Products

Product Family of Advanced Abrasion & Wear Resistant Steel Plates

Heavy steel plates are used across a wide spectrum of applications. from the mining of raw materials from mother earth to crushing, material handling, construction equipment, cranes, liners, etc. The plates used for these applications demand highly superior metallurgical properties that include high strength coupled with high toughness and hardness. Moreover, the plates have to exhibit consistent properties to avoid failures during applications, which include impact loads, lower temperature usage, high wear, etc.

Consistent demand from the end applications for superior wear life, higher payloads, lower maintenance costs, and ease of fabrication has ensured the development of a wide range of grades and products for these applications. The product family for advanced abrasion and wear-resistant steel plates now includes 400 BHN, 450 BHN, and 500 BHN plates.

At our Convergence Steel warehouse facility, we stock branded steel plates from Arcelor Mittal Nippon Steel (AMNS-Rockstar) and Jindal Steel & Power (Rockhard). These branded plates are internationally acclaimed and have been used across the globe.

Following are the sizes and range of plates available with us,

WhatsApp Image 2023-01-28 at 10.40.21

RockStar 400

Grade Designation

Grade Name Rockstar 400
Hardness Level 360 - 430 BHN

Chemical Composition (Ladle Analysis)

Rockstar 400 Chemical Composition (%)
Plate C Si Mn P S Cr Ni Mo B CEV CET
thickness mm max % max % max % max % max % max % max % max % max % typv typv
6.0 – 20.0 0.16 0.70 1.60 0.025 0.010 0.50 0.25 0.25 0.004 0.45 0.28
21.0 – 32.0 0.18 0.70 1.60 0.025 0.010 1.00 0.25 0.25 0.004 0.48 0.29
32.1 – 50.0 0.15 0.70 1.60 0.025 0.010 1.40 0.50 0.60 0.004 0.57 0.33
50.1 – 75.0 0.18 0.70 1.60 0.025 0.010 1.40 0.50 0.60 0.004 0.65 0.40

Mechanical Properties

Grade and thickness Yield Strength (Min- Mpa) Tensile Strength (Min- Mpa) %Elongation(GL= 50mm) Charpy V-notch Impact toughness(Min)
Rockstar 400 1000 1250 12 27 Joules min @ -40°C

Rockstar 450

Grade Designation

Grade Name Rockstar 450
Hardness Level 425- 475 BHN

Chemical Composition (Ladle Analysis)

Rockstar 450 Chemical Composition (%)
Plate thickness C Mn P S Si Cr Ni Mo B CE PCM
mm max % max % max % max % max % max % max % max % max % max max
6.0 – 20.0 0.30 1.60 0.025 0.010 0.70 1.00 0.60 0.60 0.004 0.52 0.34
21.0 – 40.0 0.30 1.60 0.025 0.010 0.70 1.00 0.60 0.60 0.004 0.60 0.40
41.0 – 50.0 0.30 1.60 0.025 0.010 0.70 1.00 0.60 0.60 0.004 0.65 0.50

Mechanical Properties

Grade and thickness Yield Strength (Min- Mpa) Tensile Strength (Min- Mpa) %Elongation(GL= 50mm) Charpy V-notch Impact toughness(Min)
Rockstar 450 1100 1350 10 27 Joules min @ -40°C

Capability Dimension

Grade Name Rockstar 450
Thickness 6- 50mm

Rockstar 500

Grade Designation

Grade Name Rockstar 500
Thickness 6 - 50mm

Chemical Composition (Ladle Analysis)

Rockstar 500 Chemical Composition (%)
Plate thickness C Mn P S Si Cr Ni Mo B CE PCM
mm max % max % max % max % max % max % max % max % max % max max
6.0 – 20.0 0.30 1.60 0.025 0.010 0.70 1.50 1.50 0.70 0.004 0.60 0.41
21.0 – 40.0 0.30 1.60 0.025 0.010 0.70 1.50 1.50 0.70 0.004 0.65 0.43
41.0 – 50.0 0.30 1.60 0.025 0.010 0.70 1.50 1.50 0.70 0.004 0.74 0.48

