A36 Medium and Heavy Plate

Sanhe Steel is a trusted Chinese manufacturer and supplier of medium and heavy plate. Our A36 Medium and Heavy Plate is hot-rolled carbon structural steel complying with ASTM A36 / A36M standard. Usable thickness covers 6 mm-100 mm, width up to 2500 mm, length up to 12000 mm. The core practical advantage for buyers is stable mechanical performance with minimum yield strength 250 MPa, good weldability and bending property.

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Product Description

Sanhe Steel is a China-based steel supplier and manufacturer with experience in steel trading, processing and export. Its product range includes steel plate, medium and heavy plate, checkered plate and hot-rolled steel, with processing services such as cutting, shearing and leveling available for project-specific requirements.

A36 Medium and Heavy Plate is widely-recognized hot-rolled carbon structural steel produced by Sanhe Steel, a Chinese steel factory with more than 16-years steel processing experience. Produced strictly following ASTM A36/A36M specification, this medium and heavy plate delivers balanced strength, ductility and excellent weld-ability. Available in multiple thickness ranges, it can be supplied as original mill plate or pre-processed cut-to-size blanks. Widely adopted for building frameworks, bridge components, machinery bases, equipment frames and general metal fabrication projects across global markets.

A36 Medium and Heavy Plate

Product Advantages

High Strength & Structural Stability
A36 Medium and Heavy Plate offers reliable strength and structural stability, making it suitable for demanding construction and industrial applications.

Excellent Weldability
With good weldability, A36 steel plate can be easily welded, cut, formed, and processed according to different project requirements.

Consistent Thickness & Quality
The plate provides uniform thickness and stable mechanical performance, supporting reliable fabrication and long-term service.

Wide Application Range
A36 medium and heavy plate is widely used in steel structures, bridges, machinery, construction equipment, storage tanks, and other heavy-duty applications.

Cost-Effective Material Choice
Its balanced combination of strength, machinability, availability, and cost makes A36 steel plate a practical choice for large-scale industrial and construction projects.

A36 Medium and Heavy Plate

Properties and Availability

Parameter	Standard Range
Yield strength	≥250 MPa (36 ksi) per ASTM A36/A36M
Tensile strength	400 – 550 MPa (58–80 ksi)
Elongation	≥23% in 200mm; ≥21% in 50mm gauge
Chemistry	Low carbon (≤0.26% max for plates); Mn ≤1.20%
Thickness	6 – 100 mm standard; wider on request
Width	1,250 mm / 1,500 mm / 1,800 mm / 2,000 mm / 2,500 mm
Length	6,000 mm / 12,000 mm standard; cut to length
Edge	Mill edge or flame/CNC cut to size
Supply	As-rolled; normalized on request

Surface Treatments and Value-Added Processing

Tailored Semi-Finished Components Ready for Your Assembly Line

Rather than just delivering raw plates, Sanhe Steel operates an in-house secondary processing center:

CNC Flame & Plasma Profile Cutting: Cut-to-size square plates, circular flanges, gear blanks, and complex structural shapes based on CAD drawings.

Edge Preparation: Single-V, Double-V, and K-bevel edge milling for instant field welding readiness.

Surface Pre-treatment: Automated centrifugal shot blasting to Sa 2.5 standard, followed by weldable shop primer coating (red iron oxide or zinc-rich) to protect against atmospheric corrosion during 30–60 days of ocean transport.

Typical Applications

Bridge girders, structural columns, and building frameworks.

Machinery bases, equipment frames, and heavy fabrication.

Shipbuilding and marine structures.

Storage tanks and pressure vessel shells (with 3.2 certification).

Transmission tower components and steel structures.

General fabrication — from handrails to heavy weldments.

A36 Medium and Heavy Plate

Project Case Studies

Case 1: Infrastructure: Our A36 plates were used as primary beams for a new bridge construction project in Southeast Asia, adhering to strict ASTM standards and tight delivery schedules.

Case 2: Heavy Machinery: A European construction equipment manufacturer procured custom-cut A36 plates for chassis frames, benefiting from our precision processing and EN 10204 3.2 certification to meet their rigorous quality demands

A36 Medium and Heavy Plate

Comparison Table

Item	Sanhe Steel A36 Medium and Heavy Plate	Generic Q235B domestic steel plate	High-strength A572 Gr50 steel plate
Governing standard	ASTM A36 / A36M	GB/T 700-2006	ASTM A572 Gr50
Minimum yield strength	≥ 250 MPa	≥ 235 MPa	≥ 345 MPa
Export document support	EN10204-3.1/3.2 MTC for North-America & global projects	Mainly Chinese domestic document, hard to pass ASTM-required overseas audit	Complete ASTM document set, higher unit price
Cut-to-size processing	CNC shearing & flattening available	Limited custom-cut capacity	Supported with higher processing cost
Weldability	Excellent for general structure	Good	Good, pre-heat needed for thick plate
Main disadvantage	Not designed for low-temperature impact-critical structure	Cannot substitute A36 for ASTM-specified international projects	Higher material cost

Mill Production Process and Metallurgical Quality

From Converter to Finished Plate: Quality Controlled at the Source

Steelmaking & Refining: Primary smelting in basic oxygen furnace followed by LF refining and VD to eliminate dissolved gases, ensuring internal soundness for ultrasonic testing.

Continuous Slab Casting: Slabs are cast with dynamic soft reduction to eliminate center porosity and centerline segregation—vital for heavy plates above 50mm thickness.

Controlled Rolling & Cooling: Computer-controlled hot rolling schedules regulate grain size refinement, achieving an optimal balance between yield strength and low-temperature impact toughness.

A36 Medium and Heavy Plate

Why Buyers Specify Sanhe Steel for A36

Certified Every Heat

Each heat is certified. Orders ship with the mill test certificate, and SGS or CQM inspection certificates are available for projects that require them.

Thick Stock, Ready to Cut

Our inventory covers A36 medium and heavy plate from 6mm to 100mm, with about 1,800 tons of medium-heavy plate supply per month. Stock sizes ship in 7–15 days; custom cutting takes 15–25 days.

Processing Under One Roof

Our 80,000 m² facility runs CNC leveling (1.5–25mm, flatness within 2mm/m), automatic slitting, and CNC hydraulic shearing — so plates arrive cut, leveled, and ready for your fabrication shop.

A36 Medium and Heavy Plate

FAQ

Q1: What is A36 medium and heavy plate?

A1: A36 plate is a hot-rolled carbon structural steel plate produced to the ASTM A36 specification. It is commonly selected for general structural fabrication because of its defined mechanical properties and practical welding and processing characteristics.

Q2: What is the yield strength of A36 steel plate?

A2: The commonly specified minimum yield strength for applicable A36 plate is 36 ksi, or approximately 250 MPa. The exact mechanical requirements should be checked against the applicable ASTM specification and plate thickness.

Q3: What is the tensile strength of A36 medium and heavy plate?

A3: The commonly specified tensile-strength range is 58–80 ksi, approximately 400–550 MPa, for applicable A36 plate products.

Q4: Can A36 plate be welded?

A4: Yes. A36 is widely used for welded structural fabrication. The welding procedure should be selected according to the thickness, joint design, welding process and project requirements.

Q5: Can Sanhe Steel cut A36 plate according to drawings?

A5: Yes. Sanhe Steel provides steel processing services including cutting, shearing and leveling, and its website states that customized and irregular dimensions can be processed according to requirements.

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