EN structural steel S355JR feem ntau yog nyob rau hauv daim ntawv ntawm S355JR steel phaj. Lub thickness tau teev tseg rau S355JR steel phaj raws li tau txais los ntawm online txheeb cais hauv khw pib los ntawm 3mm txog 400mm. Txawm li cas los xij lub zeb ntug dav S355JR steel kauj txawv ntawm 1250 hli mus rau 1500 hli. S355JR stee nplooj tuaj yeem txiav rau hauv qhov ntev sib txawv. Raws li nws tau muab rau hauv ntau hom ntawv ib yam nkaus, EN structural steel S355JR qhov ntev yuav tsum raug txheeb xyuas los ntawm cov neeg muag khoom ua ntej yuav khoom.
Kev sib piv tshuaj lom neeg
Kev sib piv S355NL vs S355JR qhia qhov sib txawv ntawm cov khoom muaj feem cuam tshuam rau qhov toughness thiab weldability.
|
Element |
S355NL (EN 10025-3, Ladle, max %) |
S355JR (EN 10025-2, max %) |
|---|---|---|
|
Cov pa roj carbon (C) |
0.18 |
0.24 |
|
Silicon (Si) |
0.50 |
0.55 |
|
Manganese (Mn) |
0.90-1.65 |
1.60 |
|
Phosphorus (P) |
0.025 |
0.035 |
|
Sulfur (S) |
0.015 |
0.035 |
|
Nitrogen (N) |
0.015 |
Tsis tau teev tseg |
|
Aluminium (Al) |
0.02 (min, tag nrho) |
Tsis tau teev tseg |
|
Niobium (Nb) |
0.05 |
Tsis tau teev tseg |
|
Vanadium (V) |
0.12 |
Tsis tau teev tseg |
|
Titanium (Ti) |
0.05 |
Tsis tau teev tseg |
|
Chromium (Cr) |
0.30 |
0.30 |
|
Nickel (Ni) |
0.30 |
0.30 |
|
Copper (Cu) |
0.55 |
0.55 |
Carbon Equivalent (CEV):
S355NL: Tsawg dua lossis sib npaug li 0.43% (tsawg dua lossis sib npaug li 63 hli), txhim kho los ntawm cov khoom zoo (Al, Nb).
S355JR: Tsawg dua lossis sib npaug li 0.45% (tsawg dua lossis sib npaug li 40 hli), siab dua vim muaj kev tswj tsis tshua muaj zog alloy.
S355JR vs S355NL muaj pes tsawg leeg qhia S355NL qis carbon (0.18% vs 0.24%), phosphorus, sulfur, thiab grain-refining ntsiab txhim kho toughness thiab weldability, thaum S355JR yooj yim muaj pes tsawg leeg txo nqi.
Mechanical Properties Sib piv
S355NL vs S355JR txhua yam khoom sib txawv feem ntau nyob rau hauv toughness thiab kuaj tej yam kev mob.
|
Khoom |
S355NL (EN 10025-3) |
S355JR (EN 10025-2) |
|---|---|---|
|
Yield zog (min, MPa) |
||
|
Tsawg dua los yog sib npaug li 16 hli |
355 |
355 |
|
16 |
345 |
345 |
|
40 |
335 |
335 |
|
Tensile zog (MPa) |
470-630 |
470-630 |
|
Elongation (min,%) |
22 (tsawg dua lossis sib npaug li 63 hli) |
22 (tsawg dua lossis sib npaug li 40 mm) |
|
Impact Zog (min, J) |
27 @ -50℃(ntev) |
27 @ +20℃(yog tias kuaj) |
Lub zog: Ob qib sib piv cov txiaj ntsig zoo ib yam (355 MPa) thiab lub zog tensile (470-630 MPa) rau cov tuab zoo sib xws, ua kom muaj peev xwm sib piv.
Toughness: Qhov tseem ceeb S355JR vs S355NL qhov txawv yog toughness. S355NL's -50℃kev ntsuam xyuas qhov cuam tshuam (Ntau dua lossis sib npaug ntawm 27 J) haum rau cov huab cua tsis zoo, thaum S355JR's +20 kev ntsuas ntsuas (lossis tsis muaj) txwv nws rau cov mob hnyav dua.
Thickness Range: S355NL txhawb nqa txog li 250 hli nrog cov khoom muaj zog tsawg- kub; S355JR mus txog 250 hli tab sis tsis tau lees tias qhov kev ua haujlwm txias.
FAQ:
Q: Koj puas yog lub Hoobkas lossis tuam txhab lag luam?
A: Peb yog cov chaw tsim khoom thiab muaj ntau xyoo kev tsim khoom thiab kev tswj xyuas.
Q: Koj puas muaj kev pabcuam tom qab- muag?
A: Tau kawg, koj tuaj yeem tiv tauj peb txhua lub sijhawm.peb cog lus tias peb cov khoom tsim nyog. Yog tias koj pom cov khoom tsis tsim nyog thiab tsis txaus siab rau qhov koj xav tau, thov hu rau peb txhua lub sijhawm.
Cim npe nrov: Tuam Tshoj qis alloy siab zog structural s355jr steel, Tuam Tshoj qis alloy siab zog structural s355jr steel manufacturers, lwm tus neeg, Hoobkas
