High-Tensile & HSLA Plates

High Tensile Steel (HTS) Plates are a specialized category of steel, typically falling into the low-to-medium carbon range, that are enhanced with strategic alloying elements. This process fundamentally increases their tensile strength, durability, and wear properties compared to standard carbon steel. HTS plates are chosen for applications that demand superior mechanical performance and greater resistance to atmospheric corrosion where mild carbon steel would be insufficient. Despite their strength, these plates maintain good welding capacity due to their carefully controlled low-carbon composition.

We Deal in All Sizes is from 1.6 to 350mm as per Client’s Requirements.

High Tensile Plate Grades

Specifications

Thickness : 5mm – 150mm
Width : 1000mm – 3000mm
Length : 3000mm – 15000mm
Heat Treatment : Rolled/Normalised/N+T/QT
Process of Manufacturing : : Hot-Rolled (HR)

Grade	C	Si	Mn	S	P	C.E
E350	0.20 max	0.45 max	1.50 max	0.045 max	0.045 max<	–

Grade	C	Mn	P	S	Si
E450	0.23	1.65	0.045	0.045	0.06

Grade	C	Si	Mn	P	S	Al(min)	N
E500	0.20	0.55	1.70	0.030	0.030	0.015	0.020

Grade	C	Si	Mn	P	S	Cu	N
E550	0.2200 max	0.5000 max	1.6500 max	0.0250 max	0.0200 max	0.2000 -0.3500	0.0120 max

Grade	C	Si	Mn	P	S
E600	0.22 max	0.50 max	1.70 max	0.025 max	0.020 max

Grade	C %	Mn %	S %	N %	Cu %	Nb %	Ti %	Si %	P %	AL %	Cr %	Mo %	Ni %	Vi %
P 355 N	0.10-0.22	0.10-1.70	0.015	0.012	0.30	0.020	0.03	0.60	0.025	0.020	0.30	0.08	0.30	0.02

Grade	C	Mn	P	S	Si	(CE), Max
E410	0.20	1.60	0.045	0.045	0.45	0.50

Standards	Grades	C max. %	Mn %	S%	P max%	Si
ASTM A572	Grade 50	0.23	≤1.35	0.05	0.04	≤0.04
ASTM A572	Grade 60	0.26	≤1.35	0.05	0.04	≤0.04

Grade	Thickness (mm)	Yield Strength Rehmin (N / mm²)	Tensile Strength Rmmin (N / mm²)	Elongation A5 min(%)	Impact Values Charpy-V-Notch LongitudinalAverage from 3 Speimens Thk.>10<150mm.
E350	3<thk<100	315-355	490-630	max 22	27 Joules at -20 C

Grade E450	Yield strength N/mm²			Tensile strength N/mm²	Elongation (%)
	＜20mm	20mm-40mm	＞40mm
	570	450	430	420	20

Grade	Mechanical Property			Charpy V Impact Test
Grade	Yield	Tensile	Elongation	Degree	Energy 1	Energy 2
E500	Min Mpa	Mpa	Min %	-40	J	J
E500	500	610-770	16%	-40	33	50

Grade	Yield Rp0.2 (MPa)	Tensile Rm (MPa)	Impact KV/Ku (J)	Elongation A (%)	Reduction in cross section on fracture Z (%)	As-Heat-Treated Condition	Brinell hardness (HBW)
E550	129 (≥)	199 (≥)	31	11	13	Solution and Aging, Annealing, Ausaging, Q+T,etc	113

Grade	Yield R_p0.2 (MPa)	Tensile R_m (MPa)	Impact KV/Ku (J)	Elongation A (%)	Reduction in cross section on fracture Z (%)	As-Heat-Treated Condition	Brinell hardness (HBW)
E600	531 (≥)	312 (≥)	32	21	34	Solution and Aging, Annealing, Ausaging, Q+T,etc	133

Grade	Type	Thickness mm	Yield strength Mpa(min)	Tensile Strength MPa	Elongation % (min)	Impact Energy (KVJ) (min)
Grade	Type	Thickness mm	Yield strength Mpa(min)	Tensile Strength MPa	Elongation % (min)	-20°	0°	+20
P 355 N	Normalized	t≤16	355	510-650	20	27	34	40
		16＜t≤40	345	510-650	20	27	34	40
		40＜t≤60	335	460-580	20	27	34	40
		60＜t≤100	315	490-630	20	27	34	40
		100＜t≤150	295	480-630	20	27	34	40
		150＜t≤250	280	470-630	20	27	34	40

Grade	Yield Strength Rehmin (N / mm²)	Tensile Strength Rmmin (N / mm²)	Elongation (%)
E410	380-410	540	20

Standard	Grade	Yield strength Re	Tensile strength Rm	Minimum elongation %
Standard	Grade	MPa [ksi]	MPa [ksi]	min. 200 mm[8 in.]	min. 50 mm[2 in.]
ASTM A572	Grade 50	≥345 [50]	≥450 [65]	18	21
ASTM A572	Grade 60	≥415 [60]	≥520 [75]	16	18

High-Tensile & HSLA Plates

High Tensile Plate Grades

Specifications

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