Cov ntaub ntawv dav dav
EN 10025 S355 steel yog European qauv qauv steel qib, raws li EN 10025-2: 2004, cov khoom S355 muab faib ua 4 qib zoo:
● S355JR (1.0045)
● S355J0 (1.0553)
● S355J2 (1.0577)
● S355K2 (1.0596)
Cov khoom ntawm cov qauv hlau S355 zoo dua li cov hlau S235 thiab S275 hauv cov khoom muaj zog thiab tensile zog.
Steel Qib S355 Lub ntsiab lus (Designation)
Cov tsiaj ntawv thiab cov lej hauv qab no piav qhia txog qib steel S355 lub ntsiab lus.
"S" luv luv rau "cov qauv hlau".
"355" yog hais txog qhov tsawg kawg nkaus yield zog tus nqi rau lub tiaj thiab ntev steel thickness ≤ 16mm.
"JR" txhais tau tias qhov cuam tshuam lub zog tus nqi yog tsawg kawg 27 J ntawm chav tsev kub (20 ℃).
"J0" tuaj yeem tiv taus lub zog cuam tshuam tsawg kawg 27 J ntawm 0 ℃.
"J2" ntsig txog qhov cuam tshuam tsawg kawg ntawm lub zog yog 27 J ntawm -20 ℃.
"K2" hais txog qhov cuam tshuam tsawg kawg nkaus ntawm lub zog yog 40 J ntawm -20 ℃.
Tshuaj muaj pes tsawg leeg & Mechanical khoom
Tshuaj muaj pes tsawg leeg
S355 Chemical Composition % (≤) | ||||||||||
Txuj | Hlau | Qib | C | Si | Mn | P | S | Cu | N | Txoj kev deoxidation |
TS EN 10025-2 | S355 | S355 JR | 0.24 ib | 0.55 ib | 1.60 ib | 0.035 ib | 0.035 ib | 0.55 ib | 0.012 ib | Rimmed steel tsis pub |
S355J0 (S355JO) | 0.20 ib | 0.55 ib | 1.60 ib | 0.030 Nws | 0.030 Nws | 0.55 ib | 0.012 ib | |||
S355J 2 | 0.20 ib | 0.55 ib | 1.60 ib | 0.025 ib | 0.025 ib | 0.55 ib | - | Tuag tag | ||
S355K 2 | 0.20 ib | 0.55 ib | 1.60 ib | 0.025 ib | 0.025 ib | 0.55 ib | - | Tuag tag |
Mechanical Properties
Yield zog
S355 Yield zog (≥ N / mm2); Dia. (d) mm | |||||||||
Hlau | Qib Steel (Steel Number) | d≤16 | 16<d ≤40 | 40<d ≤63 | 63 <d ≤80 | 80<d ≤100 | 100<d ≤150 | 150<d ≤200 | 200<d ≤250 |
S355 | S355JR (1.0045) | 355 | 345 | 335 | 325 | 315 | 295 | 285 | 275 |
S355J0 (1.0553) | |||||||||
S355J2 (1.0577) | |||||||||
S355K2 (1.0596) |
Tensile zog
S355 Tensile zog (≥ N / mm2) | ||||
Hlau | Qib Steel | d <3 | 3 ≤ d ≤ 100 | 100 <d ≤ 250 |
S355 | S355 JR | 510-680 : kuv | 470-630 : kuv | 450-600 Nws |
S355J0 (S355JO) | ||||
S355J 2 | ||||
S355K 2 |
Elongation
Elongation (≥%); Thickness (d) hli | ||||||
Hlau | Qib Steel | 3≤d≤40 | 40<d ≤63 | 63<d ≤100 | 100<d ≤ 150 | 150 <d ≤ 250 |
S355 | S355 JR | 22 | 21 | 20 | 18 | 17 |
S355J0 (S355JO) | ||||||
S355J 2 | ||||||
S355K 2 | 20 | 19 | 18 | 18 | 17 |