EN High Strength Structural S355JR Steel Phaj

Low Alloy High Strength Structural S355JR Steel yog ib hom European qauv (EN 10025-2) kub-kho cov qauv hlau, paub txog qhov zoo weldability, formability, thiab tej yam toughness, featuring ib tug tsawg kawg nkaus yield zog ntawm 355 MPa (rau thicknesses txog li 12mm ntawm JULER) thiab kev ntsuam xyuas +20 degree). Siv rau hauv kev tsim kho, tshuab, txuas hniav, thiab tsheb, nws lub npe qhia tias: 'S' rau Cov Qauv, '355' rau 355 MPa yield zog, thiab 'JR' rau Charpy cuam tshuam kev ntsuas ntawm chav tsev kub. Nws yog qhov siab -lub zog, qis-carbon manganese steel, nrog qhov sib npaug xws li ASTM A572 Gr. 50 lossis Suav Q345B.

Hauj lwm lawm

Kev tsis

EN 10025 yog European tus qauv qauv hlau rau cov khoom kub dov hauv carbon steel. S355 qib kuj tau txhais nyob rau hauv tus qauv no, tsis yog qib no kuj muaj S235, S275, S460, S550, S620, S690 nrog rau tej yam kev mob kub dov, normalized, quenched, thiab tempered.

S355 specifications

Qib	cim
S355	JR	Charpy cuam tshuam kev ntsuas ntawm chav tsev kub 20 degree
	J0	Charpy Impact tests ntawm 0 degree
	J2	Charpy cuam tshuam kev ntsuas ntawm -20 degree
S355J2	N	Kev kho mob normalized
S355J2	G3	Kev kho mob normalized

Cov lus hauv qab no qhia cov tshuaj muaj pes tsawg leeg ntawm qib S355JR

Qib hlau	C	Mn	Si	P	S	N	Cu	Lwm yam	CEV
	max.	max.	max.	max.	max.	max.	max.	max.	max.
	%	%	%	%	%	%	%	%	%

S355 JR	0,24	1,60	0,55	0,040	0,040	0,012	0,55	–	0,45

High Strength S355JR Steel Plate

Low Alloy High Strength S355JR Steel

FAQ

Dab tsi yog qhov txawv ntawm S355NL vs S355JR?
S355NL yog ib qho zoo li qub- cov hlau tau sim ntawm -50℃(Ntau dua lossis sib npaug li 27 J), zoo tagnrho rau huab cua txias xws li arctic offshore platforms. S355JR yog kub- dov tsis-alloy steel kuaj ntawm +20℃(yog tias kuaj), haum rau temperate general siv. Ob leeg muaj 355 MPa yield zog.

Qhov sib txawv ntawm S355JR vs S355NL li cas?
S355NL ua kom muaj ntau dua lossis sib npaug rau 27 J ntawm -50 degree, ua rau nws ntseeg tau rau sub-zero ib puag ncig zoo li cov choj sab qaum teb. S355JR's toughness (Ntau dua lossis sib npaug ntawm 27 J ntawm +20℃, yog tias kuaj) txwv nws rau cov huab cua me me, tsis muaj kev lees paub qhov ntsuas kub qis.

Dab tsi yog qhov zoo dua rau cov huab cua txias hauv S355NL vs S355JR?
S355NL yog qhov zoo tshaj rau cov huab cua txias vim nws -50℃cuam tshuam toughness, ua kom muaj kev nyab xeeb hauv arctic lossis offshore daim ntawv thov. S355JR tsis haum rau sub-zero tej yam kev mob.

Puas yog S355JR vs S355NL weldable?
Yes, but S355NL (CEV ≤0.43%) is more weldable with lower preheating needs (100-150°C for >20 mm) than S355JR (CEV ≤0.45%, >25 hli preheat), vim qis carbon thiab impurities, txo weld imperfections.

Dab tsi yog daim ntawv thov ntawm S355NL vs S355JR?
S355NL yog siv nyob rau hauv txias - huab cua offshore platforms, cua yees, thiab txuas hniav; S355JR suits temperate tsev lub moj khaum, txuas hniav, thiab dav fabrication uas tus nqi yog qhov tseem ceeb.

S355NL S355J2 cuam tshuam li cas rau S355JR?
S355JR zoo ib yam li S355J2 (kuaj ntawm -20 degree), ob qho tib si kub- dov tsis-alloy steels raws li EN 10025-2. S355NL ua tau zoo dua ob qho tib si ntawm -50 degree, ua rau nws zoo dua rau qhov chaw txias dua li S355J2 lossis S355J

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