GB/T1591 Q420B Carbon and low alloy steel round bar, Q420B steel bar Loading Port

GB/T1591 Q420B Carbon and low alloy steel round bar is under steel specification GB/T1591 which is for high strength low alloy structural steels. Q420 steel contains five different steel grades as Q420A,Q420B,Q420C,Q420D and Q420E.

Q420B steel bar shall be done impacting test at low temperature minus 20 degree centigrade.Normalised heat treatment suggested to be done for low alloy steel bar Q420B in heavy thickness. Q420B Carbon and low alloy steel round bar is used in Construction of Bridges, Highway Construction and Other Engineering construction

Q420B Carbon and low alloy steel round bar Mechanical property

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

GB/T1591 Q420B Carbon and low alloy steel round bar Chemical composition(%)

C≤0.20 Si≤0.55 Mn:1.00-1.70 P≤0.040 S≤0.040 Nb:0.015-0.060 Ti:0.02-0.20 Cr≤0.40 Ni≤0.70

Packaging Details: Standard export seaworthy packing or as required.

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

Loading Port: Shanghai ,Tianjin, Qingdao.

Third Party Inspection for Q420B: ABS, DNV, BV, GL, CCS, LR, RINA, KR, NK, CE, SGS, IKE, IEI or other quality department.

Additional Condition:

UT(Ultrasonic examination), AR(As Hot Rolled only), TMCP(Thermal Mechanical Control Processing), N(Normalized), Q+T(Quenched and Tempered),Z Direction Test(Z15,Z25,Z35), Charpy V-Notch Impact Test, The Third Party Test (such as SGS Test), Coated or Shot Blasting and Painting.

Bebon International is the well-known Q420B steel bar manufacturers and exporters of China, to provide you with a variety of carbon and low alloy steel you need, Welcome to send inquiry to us if you are interested in Q420B steel round bar,or contact us on line freely.

• Tel: 0086-371-86151827 86151627
• Fax: 0086-371-86011881
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