Mechanical Properties

Grade and thickness Yield Strength (Min- Mpa) Tensile Strength (Min- Mpa) %Elongation(GL= 50mm) Charpy V-notch Impact toughness(Min)
Rockstar 500 1200 1450 8 27 Joules @ 0°C

Cold Forming

Welding Method Lower carbon equivalent of Rockstar plates results in good weldability. All conventional welding methods like manual electric welding, submerged arc welding, inert gas welding can be applied
Thermal Cutting Rockstar plates are compatible with all thens, cutting processes including one plasina, and laser Preheating or 100 to 150°C is recommended for plates thicker than 20 men (10 mm for Rockstar 5001. Excess prereating above 200 C may reduce the hardness of Rockstar

Dimensional Tolerances & Surface Quality

Thickness As per EN 10029- Class A/B/C/D as per requirements.
Length and Width As per EN 10029.
Flatness As per EN 10029 Class N steel type H
Surface Properties As per EN 10163-2. Class A Subclass 1
Plate Ultrasonic Testing As per EN 10160 SO.EO

Rockhard 400

Grade Name Rock Hard 400
Hardness Level 360 - 430 BHN

Chemical Composition (Ladle Analysis)

Rockhard 400 Chemical Composition (%)
Plate C Si Mn P S Cr Ni Mo B CEV CET
thickness mm max % max % max % max % max % max % max % max % max % typv typv
6.0 – 20.0 0.16 0.70 1.60 0.025 0.010 0.50 0.25 0.25 0.004 0.45 0.28
21.0 – 32.0 0.18 0.70 1.60 0.025 0.010 1.00 0.25 0.25 0.004 0.48 0.29
32.1 – 50.0 0.15 0.70 1.60 0.025 0.010 1.40 0.50 0.60 0.004 0.57 0.33
50.1 – 75.0 0.18 0.70 1.60 0.025 0.010 1.40 0.50 0.60 0.004 0.65 0.40

Mechanical Properties

Grade and thickness Yield Strength (Min- Mpa) Tensile Strength (Min- Mpa) %Elongation(GL= 50mm) Charpy V-notch Impact toughness(Min)
Rockhard 400 1000 1250 12 27 Joules min @ -40°C

Rockhard 450

Grade Designation

Grade Name Rockhard 450
Hardness Level 425- 475 BHN

Chemical Composition (Ladle Analysis)

Rockhard 450 Chemical Composition (%)
Plate thickness C Mn P S Si Cr Ni Mo B CE PCM
mm max % max % max % max % max % max % max % max % max % max max
6.0 – 20.0 0.30 1.60 0.025 0.010 0.70 1.00 0.60 0.60 0.004 0.52 0.34
21.0 – 40.0 0.30 1.60 0.025 0.010 0.70 1.00 0.60 0.60 0.004 0.60 0.40
41.0 – 50.0 0.30 1.60 0.025 0.010 0.70 1.00 0.60 0.60 0.004 0.65 0.50

Mechanical Properties

Grade and thickness Yield Strength (Min- Mpa) Tensile Strength (Min- Mpa) %Elongation(GL= 50mm) Charpy V-notch Impact toughness(Min)
Rockhard 450 1100 1350 10 27 Joules min @ -40°C

Rockhard 500

Grade Designation

Grade Name Rockhard 500
Thickness 6 - 50mm

Chemical Composition (Ladle Analysis)

Rockhard 500 Chemical Composition (%)
Plate C Si Mn P S Cr Ni Mo B CEV CET
thickness mm max % max % max % max % max % max % max % max % max % typv typv
6.0 – 20.0 0.16 0.70 1.60 0.025 0.010 0.50 0.25 0.25 0.004 0.45 0.28
21.0 – 32.0 0.18 0.70 1.60 0.025 0.010 1.00 0.25 0.25 0.004 0.48 0.29
32.1 – 50.0 0.15 0.70 1.60 0.025 0.010 1.40 0.50 0.60 0.004 0.57 0.33
50.1 – 75.0 0.18 0.70 1.60 0.025 0.010 1.40 0.50 0.60 0.004 0.65 0.40

Mechanical Properties

Grade and thickness Yield Strength (Min- Mpa) Tensile Strength (Min- Mpa) %Elongation(GL= 50mm) Charpy V-notch Impact toughness(Min)
Rockhard 500 1200 1450 8 27 Joules @ 0°C

