"A573 Qib 70 sib npaug" yog ib qho ntawm cov lus nug uas peb pom los ntawm engineers, procurement specialists, thiab fabricators ua hauj lwm nrog structural steel daim hlau. Yog tias koj tab tom nrhiav rau qhov no, koj yuav muaj feem cuam tshuam nrog kev sib tw, kev txiav txim siab nqi, lossis kev tsim qauv.
Cia peb tawg A573 Gr. 70 thiab nws cov peev xwm sib npaug kom meej.
1. ASTM A573 Qib 70 yog dab tsi?
ASTM A573 yog ib qho kev qhia tshwj xeeb rau High-Strength Low-Alloy Structural Steel Phaj. Qhov "Qib 70" txhais tau tias qhov tsawg kawg nkaus lub zog ntawm 50 ksi (50,000 psi). Nws yog lub npe hu rau nws zoo heev torque toughness thiab feem ntau yog siv nyob rau hauv txuas hniav, vaj tse, thiab lwm yam lug siv uas yuav tsum tau ntau toughness tshaj nyob rau hauv carbon steel.
2. Direct & ze tshaj qhov sib npaug rau A573 Gr. 70
Cov lus teb ncaj qha tshaj plaws nyob hauv ASTM tus qauv lawv tus kheej:
ASTM A572 Qib 50: Qhov no yog qhov sib npaug tshaj thiab lees txais. Ob leeg muab 50 ksi yam tsawg kawg nkaus yield zog. Qhov sib txawv tseem ceeb yog A572 Gr. 50 yog Columbium-Vanadium ntxiv dag zog rau cov hlau, thaum A573 Gr. 70 yog silicon-tua hlau nrog zoo dua toughness. Rau ntau daim ntawv sau npe, lawv suav hais tias hloov pauv tau, tab sis ib txwm nrog koj tus kws tsim qauv tsim.
ASTM A992 Cov Lus Qhia Tshwj Xeeb: Qhov no yog tus qauv rau cov qauv duab (xws li W-beams), tsis yog daim hlau. Txawm li cas los xij, A992 steel muaj lub zog tawm los ntawm 50-65 ksi, yog li nws yog qhov sib npaug ntawm lub zog. Nws yog ib qho tseem ceeb kom nco ntsoov cov khoom sib txawv ntawm daim ntawv.
3. International Equivalents (Crucial for Global Sourcing)
European (EN) TxujS355J2 lossis S355K2 raws li EN 10025-2. Lub "J2" thiab "K2" qhia tau hais tias muaj kev cuam tshuam zoo ntawm qhov kub thiab txias, zoo ib yam li A573.
Suav (GB) Standard:Q345B lossis Q355B (tus qauv tshiab) yog cov sib npaug sib npaug, muab cov txiaj ntsig zoo sib xws thiab cov tshuaj muaj pes tsawg leeg.
4. Kev txiav txim siab tseem ceeb: "Sib npaug" Tsis txhais hais tias "Ib yam"
Thaum hloov cov ntaub ntawv, koj yuav tsum xyuas:
Tshuaj muaj pes tsawg leeg: Puas yog lwm txoj hauv kev ua tau raws li koj qhov kev xav tau vuam lossis fabrication?
Impact Toughness: Puas yog qib sib npaug ua tau raws li qhov tsim nyog Charpy V-Notch ntsuas qhov ntsuas rau koj qhov kev pabcuam kub?
Specific Application Standards:Koj qhov project specs (piv txwv li, AWS D1.1 rau welding) tej zaum yuav yuam los yog xav tau ib qib tshwj xeeb.
Xaus: Thaum A572 Qib 50 yog qhov yooj yim tshaj plaws hauv tsev (USA) sib npaug rau A573 Qib 70, qhov kev xaiv zaum kawg nyob ntawm koj qhov project cov kev xav tau tshwj xeeb, tshuaj, thiab toughness.
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.
A573 qib 70 sib npaug li cas?
ASTM A573 Qib 70 khoom, ASTM A573 Qib 70 sib npaug steel phaj. ASTM A573 Qib 70 yog cov qauv carbon steel tsim feem ntau siv rau hauv cov hlab ntsha siab thiab cov tso tsheb hlau luam.
ASTM A573 Gr 70 steel phaj A573 qib 70 carbon steel ntawv yog dab tsi?
ASTM A573 Gr 70 steel phaj yog cov qauv zoo carbon manganese silicon steel. ASTM A573 Gr 70 steel phaj yog npaj rau kev siv cov txheej txheem ntawm atmospheric kub uas yuav tsum tau txhim kho toughness.
