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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

ASME SA 537 CL.1 PLATES

Material Grade: ASME SA 537 Class 1 / ASTM A537

Material Type: Heat-Treated Carbon-Manganese-Silicon Steel

Heat Treatment: Normalized for Enhanced Toughness

Strength Profile: Yield Strength: 345 MPa (Min)

Primary Application: High-Pressure Fusion Welded Vessels

Structural Edge: Superior Strength-to-Weight Ratio vs SA 516

Service Suitability: Excellent for Low-Temperature Notch Toughness

Fabrication Advantage: Optimized for High-Integrity Welding & Forming

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ASME SA 537 Class 1 Plates are high-performance, heat-treated carbon-manganese-silicon steel plates engineered for superior structural integrity in Pressure Vessel Quality (PVQ) applications. Unlike standard carbon steels, SA 537 Class 1 is exclusively supplied in a Normalized condition, a metallurgical process that refines the grain structure to achieve a higher yield and tensile strength than the SA 516 series. This makes it an ideal material for fusion-welded pressure vessels and structural components that require increased load-bearing capacity without a significant increase in plate thickness.

The technical advantage of SA 537 CL.1 lies in its enhanced low-temperature notch toughness and excellent impact resistance. With a minimum yield strength of 345 MPa (50 ksi), it allows engineers to design more efficient, lighter vessels while maintaining strict compliance with the ASME Boiler and Pressure Vessel Code. It is widely utilized in the production of industrial boilers, heat exchangers, storage tanks, and spheres for the oil, gas, and petrochemical industries. By opting for SA 537 Class 1, manufacturers secure a material that offers a perfect balance of advanced mechanical properties, superior weldability, and long-term durability in critical high-pressure environments.

ASME SA 537 CL.1 PLATES Features

» Enhanced Yield Strength: Provides a minimum yield strength of 345 MPa (50 ksi), offering superior load-bearing capacity compared to standard SA 516 grades.
» Normalized Heat Treatment: Exclusively supplied in a normalized condition to refine grain structure, ensuring uniform mechanical properties and improved structural reliability.
» Superior Notch Toughness: Specifically engineered for applications requiring excellent impact resistance, particularly in moderate to lower temperature services.
» Optimized Chemical Balance: The carbon-manganese-silicon composition is precision-balanced to achieve high strength while maintaining exceptional weldability and formability.
» Fusion Welding Excellence: Designed specifically for use in fusion-welded pressure vessels, ensuring high-integrity joints that can withstand extreme internal pressures.
» Weight Efficiency: The higher strength-to-weight ratio allows for the use of thinner plates in vessel design, reducing overall project weight and transportation costs.
» Clean Steel Practice: Manufactured using killed steel techniques to minimize internal impurities, effectively reducing the risk of laminar tearing during fabrication.
» Compliance & Traceability: Fully compliant with ASME Section II requirements and supplied with comprehensive Mill Test Certificates (MTC) for total quality assurance.

ASME SA 537 CL.1 PLATES Specification

Standards

ASME: SA 537 Class 1
ASTM: A 537 Class 1
Type: C-Mn-Si Steel
Heat Treat: Normalized (N)

Chemistry

Carbon (C): 0.24% Max
Manganese (Mn): 0.70% - 1.60%
Silicon (Si): 0.15% - 0.50%
Phosphorus (P): 0.035% Max

Strength

Yield Strength: 345 MPa (Min)
Tensile Strength: 485 - 620 MPa
Elongation (8in): 18% (Min)
Elongation (2in): 22% (Min)

Processing

Welding: Excellent (Fusion)
Testing: Charpy V-Notch Impact
Toughness: Enhanced Notch Toughness
Forming: High Ductility

Dimensions

Thickness: 6 mm to 100 mm
Width: 1500 mm to 3500 mm
Length: 3000 mm to 12000 mm
Custom: CNC Profile Cutting

Quality

MTC: EN 10204 3.1 / 3.2
Ultrasonic: ASTM A578 Level B
Compliance: NACE MR0175 (Optional)
Origin: Tier-1 Mill Certified

ASME SA 537 CL.1 PLATES Detailed Specifications

Property	Specification
Grade	ASME SA 537 CL.1 Boiler and Pressure Vessel Steel Plates
Width	1000mm-4500mm
Thickness	5mm-150mm
Length	3000mm-18000mm.
Supply Condition	As Rolled, Normalized Rolling, Furnace Normalizing, Vacuum Degassing, Simulated Post-Weld Heat Treatment or as per customer requirement.
Impact tested	-52° C
Tempering	Notch toughness can be improved by quenched cooling from hot rolling or normalizing by the supplier. If such a faster cooling rate is agreed upon between purchaser and supplier then the steel is also to be tempered at 1200 F.
Applications	Used for Boilers and Pressure Vessels Application.
Process of Manufacturing	Hot-Rolled (HR)

ASME SA 537 CL.1 PLATES Chemical Composition

C	Mn		P	S	Si	Cr	Cu	Ni	Mo
	≤ 40 mm	> 40 mm
0.24 max	0.70/1.35	1.00/1.60	0.035	0.035	0.15/0.50	0.025	0.35	0.25	0.080

ASME SA 537 CL.1 PLATES Mechanical Properties

Grade	Heat Treatment	Yield (MPa)	Tensile (MPa)	Elongation		Thickness
				A50mm	A200mm
SA537 Class 1	Normalized	345	485/620	22%	18%	≤ 65
		310	450/585	22%	18%	> 65 ≤ 100

ASME SA 537 CL.1 PLATES Equivalent Grades

Steel Grade	JIS	Germany
ASTM/ASME	G3115	DIN17155
A537 / SA537	SPV36	19Mn5

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