BAOSTEEL METAL   /   STEEL PLATE MANUFACTURER

ASTM A283
Grade C
Steel Plate

Hot-Rolled Carbon Steel Plate   |   ASTM A283/A283M-24

205 MPa MIN. YIELD380–515 MPa TENSILEFACTORY SUPPLY

8 MILLION MT ACTUAL ANNUAL STEEL PRODUCTION

Your A283 Grade C plate order starts with a clear factory quote.

Source ASTM A283 Grade C plate for fabricated structures, equipment supports and bulk steel distribution. Send your plate sizes, total tonnage and destination port for pricing and supply confirmation.

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Review grade specifications
8 Million MTActual annual steel production
1 Million MTRegular combined steel inventory
500,000 m²Factory area
1,000+Employees
PRODUCT DATA FOR YOUR RFQ

ASTM A283 Grade C Steel Plate Specifications

Use the ordered grade, plate dimensions and inspection scope to match your materials list and fabrication drawings.

GradeASTM A283 Grade C / A283 Gr.C
Material standardASTM A283/A283M-24
Product typeLow- and intermediate-tensile-strength carbon structural steel plate
General delivery and tolerancesASTM A6/A6M, as applicable to the purchase specification
Supply formHot-rolled mill plate; finished plate from coil where applicable and tested to ordered requirements
SurfaceHot-rolled mill finish
Plate sizesThickness × width × length specified in your RFQ; availability confirmed per order
EdgeMill edge or cutting-edge requirement stated in your order
Material documentationHeat analysis, tensile test results, material identification and agreed MTC
Quotation basisPlate size, number of pieces / MT, delivery terms and destination
WHERE YOUR PLATES ARE USED

ASTM A283 Grade C Steel Plate Applications

Choose A283 Grade C for fabrication and general structural work with moderate strength requirements. Match your plate grade and thickness to the applicable drawings and design codes.

Equipment Bases & Structural Frames

Order flat plate stock for steel support frames, machinery mounting bases and fabricated brackets.

General Plate Fabrication

Source A283 Grade C plate for welded assemblies and non-pressure steel structures to suit your project drawings.

01 / FABRICATION

Support & Base Plates

Base and mounting plates for fabricated equipment frames and general steel structures.

02 / EQUIPMENT

Industrial Brackets

Plate components for equipment attachments, braces and welded support details.

03 / FACILITIES

Platforms & Access Steelwork

General plate components used in support assemblies and industrial access structures.

04 / TANK PROJECTS

Atmospheric Tank Structures

Plate material for tank-associated structural work according to the applicable project specification.

05 / FABRICATION

Gussets & Connection Plates

Plates shaped and drilled for steel joints and fabricated support connections.

06 / DISTRIBUTION

Service-Center Plate Supply

Standard plate stock for distributors preparing multiple fabricated steel orders.

Have a complete A283 Grade C cutting list?
MANUFACTURING & SUPPLY

Why Buyers Work With BAOSTEEL METAL

Coordinate your plate purchases with a manufacturing partner backed by steel output, combined inventory, quality checks and export supply planning.

01 / MANUFACTURING

8 Million MT Annual Production

Your supply planning is supported by 8 million metric tons of actual annual steel production across the company's steel operations.

Manufacturing facilities ↗
02 / INVENTORY

1 Million MT Regular Inventory

Use our combined steel inventory and production supply network to discuss availability against your required A283 dimensions.

Steel inventory ↗
03 / QUALITY

Inspection You Can Specify

Include mill test certificates, heat identification, dimensional checks and third-party inspection requirements with your purchase order.

Quality control ↗
04 / EXPORT

Order-Based Export Coordination

Share your port, packing requirements and delivery terms for a quotation built around your shipment plan.

TECHNICAL REFERENCE

ASTM A283 Grade C Chemical Composition

Review the key heat-analysis limits and request your MTC with the exact chemical results of the supplied heat.

Grade C Heat-Analysis Limits

ElementRequirement
Carbon (C)≤ 0.24%
Manganese (Mn)≤ 0.90%
Phosphorus (P)≤ 0.030%
Sulfur (S)≤ 0.030%
Silicon (Si), plate ≤ 40 mm≤ 0.40%
Silicon (Si), plate > 40 mm0.15–0.40%
Copper (Cu), when specified≥ 0.20%

Reference heat-analysis limits for Grade C. Material acceptance follows the specified ASTM edition, applicable supplementary requirements and the actual mill test certificate.

