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ASTM A572 Grade 50 HSLA Carbon Steel Plate Hot Rolled 6mm-150mm 2500mm Width for Bridge Building and Heavy Structural

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Metal Corrugated Roofing Sheets

ASTM A572 Grade 50 HSLA Carbon Steel Plate Hot Rolled 6mm-150mm 2500mm Width for Bridge Building and Heavy Structural

MOQ:	5 Tons
Price:	USD 580-750 / Ton
Standard Packaging:	Shot blasted SA2.5, steel strip bundled, heavy-duty wooden pallet, MTC EN 10204 3.1 provided
Delivery Period:	15-25 working days after order confirmation
Payment Method:	T/T, L/C at sight
Supply Capacity:	12000 Tons per Month

Detail Information

Product Description

Detail Information

Place of Origin

Shanghai, China

Brand Name

Baosteel

Certification

ISO 9001:2015, ASTM A572/A572M, AASHTO M270, EN 10204 3.1

Model Number

A572-GR50-HR

Grade:

ASTM A572 Grade 50 (Equivalent: S355JR, Q345B, SM490A)

Standard:

ASTM A572/A572M, AASHTO M270

Thickness:

6mm - 150mm

Width:

1500mm, 2000mm, 2500mm

Length:

6000mm - 18000mm

Yield Strength:

≥345 MPa (≥50 Ksi)

Tensile Strength:

≥450 MPa (≥65 Ksi)

Carbon Equivalent:

CE ≤0.45% (typical 0.38-0.42%)

Application:

Bridges, Transmission Towers, Heavy Structures, Rolled Shapes, Offshore Platforms

Minimum Order Quantity:

5 Tons

Price:

USD 580-750 / Ton

Packaging Details:

Shot blasted SA2.5, steel strip bundled, heavy-duty wooden pallet, MTC EN 10204 3.1 provided

Delivery Time:

15-25 working days after order confirmation

Payment Terms:

T/T, L/C at sight

Supply Ability:

12000 Tons per Month

Highlight:

ASTM A572 Grade 50 steel plate

hot rolled carbon steel plate

HSLA steel plate for bridge building

Product Description

ASTM A572 Grade 50 HSLA Carbon Steel Plate — Bridge & Heavy Structure Grade

Our ASTM A572 Grade 50 high strength low alloy (HSLA) steel plate provides 345 MPa (50 ksi) minimum yield strength through controlled microalloying with niobium and vanadium, delivering a 38% strength advantage over standard A36 without compromising weldability. With excellent notch toughness and a low carbon equivalent (≤0.45%), this grade is the workhorse specified for highway bridges (AASHTO M270), heavy structural frames, transmission towers, and offshore platform components. We supply North American infrastructure projects, Middle Eastern bridge programs, and Southeast Asian power transmission networks.

Key Features

38% Stronger than A36: 345 MPa minimum yield allows 25-30% material weight reduction in bridge girders and structural columns while maintaining design safety factors
Excellent Notch Toughness: Fine-grain microalloyed structure provides superior resistance to brittle fracture at low temperatures compared to plain carbon steels
No Preheating Required: Low carbon equivalent (CE ≤0.45%) enables welding without preheat for most thicknesses, reducing fabrication time and energy costs
Weathering Option: Available as A572 Gr50 with Type 1 or improved atmospheric corrosion resistance (4x bare carbon steel) for unpainted bridge applications
Multi-Standard Acceptance: Directly equivalent to S355JR (EN), Q345B (GB), and SM490A (JIS) for global project specification compliance

Technical Specifications

Grade	ASTM A572 Grade 50 (Type 1)
Standard	ASTM A572/A572M, AASHTO M270 Grade 50
Thickness	6mm - 150mm
Width	1500mm - 2500mm
Yield Strength	≥345 MPa (50 ksi)
Tensile Strength	≥450 MPa (65 ksi)
Elongation	≥18% (200mm gauge)

Target Markets & Applications

North America: Highway bridge girders (AASHTO qualified), parking garage structural frames, industrial building columns and beams
Middle East: Cable-stayed bridge main girders, petrochemical plant heavy pipe racks, LNG tank structural support frames
Southeast Asia: Power transmission line lattice towers (345-500kV), railway bridge spans, port container crane girders
Offshore platform topside primary steel, wind turbine tower flange plates, heavy mobile crane booms

Packaging & Delivery

Plates shot blasted to SA2.5 with shop primer available. Bundled by size and heat number with steel strapping on heavy-duty wooden or steel pallets. MTC EN 10204 3.1 with full traceability from melt to delivery. Custom flame/plasma cutting to size. FOB Shanghai/Tianjin, CIF to North America, Middle East, and Southeast Asia.

