As a professional manufacturer, GNEE specializes in supplying high-quality ASTM A283 plates tailored for global engineering, structural, and fabrication applications.
GNEE is a leading steel supplier with over 18 years of export experience, advanced production lines, and strict quality control systems. We provide OEM/ODM services, fast delivery, and full MTC certification to ensure every ASTM A283 plate meets international standards. Whether you are sourcing for construction, storage tanks, or machinery manufacturing, we deliver reliable solutions that reduce your procurement risk and improve project efficiency.
ASTM A283 Carbon Steel Plate Overview
ASTM A283 is a standard specification for low and intermediate tensile strength carbon steel plates used in general structural and industrial applications. It is commonly available in four grades: A, B, C, and D, with Grade C being the most widely used due to its balanced mechanical properties.
Key Features of ASTM A283 Carbon Steel Plate
- Excellent weldability and machinability
- Moderate tensile strength for structural use
- Good formability for fabrication projects
- Cost-effective alternative to higher-grade steels
- Suitable for low-pressure and non-critical applications
This makes ASTM A283 an ideal material for industries requiring reliable performance without excessive cost.
ASTM A283 Chemical Properties
| Grade A | Grade B | Grade C | Grade D | |
| Carbon, max | 0.14 | 0.17 | 0.24 | 0.27 |
| Manganese, max | 0.90 | 0.90 | 0.90 | 0.90 |
| Phosphorus, max | 0.035 | 0.035 | 0.035 | 0.035 |
| Sulphur, max | 0.04 | 0.04 | 0.04 | 0.04 |
|
Silicon Plates 1 1/2 in and under, max Plates over 1 1/2 in |
0.40 0.15-0.40 | 0.40 0.15-0.40 | 0.40 0.15-0.40 | 0.40 0.15-0.40 |
| Copper min % when copper steel is specified | 0.20 | 0.20 | 0.20 | 0.20 |
ASTM A283 Mechanical Properties
| Grade A | Grade B | Grade C | Grade D | |
| Tensile Strength: |
45,000 -60,000 psi [310 - 415 MPa] |
50,000 -65,000 psi [345 - 450 MPa] |
55,000 75,000 psi [380 - 515 MPa] |
60,000 -80,000 psi [415 - 550 MPa] |
| Min. Yield Point: |
24,000psi [165 MPa] |
27,000psi [185 MPa] |
30,000psi [205 MPa] |
33,000psi [ 230 MPa] |
| Elongation in 8": | 27% min | 25% min | 22% min | 20% min |
| Elongation in 2": | 38% min | 28% min | 25% min | 23% min |
ASTM A283 carbon steel is an alloy of iron, further classified as a carbon steel. This is steel specification covers four grades of low carbon steel plates of structural quality for general application. Grades A, B, C and D.
ASTM A283 High Strength Steel Plate Applications
ASTM A283 plates are widely used across multiple industries due to their versatility and performance.
Common Application Fields
- Construction structures and building frameworks
- Storage tanks and low-pressure vessels
- Engineering machinery components
- Trailer and transportation equipment
- Crane structural parts
The material is especially suitable for projects that require A283 High Strength Structural Steel Plate or A283 High Tensile Steel Plate for Trailers, where durability and cost control are equally important.
ASTM A283 High Strength Steel Plate Specifications
Product Specifications
| Parameter | Details |
|---|---|
| Standard | ASTM A283 |
| Grades | A, B, C, D |
| Thickness | 6mm – 200mm |
| Width | 1000mm – 3500mm |
| Length | 3000mm – 18000mm |
| Delivery Condition | Hot Rolled |
| Surface | Black, Shot Blasted, Coated |
| Certification | MTC EN10204 3.1 / 3.2 |
This product is also widely supplied as A283 Hot Rolled High Strength Steel Plate and A283 High Strength Steel Plate for Construction.
Comparison between A36 and A283C
ASTM A 283 Gr C consist of four grade of material (A,B,C, & D) of carbon steel plate of structural quality for general application.
ASTM A 36 covers carbon steel plate, shape, and bar of structural quality for use in riveted, bolted or welded construction of bridges and building and for general structural purpose.
From material scope, both ASTM A 36 and ASTM A 283 are the carbon steel of structural quality for general application.
A283 High Strength Steel Plate Manufacturing Process
Production Process Overview
- Steelmaking (BOF/EAF)
- Continuous casting
- Hot rolling
- Heat treatment (if required)
- Surface finishing
- Inspection and testing
GNEE uses advanced equipment and strict inspection procedures, including ultrasonic testing, mechanical testing, and third-party inspections, ensuring consistent quality for every plate.