- ASTM A573 Gr 70 steel phaj tshuaj muaj pes tsawg leeg:
| Component Elements Properties | Metric | Lus Askiv | Cov lus pom |
| Carbon, C | 0.28% | 0.28% | tej zaum yuav txawv nrog phaj thickness |
| Hlau, Fe | 98% | 98% | raws li qhov sib npaug |
| Manganese, Mn | 0.85 - 1.2 % | 0.85 - 1.2 % | |
| Phosphorus, P | 0.04% | 0.04% | |
| Silicon, Sib | 0.15 - 0.40 % | 0.15 - 0.40 % | |
| Sulfur, S | 0.05% | 0.05% |
- ASTM A573 Gr 70 steel phaj txhua yam khoom:
| Lub cev muaj zog | Metric | Lus Askiv | Cov lus pom |
| Qhov ntom | 7,85g 3 | 0.282 lb/in³ | Hom ntawm ASTM Steel |
| Mechanical Properties | Metric | Lus Askiv | Cov lus pom |
| Tensile Strength, Qhov kawg | 485 - 620 MPa | 70300 - 89900 psi | |
| Tensile zog, tawm los | 290 MPa rau | 4 2100 psi | |
| Elongation ntawm Break | 18% | 18% | hauv 200 mm |
| Bulk Modulus | 160 GPa | 23 200 TZS | Hom rau steel |
| Shear Modulus | 80.0 GPA | 11 600 ksg | Hom rau steel |
- ASTM A573 Gr 70 steel phaj daim ntawv thov:
ASTM A573 Gr 70 steel phaj yog npaj rau fusion vuam thiab rau kev pab cuam ntawm atmospheric kub qhov twg txhim kho notch toughness yog ib qho tseem ceeb.
| Qib Ntawm Lub Hwj Hwj Hwj Hwj Hwj Hwj Hwj Hwj Hwj Hwj Muab Los ntawm GNEE | |||||
| ASTM | ASTM A202/A202M | ASTM A202 Qib A | ASTM A202 Qib B | ||
| ASTM A203 / A203M / ASTM A203 / ASTM A203 / ASTM A203 / ASTM A203 / ASTM A203 / ASTM A203 / ASTM A203 / ASTM A203 / ASTM A203 / ASTM A203 / A203M / ASTM A203 / ASTM A203 / ASTM A203 / ASTM A203 / A203M / ASTM A203 / ASTM A203 / A203M / ASTM A203 / ASTM A203 / A203M / ASTM A203 / A203M) | ASTM A203 Qib A | ASTM A203 Qib B | ASTM A203 Qib D | ASTM A203 Qib E | |
| ASTM A203 Qib F | |||||
| ASTM A204/A204M | ASTM A204 Qib A | ASTM A204 Qib B | ASTM A204 Qib C | ||
| ASTM A285/A285M | ASTM A285 Qib A | ASTM A285 Qib B | ASTM A285 Qib C | ||
| ASTM A299 / A299M ASTM | ASTM A299 Qib A | ASTM A299 Qib B | |||
| ASTM A302/A302M | ASTM A302 Qib A | ASTM A302 Qib B | ASTM A302 Qib C | ASTM A302 Qib D | |
| ASTM A387 / A387M ASTM A387 / ASTM A387 / ASTM A387 / ASTM A387 / ASTM A387 / ASTM A387 / ASTM A387 / ASTM A387 / ASTM A387 / ASTM A387 / ASTM A387 / ASTM A387 / ASTM A387 / A387M / ASTM A387 / ASTM A387 / ASTM A387 / ASTM A387 / ASTM A387 / ASTM A387 / A387M / ASTM A387 / ASTM A387 / ASTM A387 / ASTM A387 / ASTM A387 / ASTM A387 / ASTM A387 / ASTM A387 / ASTM A387) thiab ASTM A387 | ASTM A387 Qib 5 Qib 1 | ASTM A387 Qib 5 Qib 2 | ASTM A387 Qib 11 Chav Kawm 1 | ASTM A387 Qib 11 Chav Kawm 2 | |
| ASTM A387 Qib 12 Chav Kawm 1 | ASTM A387 Qib 12 Chav Kawm 2 | ASTM A387 Qib 22 Chav Kawm 1 | ASTM A387 Qib 22 Chav Kawm 2 | ||
| ASTM A515/A515M | ASTM A515 Qib 60 | ASTM A515 Qib 65 | ASTM A515 Qib 70 | ||
| ASTM A516/A516M | ASTM A516 Qib 55 | ASTM A516 Qib 60 | ASTM A516 Qib 65 | ASTM A516 Qib 70 | |