Boiler Quality & Pressure Vessels Plate

ASTM A 515 Grade 60/65/70

'
Element Thickness Range Weight Grade 60 Grade 65 Grade 70
Carbon up to 12.5 mm % 0.24 0.28 0.31
12.5 to 50 mm % 0.27 0.31 0.33
50 to 100mm % 0.29 0.33 0.35
Silicon % 0.15 - 0.40 0.15 - 0.40 0.15 - 0.40
Manganese % 0.9 0.9 1.2
Phosphorus % 0.025 0.025 0.025
Sulphur % 0.025 0.025 0.025
Aluminium Min%
Tensile Strength Range Mpa 415-550 450-585 485-620
Yield strength Min Mpa 220 240 260
Elongation Min % 25 23 21

ASTM A 516 Grade 55/60/65/70

Element Thickness Range Weight Grade 55 Grade 60 Grade 65 Grade 70
Carbon up to 12.5 mm % 0.18 0.21 0.24 0.27
12.5 to 50 mm % 0.20 0.024 0.26 0.28
50 to 100mm % 0.22 0.026 0.28 0.30
Silicon % 0.15 - 0.40 0.15 - 0.40 0.15 - 0.40 0.15 - 0.40
Manganese % 0.60 - 0.90 0.60 - 0.90 0.85 - 1.20 0.85 - 1.20
Phosphorus % 0.025 0.025 0.025 0.025
Sulphur % 0.025 0.025 0.025 0.025
Aluminium Min%
Tensile Strength Range Mpa 380-515 415-550 450-585 485-620
Yield strength Min Mpa 205 220 240 260
Elongation in 50mm GL Min % 27 25 23 21
Imapct Test as per SA 20 In Longitudinal Direction Min Joules Avg 18 J @ -51 Deg C Avg 18 J @ -51 Deg C Avg 18 J @ -51 Deg C Avg 20 J @ -46 Deg C

IS 2002 Gr1/Gr2/Gr3

Element Thickness Range Weight Grade 1 Grade 2 Grade 3
Carbon up to 12.5 mm % 0.18 0.2 0.22
12.5 to 50 mm %
50 to 100mm %
Silicon % 0.15 - 0.35 0.15 - 0.35 0.15 - 0.35
Manganese % 0.50 - 1.2 0.50 - 1.2 0.50 - 1.2
Phosphorus % 0.04 0.04 0.04
Sulphur % 0.035 0.035 0.035
Aluminium Min% 0.020 0.020 0.020
Tensile Strength Range Mpa 360-480 410-530 460-580
Yield strength Min Mpa 235 265 290
Elongation in 50mm GL Min % 24 22 21

IS 2041 R260/R275/R355

Element Thickness Range Weight R220 R260 R275 R355
Carbon up to 12.5 mm % 0.21 0.25 0.16 0.18
12.5 to 50 mm %
50 to 100mm %
Silicon % 0.15 - 1.50 0.85 - 1.50 0.80 - 1.50 1.10 - 1.70
Manganese % 0.60 - 1.50 0.85 - 1.50 0.80 - 1.50 1.10 - 1.70
Phosphorus % 0.035 0.035 0.025 0.025
Sulphur % 0.035 0.035 0.015 0.015
Aluminium Min% 0.020 0.020 0.020 0.020
Tensile Strength Range Mpa 415-540 490-620 380-510 490-640
Yield strength Min Mpa 220 260 275 355
Elongation in 50mm GL Min % 27 25 23 21
Imapct Test as per SA 20 In Longitudinal Direction Min Joules Not Specified

Advanced High Strength Steel Plates

S690QL

S 690 QL Plates Chemical Composition

C Si Mn P S B Cr Cu Mo N Ni Nb* Ti* V* Zr*
0.20 0.80 1.70 0.020 0.010 0.005 1.50 0.50 0.015 0.06 2.0 0.05 0.15 0.05 0.15

Properties and Dimensions - EN10025 S690QL High Tensile Plate

Steel grade Yield strength ReH MPa Tensile strength Rm MPa EN 10025­6: 2004 + A1:2009 Heavy plate thickness mm Elongation,
min %
S690Q, QL 690 770 – 940 S690QL 6 – 60 14