A283 High Strength Steel Plate Manufacturer Advantages
Why Choose GNEE as Your Supplier
- 18+ years export experience
- Strong OEM & ODM capabilities
- Large inventory for fast delivery
- Competitive pricing for global markets
- Strict quality inspection system
- Professional sales & technical support
As a trusted A283 High Strength Steel Plate Manufacturer, we help customers reduce procurement costs while ensuring stable supply.
A283 High Strength Steel Plate for Engineering Machinery & Construction
Industry-Specific Solutions
A283 High Strength Steel Plate for Engineering Machinery: Used in excavators, loaders, and heavy equipment
A283 High Strength Steel Plate for Crane: Provides stable structural support
A283 High Strength Steel Plate for Construction: Ideal for beams, columns, and frameworks
These solutions ensure durability, reliability, and cost-effectiveness for large-scale projects.
FAQ
What is ASTM A283 material?
ASTM A283 Grade D is a specification for low and intermediate tensile strength carbon steel plates of structual quality for general applications. ASTM A283 Grade D has a specified minimum yield strengths of 33 ksi.
What is the difference between ASTM A283 GR C and A36?
A283 Grade C has slightly lower weldability compared to A36 due to its higher carbon content. A36 is known for its good weldability and can be easily welded using common methods. In summary, ASTM A283 Grade C tends to have higher strength but may have slightly lower weldability compared to ASTM A36
What is SA 283 equivalent material?
ASME SA 283 Gr C equivalent material in EN standard is S235JR steel. S235JR steel has good plasticity, toughness and weldability, certain strength and good cold bending properties.
What is the difference between A283 and A516?
A516 Grade 70 is primarily used in applications where elevated temperatures and pressure are involved, such as in the petrochemical and oil and gas industries. On the other hand, A283 Grade C is used for general structural applications and is not suitable for pressure vessel applications
What is the yield strength of ASTM A283?
ASTM A283 Plates
Grade C has a 55 ksi yield strength minimum and a 0.24% maximum carbon limit. Grade D has a 60 ksi yield strength minimum and a 0.27% maximum carbon limit. Structural Steel: furnished to a chemical composition and defined mechanical properties.
What is the temperature range of ASTM A283 Grade C?
The A283 GR. C PLATES fabricated by our company has a hot working which may initially start from 1650 degrees F and can exceed from 1700 degrees F or subordinate temperatures. Also, the annealing characteristic of our company product starts at 1550 degrees F and ranges up to the 1800 degrees F and relaxed furnace cool.
What is the Indian standard equivalent of ASTM A283?
IS 2062
Is ASTM A283 Grade C equivalent to IS 2062? Yes, IS 2062 Grade B/C is a common Indian equivalent.
What is the difference between A36 and A283 steel?
How does A283 compare to A36? A36 steel has slightly higher ductility and lower strength than A283. When comparing the two, grade C is the most similar in chemical composition.
What is SA 283 equivalent to?
S235JR
Its equivalents include ASTM A283 Grade C, EN 10025 S235JR, and IS 2062 E250, offering similar properties for general fabrication.
Get Quote For ASTM A283 Carbon Steel Plate
Quick Inquiry & Custom Solutions
GNEE provides customized solutions based on your project requirements, including size, thickness, and surface treatment. Our technical team is ready to assist with material selection and cost optimization.
Whether you need A283 Heavy Structural Steel Plate Suppliers or bulk orders for international projects, we are your reliable partner.
Conclusion: ASTM A283 Carbon Steel Plate – Reliable, Cost-Effective, and Ready for Your Project
Choosing ASTM A283 Carbon Steel Plate means selecting a proven, versatile material for construction, machinery, and structural applications. At GNEE, we combine manufacturing expertise, strict quality control, and global supply capability to deliver high-performance steel solutions.
👉 Contact us today to get a competitive quote for ASTM A283 Carbon Steel Plate and boost your project efficiency with a trusted manufacturer!
Relying on many first-class equipment, such as CNC Shearing machine, Press Brake machine, Straightening machine, Roll Bending machine, Flat Bar Machine, Deburring machine etc, GNEE STEEL could provide various semi-productsand extensive forming services to customers.
GNEE STEEL PROCESSING
1.CTL & SL SERVICE (141 SETS)
Currently, GNEE STEEL has imported manyadvanced CTL/SL equipment from Italy and Korea and could provide customized CTL/SL services from cold rolled stainless steel and carbon steel to hot rolled stainless steel and carbon steel as well as strips and ultra-wide sheet.