| ASTM A517 / A517M Kev Cai | ASTM A517 Qib A | ASTM A517 Qib B | ASTM A517 Qib E | ASTM A517 Qib F | |
| ASTM A517 Qib P | ASTM A517 Qib J | ||||
| ASTM A533 / ASTM A533M / ASTM A533 / ASTM A533 / ASTM A533 / ASTM A533 / ASTM A533 / ASTM A533 / ASTM A533 / ASTM A533 / ASTM A533 / ASTM A533 / ASTM A533 / ASTM A533 / ASTM A533 / ASTM A533 / ASTM A533 / ASTM A533 / ASTM A533 / ASTM A533 / ASTM A533 / ASTM A533 / ASTM A533 / ASTM A533 / ASTM A533 / ASTM A533 / ASTM A533 / ASTM A533 / ASTM A533 / ASTM A533 / ASTM A533) thiab ASTM A533 | ASTM A533 Qib A Class1 | ASTM A533 Qib B Class1 | ASTM A533 Qib C Class1 | ASTM A533 Qib D Class1 | |
| ASTM A533 Qib A Class2 | ASTM A533 Qib B Class2 | ASTM A533 Qib C Class2 | ASTM A533 Qib D Class2 | ||
| ASTM A533 Qib A Class3 | ASTM A533 Qib B Class3 | ASTM A533 Qib C Class3 | ASTM A533 Qib D Class3 | ||
| ASTM A537 / A537M Kev Cai | ASTM A537 Qib 1 | ASTM A537 Qib 2 | ASTM A537 Qib 3 | ||
| ASTM A612/A612M | ASTM A612 Cov khoom lag luam | ||||
| ASTM A662/A662M | ASTM A662 Qib A | ASTM A662 Qib B | ASTM A662 Qib C | ||
| EN | TS EN 10028-2 | TS EN 10028-2 P235GH | TS EN 10028-2 P265GH | TS EN 10028-2 P295GH | TS EN 10028-2 P355GH |
| EN10028-2 16MO3 | |||||
| TS EN 10028-3 | TS EN 10028-3 P275N | TS EN 10028-3 P275NH | EN10028-3 P275NL1 | EN10028-3 P275NL2 | |
| TS EN 10028-3 P355N | TS EN 10028-3 P355NH | EN10028-3 P355NL1 | EN10028-3 P355NL2 | ||
| TS EN 10028-3 P460N | TS EN 10028-3 P460NH | EN10028-3 P460NL1 | EN10028-3 P460NL2 | ||
| TS EN 10028-5 | TS EN 10028-5 P355M | EN10028-5 P355ML1 | EN10028-5 P355ML2 | TS EN 10028-5 P420M | |
| EN10028-5 P420ML1 | EN10028-5 P420ML2 | TS EN 10028-5 P460M | EN10028-5 P460ML1 | ||
| EN10028-5 P460ML2 | |||||
| TS EN 10028-6 | TS EN 10028-6 P355Q | TS EN 10028-6 P460Q | TS EN 10028-6 P500Q | TS EN 10028-6 P690Q | |
| TS EN 10028-6 P355QH | TS EN 10028-6 P460QH | TS EN 10028-6 P500QH | TS EN 10028-6 P690QH | ||
| EN10028-6 P355QL1 | EN10028-6 P460QL1 | EN10028-6 P500QL1 | EN10028-6 P690QL1 | ||
| EN10028-6 P355QL2 | EN10028-6 P460QL2 | EN10028-6 P500QL2 | EN10028-6 P690QL2 | ||
| JIS | JIS G3115 | JIS G3115 SPV235 | JIS G3115 SPV315 | JIS G3115 SPV355 | JIS G3115 SPV410 |
| JIS G3115 SPV450 | JIS G3115 SPV490 | ||||
| JIS G3103 | JIS G3103 SB410 | JIS G3103 SB450 | JIS G3103 SB480 | JIS G3103 SB450M | |
| JIS G3103 SB480M | |||||
| GB | GB713 | GB713 Q245R | GB713 Q345R | GB713 Q370R | GB713 12Cr1MoVR |
| GB713 12Cr2Mo1R | GB713 13MnNiMoR | GB713 14Cr1MoR | GB713 15CrMoR | ||
| GB713 18MnMoNbR | |||||
| GB3531 | GB3531 09MnNiDR | GB3531 15MnNiDR | GB3531 16MnDR | ||
| DIN | TIAB SA 17155 | DIN 17155 TSI | DIN 17155 HII | DIN 17155 10CrMo910 | DIN 17155 13CrMo44 |
| DIN 17155 15Mo3 | DIN 17155 17Mn4 | DIN 17155 19Mn6 | |||
