Q390D Low-Alloy High-Strength Structural Steel GB/T Q390D Carbon Steel

Description: Q390D Low-Alloy High-Strength Structural Steel, and the Q390D steel plate under the GB/T1591-2018 standard. Q390D steel is not only a high-strength steel, but also a low-carbon steel. Q390D has high yield strength (yield strength is 390mpa). Good fatigue ...

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Q390D Steel Description

Q390D Low-Alloy High-Strength Structural Steel, and the Q390D steel plate under the GB/T1591-2018 standard. Q390D steel is not only a high-strength steel, but also a low-carbon steel. Q390D has high yield strength (yield strength is 390mpa). Good fatigue resistance, high toughness and low brittle transition temperature, good cold forming performance and welding performance, good corrosion resistance and certain wear resistance performance.

Q390D Carbon and low-alloy steel has good low temperature toughness. Q390D steel plate is mainly used in ships, boilers, pressure vessels, oil storage tanks, bridges, power station equipment, lifting and transportation machinery and other welded structural parts with higher loads. Q390D steel plate is delivered in hot rolled, controlled rolled, normalized, normalized rolled, normalized and tempered, thermomechanical rolled (TMCP) or thermomechanical rolled and tempered state.

Q390D Steel Datasheet

Product Name	Q390D Carbon and Low-Alloy High-Strength Structural Steel
Standard	GB/T1591
Thickness	0.2-300mm
Width	600-2000mm
Length	1m-12m
Payment	T/T,L/C at sight.etc.
Technique	Hot Rolled/Cold Rolled
Certificate	MTC,SGS,BV,TUV
Lead time	15 working days

Q390D Steel Chemical composition

C	Si	Mn	P	S	V	Nb	Ti	Cr	Ni
0.20	0.55	1.00-1.60	0.040	0.040	0.02-0.20	0.015-0.060	0.02-0.20	0.30	0.70

Q390D Steel Mechanical Properties

Grade	Thickness	Yield Strength (Mpa)	Tensile Strength	Elongation(%)	ImpactEnergy
Grade	(mm)	Yield Strength (Mpa)	(MPa)	Elongation(%)	Min
Q390D	≤ 16	390	490-650	20	-20	34
	>16-35	370	490-650	20	-20	34
	>35	350	490-650	20	-20	34
The min impact energy is longitudinal energy

Equivalent Grade of Q390D Steel

Grade	Standard	Country	Application
Q420	GB/T	China	Mainly used across various commercial applications including construction, cranes, poles, bridges, road plate and other high-strength applications
Q460	GB/T	China	Widely used in manufacture of chilly work dies, punches, cold chopping scissors, drill bushes, gauges, wire drawing dies, coining dies, draw bench boards, drawing dies, thread rolling dies, and so forth.