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Golden Steel Material is a premier ISO-certified stockist based in Al Jubail. We supply high-performance pipes, fittings, valves, and flanges to the Oil & Gas and Industrial sectors across Saudi Arabia and the GCC.

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Al Jubail 35526, Saudi Arabia

S550MC Plates

Material Grade: EN 10149-2 S550MC (High Yield)

Supply Condition: Thermomechanically Rolled (M)

Yield Strength: 550 MPa Minimum for Heavy Load Bearing

Forming Property: Excellent for Complex Cold Pressing

Design Edge: Significant Weight Reduction Potential

Fabrication Advantage: Superior Weldability with Low Carbon Equivalent

Thickness Range: 2.0 mm to 16 mm

Primary Industries: Heavy Transport, Crane Systems, & Chassis Components

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S550MC Plates represent the upper tier of high-strength structural steels designed specifically for weight-optimized engineering. Produced in accordance with the EN 10149-2 standard, these plates deliver a high minimum yield strength of 550 MPa. The "MC" designation identifies them as Thermomechanically Rolled (M), a sophisticated manufacturing process that uses precise temperature control during rolling to refine the grain structure. This process ensures that the steel maintains the high ductility necessary for Cold Forming (C), allowing manufacturers to execute sharp bends and intricate pressing without compromising the structural integrity of the material.

The primary technical advantage of EN 10149-2 S550MC is its ability to facilitate "light-weighting" in heavy-duty machinery and transport systems. By utilizing the 550 MPa strength, engineers can specify thinner plates to achieve the same load-bearing capacity as thicker, standard structural grades, thereby increasing payload and reducing fuel consumption. Despite its increased strength, S550MC remains highly weldable due to its low carbon equivalent and offers excellent fatigue resistance. It is the preferred choice for longitudinal beams in truck chassis, telescopic crane booms, heavy-duty agricultural equipment, and specialized trailer frames where the balance of high mechanical stress and weight reduction is critical for operational efficiency.

S550MC Plates Features

» High-Yield Performance (550 MPa): Provides a high strength-to-weight ratio, allowing engineers to design lighter structures that can support greater loads compared to standard grades.
» Superior Cold Forming: Specifically micro-alloyed to allow for excellent bendability and cold-pressing, making it ideal for components with complex geometries.
» Thermomechanical Processing: Precision-rolled under strict temperature controls to achieve an ultra-fine grain structure, ensuring uniform mechanical properties across the plate.
» Weight Saving Efficiency: Enables a significant reduction in plate thickness, which translates to lower vehicle dead weight, increased payloads, and improved fuel economy.
» Exceptional Weldability: Features a low carbon equivalent (CEV), which facilitates easy welding with all standard industrial processes while maintaining high toughness in the weld zone.
» Reliable Impact Toughness: Maintains structural integrity and resists brittle fracture even in low-temperature conditions, essential for machinery operating in harsh climates.
» High Fatigue Resistance: Designed to withstand repetitive mechanical stress and cyclic loading, making it the top choice for dynamic applications like truck chassis and crane booms.
» Optimized Surface for Fabrication: The clean surface finish is perfectly suited for high-speed automated laser cutting and provides an excellent base for painting or galvanizing.

S550MC Plates Specification

Standards

EN Standard: EN 10149-2
Grade: S550MC
Werkstoff No: 1.0986
Classification: High-Yield Cold Forming

Chemistry

Carbon (C): 0.12% Max
Manganese (Mn): 1.80% Max
Silicon (Si): 0.50% Max
Micro-Alloys: Nb, V, Ti (Sum Max 0.22%)

Strength

Yield Strength: 550 MPa (Min)
Tensile Strength: 600 – 760 MPa
Elongation: 12 - 14% (Min)
Bending Radius: 1.0t to 2.5t

Fabrication

Condition (M): Thermomechanical
Bending: Highly Suitable
Weldability: Superior (Low CEV)
Hardness: Approx. 180-230 HB

Dimensions

Thickness: 2.0 mm to 16 mm
Width: 1000 mm to 1500 mm
Length: 2000 mm to 12000 mm
Tolerance: EN 10051

Quality

MTC: EN 10204 3.1
Testing: Tensile, Bend, & Impact
Surface: HR / P&O (Pickled & Oiled)
Reliability: Certified Mill Sourcing

S550MC Plates Detailed Specifications

Property	Specification
Item	High Tensile Steel Plate - EN 10149-2 / WNR. 1.0986
Standard	ASTM, ASME and API
Size	0.5 mm – 200 mm
Thickness range	2.4mm-16mm
Width range	900mm-1850mm
Length	2000mm to 12000mm
Process of Manufacturing	Hot-Rolled (HR)
Hardness	Soft, Hard, Half Hard, Quarter Hard, Spring Hard etc.

S550MC Plates Chemical Composition

Grade	C max	Si max	Mn max	P max	S max	AL max	Nb max	V max	Ti max
S550MC	0.12	0.50	1.8	0.025	0.015	0.015	0.09	0.2	0.15

S550MC Plates Mechanical Properties

Grade	ReH-Minimun yield strength(Mpa)	Rm-Tensile strength(Mpa)	Nominal thickness(mm)	A-Minimum elongation Lo=5,65√So(%)	Nominal thickness(mm)	A-Minimum elongation Lo=Lo=80mm(%)
EN 10149-2 S550MC	550	600-760	From3	14	to3	12

S550MC Plates Equivalent Grades

S550MC EN 10149-2 Number:1.0986	Comparison of steel grades
	SEW092	QStE 550TM
	NFA36-231	E560D
	UNI8890	FeE560TM
	ASTM	080XLK
	BS1449	60F45/60F55

Industrial Locations & Keywords

Industrial Locations & Keywords
Riyadh Industrial Cities (1st, 2nd, 3rd & Sudair)
Jeddah Industrial Cities (1st, 2nd & 3rd)
Dammam Industrial Areas (1st, 2nd & 3rd)
Jubail Industrial City
Yanbu Industrial City
Rabigh Industrial City
Al Khobar Industrial Area
Al Ahsa Industrial City
Madinah Industrial City
Makkah Industrial City
Taif Industrial City
Tabuk Industrial City
Jazan Industrial City
Industrial supplier in Saudi Arabia
Pipe fittings supplier in Jubail / Dammam / Riyadh
Flange and valve supplier Saudi Arabia
Fast delivery industrial materials KSA