CTL FACILITIES
Max Length:16500mm
Max Width:2200mm
Max Thickness:25.4mm
Max Yield Strength:1500Mpa
SL FACILITIES
Max Width:2200mm
Max Thickness:18mm
Max slit Quantity:31
Max Yield Strength:1200Mpa
2.CUTTING SERVICE
GNEE STEEL imported lots of advanced cutting machines from Germany, Sweden, America and Japan, including plasmas cutting machine, water jet cutting machine, laser cutting machine, flame cutting machine and saw machine. In order to meet customers' diversified needs, GNEE STEEL also adopts nest working multi-cutting methods and intensive production to improve production capacity and save costs for the customers.
Laser Cutting Machine
Max Cutting Length:40,000mm
Max Width:4,600mm
Max Thickness:100mm
Flame Cutting Machine
Max Cutting Length:40,000mm
Max Width:8,000mm
Max Thickness:500mm
Plasmas Cutting Machine
Max Cutting Length:30,000mm
Max Width:5,000mm
Max Thickness:100mm
Water-jet Cutting
Max Cutting Length:12,000mm
Max Width:4,010mm
Max Thickness:250mm
3.FORMING SERVICE
Steel Plate Roll Bending
Maximum Rolling Thickness: up to 200mm
Maximum Width: 4200mm
Automatic Bending Machine-Press Brake
Max Bending Capability:3000Ton
Max Bending Length:15,000mm
Expert in Bending High-Strength & Wear-Resistant Steels
Punching Machine
Max Width:3,070mm
Max Thickness:8mm
Max Pressure:250t
BEVELING SERVICE
GNEE STEEL beveling platform has edge milling machine, edge planer, flame / plasma groove cutting machine, flame groove cutting robot, desktop chamfering machine, gantry planerand other advanced equipment to provide customers with parts prefabrication services,daily processing of V-type, Y-type, X-type and U-type grooves, and guarantee subsequent processes such as welding and assembly of products.
Milling：
Max Cutting Length:18,000mm
Max Width:4500mm
Max Thickness:120mm
Beveling:
Max Length:16,000mm
Max Thickness:80mm
MACHINING SERVICE
GNEE STEEL owns CNC Portal-type Boring and Milling machine,CNC Floor-type Boring and Milling machine, Vertical Precision 5-axis Milling Machine, Portal-type Planer, Vertical Lathe, Cylindical Grinding machine, Hydraulic Planer and CNC Lathe and could provide fine machining of large spare parts and structural parts for customers.
Gantry Type Boring & Milling Maching Center
Max Length:48000mm
Max Width:12500mm
Max Height:8000mm
Max Diameter:10500mm
Deep-hole Drilling Equipment
Max Driling Depth:1,100mm
Max Bore Diameter:φ80mm
Max Diametar:φ4,500mm
MMulti-hole Drilling Equipment
Max Length:13,000mm
Max Width:10,000mm
Max Bore Diameter:φ105mm
Max Drilling Depth:250mm
Floor Boring And Milling Machine
Max Length:24,000mm
Max Height:8,000mm
Turntable Dimensions:9x5m
Vertical Lathe
Max Height:6,000mm
Max Diametar:φ22,00mm
Automated Edge Milling Machine
The Automated Edge Milling Machine is a leading product in heavy-duty milling equipment. It is primarily used for weld groove preparation (beveling) on large-format plates made of stainless steel, carbon steel, and special steel grades. It can process plates with a maximum thickness of up to 90mm, a length of 16 meters, and a width of 4 meters.
It is equipped with dual milling units and a fully automatic milling cutter head changing system, enabling automated 4-edge beveling. Its standout feature is the profiling technology used when milling wavy plates and irregularly shaped products, which ensures absolute consistency of the groove after milling.
Utilizing specially designed milling cutter heads, it can execute highly difficult and complex groove profiles in a single pass.
Materials: Plain carbon steel, pressure vessel steel, wear-resistant steel, high-strength steel, stainless steel, nickel-based alloys, etc.
Width: 1200 - 4200 mm
Length: 5800 - 16000 mm
Thickness: 5 - 90 mm
Weight: Up to 35 tons
This edge milling machine is the world's premier automated bevel milling equipment. With its excellent structural design and advanced data algorithms, it achieves full automation from plate detection to the actual milling process, significantly improving processing efficiency while guaranteeing high precision.