Grade C Mechanical Requirements

PropertyGrade C reference
Minimum yield point205 MPa (30 ksi)
Tensile strength380–515 MPa (55–75 ksi)
Elongation, 50 mm gauge length25% min.
Elongation, 200 mm gauge length22% min.
Thickness / width / length tolerancesASTM A6/A6M as applicable

Test orientation and permitted elongation adjustments follow ASTM A6/A6M and the agreed steel plate specification.

YOUR ORDER TONNAGE

A283 Grade C Steel Plate Weight Calculator

Estimate the total theoretical weight of your plate schedule using finished dimensions and the number of pieces.

Calculate Your Plate Weight

Estimated total theoretical weight11.304 MT1,130.4 kg per plate

Nominal steel density: 7,850 kg/m³. The calculation is an estimate; final order weight depends on actual dimensions, tolerances and the agreed billing method.

What to Send for Factory Pricing

Prepare one clear RFQ with the details your buyer or fabrication team already uses.

  • Grade: ASTM A283 Grade C
  • Thickness, width and length for each size
  • Required metric tons or number of plates
  • Destination port and requested delivery terms
  • Heat traceability, MTC and inspection requirements
  • Cutting drawings or packing instructions, when applicable
PRODUCT DETAILS

A283 Grade C Plate Surface & Edges

Review the hot-rolled finish and requested edge condition before your purchase is confirmed.

Natural Hot-Rolled Surface

Show the genuine as-rolled texture of the supplied carbon steel plate.

Edge & Dimensional Inspection

Specify mill edge or cut edge, along with agreed thickness and flatness tolerances.

FACTORY PRODUCTION

Steel Plate Manufacturing Supply

Your plate procurement is supported by BAOSTEEL METAL's steel manufacturing operations, steel-handling facilities and order coordination.

  • Annual steel production: 8 million metric tons across the company's operations
  • Factory area: 500,000 m² and 1,000+ employees
  • Purchase specifications reviewed against the required finished plate product
INVENTORY & SHIPPING PLAN

Confirm Your A283 Grade C Plate Availability

Share your dimensions, total tonnage and delivery date. Our sales team will check current Grade C plate availability and production arrangements for your order.

  • Regular combined steel inventory: 1 million metric tons
  • Plate availability confirmed by grade and finished dimensions
  • Shipment planning based on your destination and purchase terms
MTC & VERIFICATION

Quality Control for Your A283 Plate Order

Include the required standard edition, test certificate format and inspection scope with your steel plate RFQ.

  • Grade C heat analysis and mechanical test results
  • Plate marking, identification and heat traceability
  • Thickness, width, length and surface condition inspection
  • Optional third-party witnessing and supplementary testing by agreement
OPTIONAL PROCESSING

Plate Cutting for Your Drawings

Send your A283 Grade C drawings or cutting schedule with the RFQ. We can confirm suitable processing routes, dimensions, tolerance and pricing for your order.

Laser CuttingDetailed shapes and cutouts for suitable plate thicknesses.
Plasma & Flame CuttingProfile cutting for industrial plate fabrication.
Drilling & Custom DimensionsHole patterns, cut lengths and other drawing-based requirements.
EXPORT ORDER EXECUTION

Packing & Delivery for Your Steel Plate Order

Include the discharge port, handling method and packing preferences in your RFQ. Your confirmed contract will specify the packing, inspection and shipping arrangements.

  • Strapped plate packs and suitable supports based on order requirements
  • Plate identification by grade and heat reference
  • Container or break-bulk shipment planning where applicable
BUYER QUESTIONS

ASTM A283 Grade C Plate Purchasing Questions

Quick information to help you prepare the steel plate inquiry.

Which ASTM standard applies to A283 Grade C plate?

ASTM A283/A283M covers Grade C carbon steel plates for general structural applications. ASTM A6/A6M provides applicable general plate requirements.

What are the minimum yield and tensile strengths?

Grade C specifies a 205 MPa minimum yield point and a tensile strength range of 380–515 MPa. Your MTC provides test results for the supplied material.

What details help you prepare a quotation?

Send your thickness, width, length, quantity, destination and required inspection documents. Include cutting drawings when you need processed plates.

Can I request a mill test certificate?

Add your certificate and heat-traceability requirements to the RFQ. The sales team will confirm the available documentation and test scope.

DIRECT FACTORY INQUIRY

Request ASTM A283 Grade C Plate Pricing

Share your plate list, quantity and destination. Receive an order-specific quotation from BAOSTEEL METAL.

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