Tags:

Products

MOQ:	5 Tons
Price:	USD 580-750 / Ton
Standard Packaging:	Shot blasted SA2.5, steel strip bundled, heavy-duty wooden pallet, MTC EN 10204 3.1 provided
Delivery Period:	15-25 working days after order confirmation
Payment Method:	T/T, L/C at sight
Supply Capacity:	12000 Tons per Month

Detail Information

Product Description

Detail Information

Place of Origin

Shanghai, China

Brand Name

Baosteel

Certification

ISO 9001:2015, ASTM A572/A572M, AASHTO M270, EN 10204 3.1

Model Number

A572-GR50-HR

Grade:

ASTM A572 Grade 50 (Equivalent: S355JR, Q345B, SM490A)

Standard:

ASTM A572/A572M, AASHTO M270

Thickness:

6mm - 150mm

Width:

1500mm, 2000mm, 2500mm

Length:

6000mm - 18000mm

Yield Strength:

≥345 MPa (≥50 Ksi)

Tensile Strength:

≥450 MPa (≥65 Ksi)

Carbon Equivalent:

CE ≤0.45% (typical 0.38-0.42%)

Application:

Bridges, Transmission Towers, Heavy Structures, Rolled Shapes, Offshore Platforms

Minimum Order Quantity:

5 Tons

Price:

USD 580-750 / Ton

Packaging Details:

Shot blasted SA2.5, steel strip bundled, heavy-duty wooden pallet, MTC EN 10204 3.1 provided

Delivery Time:

15-25 working days after order confirmation

Payment Terms:

T/T, L/C at sight

Supply Ability:

12000 Tons per Month

Highlight

ASTM A572 Grade 50 steel plate

hot rolled carbon steel plate

HSLA steel plate for bridge building

Product Description

ASTM A572 Grade 50 HSLA Carbon Steel Plate — Bridge & Heavy Structure Grade

Key Features

38% Stronger than A36: 345 MPa minimum yield allows 25-30% material weight reduction in bridge girders and structural columns while maintaining design safety factors
Excellent Notch Toughness: Fine-grain microalloyed structure provides superior resistance to brittle fracture at low temperatures compared to plain carbon steels
No Preheating Required: Low carbon equivalent (CE ≤0.45%) enables welding without preheat for most thicknesses, reducing fabrication time and energy costs
Weathering Option: Available as A572 Gr50 with Type 1 or improved atmospheric corrosion resistance (4x bare carbon steel) for unpainted bridge applications
Multi-Standard Acceptance: Directly equivalent to S355JR (EN), Q345B (GB), and SM490A (JIS) for global project specification compliance

Technical Specifications

Grade	ASTM A572 Grade 50 (Type 1)
Standard	ASTM A572/A572M, AASHTO M270 Grade 50
Thickness	6mm - 150mm
Width	1500mm - 2500mm
Yield Strength	≥345 MPa (50 ksi)
Tensile Strength	≥450 MPa (65 ksi)
Elongation	≥18% (200mm gauge)

Target Markets & Applications

North America: Highway bridge girders (AASHTO qualified), parking garage structural frames, industrial building columns and beams
Middle East: Cable-stayed bridge main girders, petrochemical plant heavy pipe racks, LNG tank structural support frames
Southeast Asia: Power transmission line lattice towers (345-500kV), railway bridge spans, port container crane girders
Offshore platform topside primary steel, wind turbine tower flange plates, heavy mobile crane booms

Packaging & Delivery

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Steel Profiles

ASTM A572 Grade 50 HSLA Carbon Steel Plate Hot Rolled 6mm-150mm 2500mm Width for Bridge Building and Heavy Structural

ASTM A572 Grade 50 steel plate

hot rolled carbon steel plate

HSLA steel plate for bridge building

ASTM A572 Grade 50 HSLA Carbon Steel Plate — Bridge & Heavy Structure Grade

Key Features

Technical Specifications

Target Markets & Applications

Packaging & Delivery

A36 Hot Rolled Carbon Steel Plate,

Hot Rolled Carbon Steel Plate D32,

Carbon Steel Coil

Carbon Steel Plate

Stainless Steel Coil

Stainless Steel Plate Sheet

Galvanized Steel Plate

Titanium Tube

PPGI Coil

Metal Corrugated Roofing Sheets

Carbon Steel Pipe

Stainless Steel Pipe

Galvanized Steel Pipe Tube

Carbon Steel Rod

Stainless Steel Rod Bar

Galvanized Wire Coil

Steel Railway Track

Steel Profiles

ASTM A572 Grade 50 steel plate

hot rolled carbon steel plate

HSLA steel plate for bridge building

ASTM A572 Grade 50 HSLA Carbon Steel Plate — Bridge & Heavy Structure Grade

Key Features

Technical Specifications

Target Markets & Applications

Packaging & Delivery

A36 Hot Rolled Carbon Steel Plate,

Hot Rolled Carbon Steel Plate D32,