 1 |
0.20 |
0.80 |
1.70 |
0.020-0.025 |
0.010-0.015 |
0.015 |
0.005 |
1.50 |
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Cu |
Mo |
Nb |
Ni |
Ti |
V |
Zr |
|
|
|
0.50 |
0.70 |
0.06 |
2.0 |
0.05 |
0.12 |
0.15 |
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Mechanical Properties
Lub zog thiab Plasticity:
- Tensile zog: 550-720MPa (rau thickness Tsawg dua los yog sib npaug rau 50mm).
- Elongation tom qab tawg: Ntau dua lossis sib npaug li 17%.
Tsawg-kub toughness: Lub zog cuam tshuam ntawm -50℃Ntau dua lossis sib npaug rau 30J.
Z-kev taw qhia kev ua haujlwm: Txo thaj tsam ntau dua lossis sib npaug li 35% (Z35 qib).
Txheej txheem ntau lawm
Steelmaking: Hluav taws xob rauv + LF refining, nrog cov ntsiab lus sulfur tswj kom tsawg dua lossis sib npaug li 0.005%.
Rolling: Tswj dov thiab tswj kev ua kom txias kom zoo dua cov qauv.
Quenching thiab tempering:
- Quenching: Dej txias / roj txias kom tau txais cov qauv martensitic.
- Tempering: Tempering ntawm 500-650℃kom sib npaug zog thiab toughness.
Kev tshuaj xyuas:Ultrasonic flaw detection (peb soj ntsuam), Z-kev taw qhia tensile xeem.
Daim ntawv thov teb
- Ib puag ncig huab cua: Cov khoom siv Polar, qis- cov hlab ntsha kub siab (ua haujlwm ntawm -50℃).
- Heavy-cov haujlwm ua haujlwm: cov tshuab tsuas, cov chaw ua haujlwm sab nrauv (yuav tsum tau tiv thaiv lamellar tearing).
- Cov kev xav tau tshwj xeeb: Cov khoom tseem ceeb -cov khoom muaj nyob hauv nuclear fais fab thiab cua fais fab kev lag luam.
Cov yam ntxwv tseem ceeb ntawm cov khoom
- Z35 Kev Ua Haujlwm: Tear resistance qib nyob rau hauv cov kev taw qhia tuab (txo thaj tsam ntau dua lossis sib npaug li 35%), haum rau cov khoom siv welded.
- Cov txheej txheem txheej txheem: Ua raws li EN 10025-6; quenched thiab tempered (quenching + tempering) ua kom lub zog siab thiab qis-kub toughness.
- Daim Ntawv Thov Fields: Cov choj, cov tshuab mining, nkoj, thiab lwm yam xwm txheej uas yuav tsum tau muaj zog thiab huab cua tsis kam.
Qhov sib txawv piv nrog Z25
| Parameter | S460QL1Z25 | S460QL1Z35 |
|---|---|---|
| Cov ntsiab lus sulfur | Tsawg dua lossis sib npaug li 0.007% | Tsawg dua lossis sib npaug li 0.005% |
| Z-kev taw qhia Txo ntawm Cheeb Tsam | Ntau dua lossis sib npaug li 25% | Ntau dua lossis sib npaug li 35% |
| Siv tau Scenarios | Tsis tu ncua siab -lub zog vuam | Ultra- cov kev cai tsim kua muag nruj |
Yog tias koj xav paub ntxiv txog GNEE cov khoom, koj tuaj yeem xa email raualloy@gneesteelgroup.com. Peb zoo siab tshaj los pab koj.
Tib neeg kuj nug
S460 cov khoom sib npaug yog dab tsi?
S460 yog lub siab - lub zog steel nrog qhov tsawg kawg nkaus tawm lub zog ntawm 460 MPa. Tus "S" qhia txog cov qauv, thaum "460" qhia nws lub zog tawm los. Cov qib sib npaug suav nrogA572 Qib 65, SM570, SM520, SS540.
Qhov txawv ntawm S460 thiab S355 yog dab tsi?
Piv txwv li,S460 steels yog 30% muaj zog dua S355 steelsTxawm li cas los xij, tus nqi them nqi tsuas yog kwv yees li 10%. Cov txiaj ntsig ntxiv ntawm kev siv cov ntu me me yog qhov yuav tsum tau siv vuam thiab pleev xim, nrog rau cov nqi tsheb thauj mus los qis dua.
Lub zog ntawm S460 yog dab tsi?
Yield zog S460 steel:Qhov siab tshaj tawm lub zog yog 460 MPa. S690 steel: yam tsawg kawg nkaus yield zog yog 690 MPa. Qhov tseem ceeb: S690 steel muaj lub zog ntau dua, tso cai rau kev siv cov khoom siv tsawg dua thiab cov qauv sib dua. Tensile Strength S460 steel: Tensile zog feem ntau 510 txog 620 MPa.
