High strength GB/T1591 Q420D Carbon and low ally steel round bar, Q420D steel bar

GB/T1591 Q420D Carbon and low ally steel round bar shall be done impacting test at low temperature minus 20 degree centigrade.Normalised heat treatment suggested to be done for low alloy steel plate Q420D in heavy thickness. Q420 contains five different steel grades as Q420A,Q420B,Q420C,Q420D and Q420E.

When the starting rolling temperature was 780 ℃ and the finishing rolling temperature was 790 ℃,the microstructure of the tested steel was finest. Q420D steel bar is used in construction of Bridges, highway construction and other Engineering construction.

Q420D steel bar Mechanical property

Yield strength Mpa:360-420 Tensile strength Mpa:520-680

GB/T1591 Q420D steel bar Chemical composition(%)

C≤0.20 Si≤0.55 Mn:1.00-1.70 P≤0.030 S≤0.030 V:0.02-0.20 Nb:0.015-0.060 Ti:0.02-0.20 Al≥0.015

GB/T1591 Q420D Carbon and low ally steel round bar Specification

Dimensions :5.0mm-500mm

Packaging Details: Standard export seaworthy packing or as required.

Delivery Time:30-50 days, 7 days for stock goods.

Loading Port:Shanghai ,Tianjin, Qingdao.

Offer Ability:5000MT/Per Month.

Third Party Inspection for Q460E: ABS, DNV, BV, GL, CCS, LR, RINA, KR, NK, CE, SGS, IKE, IEI or other quality department

BEBON International is committed to exceed customer’s expectation on the basis of quality, price, and delivery. If you need Q420D steel bar and want to know Q420D steel chemical composition an GB/T1591 Q420D steel bar mechanical properties,pls contact us.

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