- Processing Accuracy
Length accuracy: ±1mm when L < 10m; ±2mm when L > 10m;
Width accuracy: ±1mm;
Diagonal accuracy: ±2mm;
Root face accuracy (blunt edge): ±1mm for Y-grooves; +0.5mm for X-grooves.
- Processing Efficiency
The processing efficiency is more than 10 times that of conventional edge milling or edge planing equipment.
HEAT TREATMENT
Heat Treatment Furnace
Max Furnace Size:36x12x13.5m
Max Rated Temperature:1100℃
Max Loading Capacity:800t
Heat Treatment of Pressure Vessels
Heat Treatment of Mining Equipment
Heat Treatment of Tube Sheet
Heat Treatment of Pressure Vessel Head
Case : Steel Plates Supply for 100,000m³ Full Containment Ammonia Storage Tank Project
GNEE STEEL is currently participating in the procurement phase of a 100,000m³ full containment ammonia storage tank project, supplying high-quality steel plates for critical tank components. Due to the corrosive nature of ammonia and the risk of Ammonia Stress Corrosion Cracking (SCC), the project requires strict metallurgical control of materials according to EN 10028-3 standards.
One of the most important technical requirements of this project is the strict limitation of the actual Yield Strength (Re) for all NL2 grade materials. To prevent SCC risks in ammonia storage environments, the actual yield strength must not exceed 390 MPa, regardless of the nominal values specified in the standard or plate thickness ranges. This requirement places higher demands on steelmaking process control, heat treatment stability, and material testing.
Raw high-strength steel plates ready for the 100,000 m³ full containment ammonia storage tank production
Project Materials and Technical Requirements
The project mainly uses P355NL2 and P275NL2 normalized pressure vessel steel plates, which are widely applied in low-temperature storage tanks due to their excellent toughness and weldability.
Key technical specifications include:
- Material grades: P355NL2 and P275NL2 (Normalized)
- Yield strength: Standard minimum / Maximum limited to 390 MPa
- Hardness: ≤ 225 HBW in base material
- Impact testing: Charpy-V notch test at -50°C, minimum 27J
- Certification: EN 10204 3.1 certificate, with optional 3.2 certification
These strict requirements ensure that the steel plates maintain stable mechanical properties and high resistance to ammonia-induced stress corrosion during long-term operation.
Precision rolling and forming of steel plates into curved sections for the 100,000 m³ ammonia storage tank.
Project Plate Quantities and Thickness Distribution
The total steel demand for this ammonia storage tank project is several thousand tons, mainly distributed across different tank sections:
P355NL2 – Inner & Outer Tank Shell Plates
- Lower shell courses: 50 mm thickness – approx. 2,000 tons
- Middle shell courses: 25 mm thickness – approx. 1,400 tons
- Upper shell courses: 10 mm thickness – approx. 500 tons
P275NL2 – Tank Bottom Plates
- Thickness: 10–15 mm – approx. 750 tons
P275NL2 – Suspended Roof Structure
- Thickness: 5–8 mm – approx. 180 tons
S275JR – Outer Roof (Ambient Structure)
- Thickness: 10 mm – approx. 450 tons
To improve tank fabrication efficiency and reduce circumferential welds, the project also requires wide steel plates to minimize welding joints, which helps reduce the potential risk of SCC in ammonia service conditions.
Formed steel segments wrapped and racked for protection, ready for 100,000 m³ ammonia storage tank assembly.
GNEE STEEL provides high-precision steel plate rolling and cylinder fabrication solutions for tank manufacturers worldwide. Send us your plate specifications or fabrication drawings for a fast quotation.
