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S550Q High yield strength steel plate
Source:Xin Steel Industry   Date:2013/05/03

S550Q high strength steel plate also named as S550Q high strength low alloy steel plate under steel stand EN 10025-6 which is for hot rolled structural steels with high yield strength and tensile strength in quenched and tempered delivery condition.Quenching operation which consists of cooling a ferrous steel plate more rapidly than in still air.Tempering heat treatment applied to a ferrous steel plate generally after quench hardening or other heat treatment to bring the properties to the required level.S550Q shall be done low temperature impacting test under minus 20 centigrade.


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Other relative high strength steel grades including EN 10025-6 S460Q high strength steel plate,S460QL Quenched steel plate,S460QL1 steel plate,S500Q hot rolled steel plate,S500QL structural steel plate,S500QL1 high strength steel plate,S550Q plate steel,S550QL structural steel plate,S550QL1 quenched steel plate,S620Q steel plate,S620QL high strength steel plate,S620QL1 plate steel,S690Q steel plate,S690QL structural steel sheet,S690QL1 steel plate,S890Q plate steel,S890QL steel sheet,S890QL1 hot rolled plate,S960Q high strength steel plate,S960QL high strength plate steel.


Chemical composition of Heat analysis for S550Q quenched and tempered steel plate (Max %)

 

Steel Grade

The Main Elements in rolling S550Q high strength steel plate

C

Si

Mn

P

S

N

B

S550Q

0.20

0.80

1.70

0.025

0.015

0.015

0.0050

Cr

Cu

Mo

Nb

Ni

Ti

V

Zr

1.50

0.50

0.70

0.06

2.0

0.05

0.12

0.15