S690QL structural Steel Plate V Notch Impact Testing

Grade Sample Orientation @ 0°C @-20°C @-40°C @-60°C
S690 QL Longitudinal 50 J 40 J 30 J ––
Traverse 35 J 30 J 27 J ––

S 890 QL

S 890 QL Plates Chemical Composition

C Si Mn P S B Cr Cu Mo N Ni Nb* Ti* V* Zr*
0.20 0.80 1.70 0.020 0.010 0.005 1.50 0.50 0.015 0.06 2.0 0.05 0.15 0.05 0.15

S890QL High tensile Plates Mechanical Properties

Plate Thickness

mm

Yield Strength

ReH (MPa)

Tensile Strength

Rm (MPa)

Elongation

A5 % minimum

Impact Strength

J, Minimum
3 to 50
890
940 - 1100
11
30 @ -40º C
> 50 to 100
830
880 - 1100
11
30 @ -40º C

V Notch impact testing

Grade
Sample Orientation
@ 0°C
@-20°C
@-40°C
@-60°C
S890QL
Longitudinal
50 J
40 J
30 J
––
Traverse
35 J
30 J
27 J
––

Hot Rolled Medium And High Tensile - Structural Steel

IS 2062

Element Grade Weight (Max) E250 E275 E300 E350 E410 E450 E550 E600 E650
Carbon A % 0.23 0.23 0.20 0.20 0.20 0.22 0.22 0.22 0.22
BR/BO % 0.22 0.22
C % 0.20 0.20 - - - -
Silicon % 0.40 0.40 0.45 0.45 0.45 0.45 0.50 0.50 0.50
Manganese % 1.50 1.50 1.50 1.55 1.60 1.65 1.65 1.70 1.70
Phosphorus % 0.045 0.04 0.04 0.04 0.04 0.045 0.025 0.025 0.025
Sulphur % 0.045 0.04 0.04 0.04 0.04 0.045 0.020 0.020 0.015
Aluminium Min% 0.02 0.02 0.02 0.02 0.02 0.02 0.02 0.02 0.02
Carbon Equivalent 0.41 0.41 0.44 0.45 0.5 0.52 0.54 0.54 0.55
Tensile Strength Min Mpa 410 430 440 490 540 570 650 730 780
Yield strength Min Mpa 250 275 300 350 410 450 550 600 650
Elongation in 5.65 GL Min % 23 22 22 22 20 20 12 12 12
Impact Test as per is 2062 RT- Room Temperature Joules Grade A : Not applicable
GradeBR : Avg 27 J @ RT
Grade B0 : Avg 27 J @ 0 Deg C
Grade C : Avg 27 J @ - 20 Deg C		 Grade BR : Avg
20 J @ RT s		 Grade BR : Avg
15 J @ RT
Bend Test T - Thickness Mandrel Dia <=25mm:2T>25mm:3T <=25mm:2T <=25mm:2.5T <=25mm:3T <=25mm:3.5T <=25mm:4T

EN 10025 -2

Element Grade Weight (Max) S235 S275 S355 S460 S500
Carbon JR % 0.19 0.24 0.27 0.23 0.23
JO % 0.21 0.23
J2/K2 % 0.21 0.23
Silicon % - - 0.60 0.60 0.60
Manganese % 1.5 1.6 1.7 1.8 1.8
Phosphorus % 0.035 0.035 0.035 0.04 0.04
Sulphur % 0.035 0.035 0.035 0.04 0.04
Aluminium Min% 0.15 0.15 0.15 0.15 0.15
Carbon Equivalent 0.35 0.40 0.45 0.49 0.49
Tensile Strength Min Mpa 360-510 430-580 510-680 550-720 580-760
Yield strength Min Mpa 235 275 355 460 500
Elongation in 5.65 GL Min % 24 21 19 17 15
Impact Test as per is 2062 RT- Room Temperature Joules Grade JR : Avg 27 J @ RT
Grade J0 : Avg 27 J @ 0 Deg C
Grade J2 : Avg 27 J @ - 20 Deg C
Grade K2 : Avg 40 J @ - 20 Deg C :only for S355 & S460
Bend Test T - Thickness Mandrel Dia 2T 3T 3.5T -
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