| TYPE | GRADE | SPECIFICATIONS |
| Carbon Steel / Low Alloy Coil | Q235A/B/C/D/Q355B(Q345B)/C/D/E/SS400/SAPH400-C/ASTMA283Grade C |
0.7~2.0*1250/1500mm*C 2.3~19.5*1250/1500/1800/2000mm*C |
| Medium Heavy Plate | Q235B/Q355B(Q345B)/C/D/E | 6.0-200x150mm-4000mmxL |
| Vessel Plate |
Q245R/Q345R/HP295/SA516MGR485/SA516GR70/P355NL2/P275NL2/ S275JR//SPV490/ASTM A537 Class 1/Class 2 |
2.5-120x1500mm-3000mmxL |
| High Strength Steel |
510L/610L/700L/750L/BS600MCK4/BS700MCK2/BS700MCK4/ BS960E/BWELDY700QL2/L4/BWELDY960QL4/HG60D/70D/785D/ Q460D/Q550D/690D/690E/TQ600MCD/TQ700MCD/S700MCD/ WYS600/700/STRENX700MCE/Q490E/Q490D |
1.2-60x 1500mm-2500mmxL |
| Patterned Steel | HQ235A|B | 1.2-60x 1500mm-2500mmxL |
| Wear-resistance Steel |
NM360/400/450/500/NM300TP/400TP/450TP/ ABREX400/450/500/B-HARD450XKY/ CREUSABRO4800/8000/EH C400LE/450LE/500LE/ |
3.0-50x1250mm-3300mmxL |
| Cold Rolled Coil | DC01/RECC/REDT/SPCC/ST12 | 0.5-3.0x1250mm-1500mmxC |
| Galvanized Plate | DC51D+AZ/DC51D+Z/DX51D+Z/SGH340+Z275/Z275/Z120/S350GD+ZM275 | 0.45-3.0x1250mm-1500mmxC |
| Pickled Coil | DD11/SPHC | 2.0-6.0x1500xC |
Stainless Steel Material and Surface Specifications
| TYPE | GRADE | THICKNESS | SURFACE |
| Austenitic | 304/304H/304L/304J1 | 0.25-150mm | 2B/BA/NO.4/8K/SB/HL/NO.1 |
| Austenitic | 321 | 0.4-80mm | 2B/BA/NO.4/8K/SB/HL/NO.1 |
| Austenitic | 316/316L/317L/316Ti | 0.3-80mm | 2B/BA/NO.4/8K/SB/HL/NO.1 |
| Austenitic | 201(J1/J2/J5) | 0.35-12mm | 2B/NO.1/1D |
| Ferrite | 430 | 0.4-3.0mm | 2B/BA/NO.4/8K/SB/HL |
| Ultra Pure Ferrite | 443 | 0.4-2.0mm | 2B |
| Ultra Pure Ferrite | 436L/439/444/441 | 0.5-3.0mm | 2B/2D |
Special Steel / Nickel Base Alloy
| TYPE | GRADE | GRADE (ASTM) | GRADE (EN) | THICKNESS |
| Heat-resistant Steel | 309S | S30908 | 1.4833 | 0.5-40mm |
| Heat-resistant Steel | 310S | S31008 | 1.4845 | 0.5-40mm |
| Duplex Stainless Steel | 2101 | S32101 | 1.4162 | 1.5-50mm |
| Duplex Stainless Steel | 2304 | S32304 | 1.4362 | 3.0-50mm |
| Duplex Stainless Steel | 2205 | S32205/S31803 | 1.4462 | 0.5-60mm |
| Duplex Stainless Steel | 2507 | S32750 | 1.4410 | 1.0-60mm |
| Super Austenitic-Steel | 904L | N08904 | 1.4539 | 0.6-50mm |
| Super Austenitic-Steel | 254SMO | S31254 | 1.4547 | 0.5-50mm |
| Super Austenitic-Steel | 1.4529 | N08926 | 1.4529 | 0.5-50mm |
| Super Austenitic-Steel | AL-6XN | N08367 | 1.4478 | 0.5-50mm |
| Nickel Base Alloy | Alloy 31 | N08031 | 1.4562 | 1.0-50mm |
| Nickel Base Alloy | 800 | N08800 | 1.4876 | 0.8-50mm |
| Nickel Base Alloy | 800H | N08810 | 1.4958 | 0.8-50mm |
| Nickel Base Alloy | 800HT | N08811 | 1.4959 | 0.8-50mm |
| Nickel Base Alloy | Alloy 28 | N08028 | 1.4563 | 1.0-20mm |
| Nickel Base Alloy | Alloy 20 | N08020 | 2.4660 | 1.0-20mm |
| Nickel Base Alloy | 825 | N08825 | 2.4858 | 0.8-40mm |
| Nickel Base Alloy | C276 | N10276 | 2.4819 | 0.5-50mm |
| Nickel Base Alloy | C22 | N06022 | 2.4602 | 1.0-50mm |
| Nickel Base Alloy | 625 | N06625 | 2.4856 | 0.8-20mm |
| Nickel Base Alloy | 400 | N04400 | 2.4360 | 1.0-20mm |
| Nickel Base Alloy | 600 | N06600 | 2.4816 | 1.0-50mm |
| Nickel Base Alloy | Pure Ni 201 | N02201 | 2.4061 | 0.5-20mm |
| Titanium | TA1 | Gr.1 | Class 1 | 0.5-50mm |
| Titanium | TA2 | Gr.2 | Class 2 | 0.5-50mm |
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