Automotive Beam Steel

LG510L, LG550L, LG590L, LG610L, LG650L, LG700L, LG750L, LG800L, LG850LE, LG980LE

Commodity name： Automotive Beam Steel

Category:

Hot-rolled Automotive Steel

Email:

david@prosper-bridge.com

Product Inquiry

Related products

文件下载

Detailed

Product Description

Auto beam steel family is mainly used in stringer and transverse beam of automobile, and is the ealiest developed product in LY Steel. Presently, over one million tons have been put into market, of which LG510L and LG610L awarded national metallurgy product quality certificate gold prize and LG510L awarded metallurgic industry quality excellent product prize. The product has good cold machining and formability. It can meet many machining requirements such as cutting, slitting, stamping , bending, roll pressing and welding.

Delivery standard refers to Q/OHAC 809 Sheet and Strip for Automotive Beam.

Main Grades and Strength

Grade	Lower yield strength	Tensile strength	Elongation after fracture		Cold bending test		Low temperature impact test
	Rel, MPa	Rm, MPa	A ₈₀ mm(%) ,h<3.0mm	A%,h≥3.0mm	h≤12mm	h > 12 mm	Test temperature ℃	Impact absorbing energy J
LG510L	≥355	510–650	≥20	≥24	d=a, qualified	d=1.5a, acceptable	-	-
LG550L	≥440	550 to 700	≥ 19	≥23	d=a, qualified	d=1.5a, acceptable	-	-
LG590L	≥460	590 to 720	≥ 15	≥20	d=1.5a, acceptable	d=2.0a, pass	Class D -20	≥34
							Class E -40	≥27
LG610L	≥500	610 to 760	≥ 15	≥ 18	d=1.5a, acceptable	d=2.0a, pass	Class D -20	≥34
							Class E -40	≥27
LG650L	≥550	650–820	≥ 13	≥ 17	d=1.5a, acceptable	d=2.0a, pass	Class D -20	≥34
							Class E -40	≥27
LG700L	≥600	700–880	≥ 12	≥ 15	d=2.0a, pass	d=2.5a, acceptable	Class D -20	≥34
							Class E -40	≥27
LG750L	≥650	750–950	≥ 11	≥ 13	d=2.0a, pass	d=2.5a, acceptable	Class D -20	≥34
							Class E -40	≥27
LG800L	≥700	800–1000	≥ 10	≥ 12	d=2.0a, pass	d=2.5a, acceptable	Class D -20	≥34
							Class E -40	≥27
LG850LE	≥800	900–1100	≥ 10	≥ 12	d=3.0a, pass	d=3.5a, qualified	Class E -40	≥27
LG980LE	≥900	980–1200	≥ 10	≥ 12	d=3.5a, qualified	d=4.0a, pass	Class E -40	≥27
Note:1)a is the thickness of sample;b is the width of bending sample; d is the diameter of bending core.(2)The direction of tensile test sample is transverse, i.e.P5 sample according to GB/T 228. The direction of bending sample is transverse, i.e the flap test according to GB/T 232. the impact powder is in longitudinal (i.e parallel to the rolling direction).3）when the yield is not abvious,use Rp0.2 instead ReL.4)For steel with yield strength≥600MPa, thickness higher than 8mm, the min yield strength can be reduced by 20MPa.