■ Overview
GB/T1591 Q460 contains three different steel grades as Q460C,Q460D and Q460E.Structural steel Q460D shall be done impacting test at low temperature minus 20 degree centigrade.Normalised heat treatment suggested to be done for low alloy steel Q460D,Q460D steel plate,Q460D steel sheet in heavy thickness,Quenched and tempered is also adopt when end users demand.
■ Full Data
Technical Requirements & Additional Services for Q460D steel plate:
♦ Low temperature impacting test
♦ Cutting and welding as per end user’s demands
♦ More striction on some chemical elements contains
♦ Issued Orginal Mill test certificate under EN 10204 FORMAT 3.1/3.2
♦ Ultrasonic test under GB/T2970,JB4730,EN 10160,ASTM A435,A577,A578
♦ Low temperature impacting test
♦ Cutting and welding as per end user’s demands
♦ More striction on some chemical elements contains
♦ Issued Orginal Mill test certificate under EN 10204 FORMAT 3.1/3.2
♦ Ultrasonic test under GB/T2970,JB4730,EN 10160,ASTM A435,A577,A578
■ Techicals
►Mechnical property for Q460D low alloy structural steel:
Thickness (mm) | ||||
Q460D | ≤ 16 | > 16 ≤ 35 | > 35 ≤ 50 | >50 |
Yield strength (≥Mpa) | 460 | 440 | 420 | 400 |
Tensile strength (Mpa) | 550-720 |
►Chemical composition for Q460D low alloy structural steel (Heat Analysis Max%)
Main chemical elements composition of Q460D | ||||||||||
C | Si | Mn | P | S | V | Nb | Ti | Al (min.) | Cr | Ni |
0.20 | 0.55 | 1.00-1.70 | 0.030 | 0.030 | 0.02-0.20 | 0.015-0.060 | 0.02-0.20 | 0.015 | 0.70 | 0.70 |