S235 JRyog ib qho tsis yog - alloy structural steel qib tau teev tseg los ntawm EN 10025-2. Nws yog feem ntau siv nyob rau hauv kev tsim kho thiab engineering industries los ua cov yam ntxwv thiab qhov chaw uas yuav tsum tau zoo weldability thiab machinability.
Cov ntaub ntawv sib npaug:
ASTM A36: ASTM A36 yog ib qho American standard carbon structural steel specification, uas yog feem ntau siv nyob rau hauv cov qauv siv. Nws yog ze tshaj rau S235JR hais txog cov tshuaj muaj pes tsawg leeg.
JIS Ss400: SS400 yog tus qauv Japanese (JIS G3101) rau cov qauv hlau uas sib npaug rau S235JR.
ISO E235B: ISO E235B yog European tus qauv tsis yog{2}} alloy structural steel qib, uas yog sib npaug rau S235JR raws li EN 10025-2.
Chemical Composition Comparison (Tswj):
S235JR:
Cov pa roj carbon (C): 0.17% - 0.20%
Silicon (Si): 0.35%
Manganese (Mn): 1.40%
Phosphorus (P): 0.045%
Sulfur (S): 0.045%
ASTM A36 Txuj:
Cov pa roj carbon (C): 0.25% (max)
Manganese (Mn): 0.80% - 1.20%
Phosphorus (P): 0.04% (max)
Sulfur (S): 0.05% (max)
JIS SS400:
Cov pa roj carbon (C): 0.05% - 0.21%
Manganese (Mn): 0.50% - 1.50%
Phosphorus (P): 0.045% (max)
Sulfur (S): 0.050% (max)
Mechanical Properties Comparison (Tswj):
S235JR, ASTM A36, JIS SS400:
Yield zog (min): 235 MPa
Tensile zog: 360-510 MPa
Cov ntsiab lus:
S235JR yog dav siv thoob plaws ntau yam kev lag luam vim nws cov khoom siv kho tshuab thiab tshuaj lom neeg zoo, suav nrog weldability thiab machinability. Nws qhov sib npaug suav nrog ASTM A36 hauv Asmeskas, JIS SS400 hauv Nyij Pooj, thiab ISO E235B hauv Tebchaws Europe, txhua tus muab cov peev txheej zoo sib xws tsim nyog rau kev siv engineering thiab kev tsim kho.
Cov lus sib piv luv luv ntawm cov qib sib npaug thoob ntiaj teb rau S235JR Steel
| Standard System | Feem ntau siv qib sib npaug | Qhov Tseem Ceeb Zoo sib xws thiab Qhov Tseem Ceeb Qhov txawv |
|---|---|---|
| Teb chaws Europe (EN) | S235JR (EN 10025 - 2) | Qhov no yog qib benchmark nws tus kheej. |
| International (ISO) | E235B (ISO 630) | Qhov yooj yim tshaj plaws thoob ntiaj teb qib sib npaug, nrog ze li cov khoom siv kho tshuab zoo ib yam thiab cov kev xav tau. |
| Asmeskas (ASTM) | ASTM A36 | Feem ntau ntau yam hauv kev ua haujlwm sib npaug. Nws muaj tib daim ntawv thov (cov qauv dav dav). Qhov sib txawv: A36 muaj lub zog me ntsis siab dua (Ntau dua lossis sib npaug rau 250 MPa), thiab cov khoom siv tshuaj lom neeg sib txawv. |
| Japanese (JIS) | SS400 (JIS G3101) | Ib qho kev siv dav dav dav hlau hauv Japanese qauv. Qhov sib txawv tseem ceeb: SS400 yog txhais los ntawm lub zog tensile (400 - 510 MPa) es tsis txhob muaj zog tawm los, thiab feem ntau tsis muaj kev cuam tshuam rau lub zog. |
| Suav (GB) | Q235B (GB/T 700) | Cov qhab-nees sib npaug ntawm Suav ncaj tshaj plaws. Q235 sawv cev rau lub zog tawm los, thiab B sawv cev rau qib zoo (chav - qhov kub thiab txias yuav tsum muaj), sib xws rau lub ntsiab lus ntawm JR. |
| German (Kub DIN) | St 37 - 2 (DIN 17100) | Ib qib keeb kwm uas tau hloov los ntawm EN tus qauv S235JR thiab tuaj yeem suav tias yog qhov sib npaug. |
Core Equivalence Basis: Yam tsawg kawg nkaus yield zog ~ 235 MPa, thiab nws muab chav - kub (+20 degree) cuam tshuam toughness lav. Nws belongs rau feem ntau thiab ntau yam dav dav qauv steel qib.
Puas yog S235JR sib npaug rau A36?
Lub sij hawm "235" yog hais txog qhov tsawg kawg nkaus yield zog (MPa) rau steel thickness tsawg dua 16 hli. Lub "JR" qhia txog lub zog-txog qib zoo ntawm Charpy impact test (27 J, 20℃kub). ASTM A36 cov khoom sib npaug rau cov hlau S235JR.
S235JR steel qib yog dab tsi?
S235JR yog cov khoom siv dav dav, tus nqi - zoo, tsis yog - alloy structural steel (EN 10025 tus qauv) paub zoo weldability thiab formability, qhia los ntawm nws qhov tsawg kawg nkaus 235 MPa yield zog (S) thiab 27 Joule cuam tshuam lub zog ntsuas ntawm chav tsev kub (JR), ua rau nws tsim nyog rau kev siv lub tshuab, kev siv lub tshuab, thiab kev tiv thaiv corrosion. tiv as nws tsis yog inherently stainless.
JR sawv cev rau dab tsi hauv S235JR?
S235JR: Ib hom hlau uas nquag siv, S235JR paub txog nws qhov weldability, machinability, durability, thiab hnav- ua haujlwm. Nws cov lus "JR" qhia tias nws qhov cuam tshuam tsawg kawg nkaus yog 27 joules thiab nws tau dhau los ua qhov kev ntsuam xyuas ntawm 20 degree.