C40 Carbon Structural Steel Plate Sheet

Product Type - Steel Plate Sheet

C40 steel plate is one mainly of high carbon steel, EN 10083 C40 steel plate is medium Carbon Steels are similar to low carbon steel except that the carbon ranges from 0.30 to 0.60% & the manganese from 0.50 to 1.65%. Increasing the carbon content is approximately 0.5% with an accompanying increase in manganese allows medium carbon steels to be used in quenched & tempered conditions. the steel is of particular importance because of its unique combination of strength & toughness after heat treat treatment.


Availability : IN STOCK


  • High Precision Dimension: The carbon steel plate has excellent processing technology good molding and easy welding. Thickened material, stable performance, and high hardness, not easy to rust.
  • Low Friction: Low dissipation factor. More durable than most ordinary domestic bearings. Lower operating costs​
  • Life Is Long: High-quality steel through strict quality inspection, quality control layer-by-layer detection, and reliable quality, long service life.
  • Customization: Drawings and samples can be processed and customized. Conventional large-scale spot, non-standard customization.
Product Name C40 Carbon Structural Steel Plate Sheet
Thickness 0.2-1250mm. or as your request
Width 0.5m-3m or as required
Length 1m-13m or as required
Surface Finish All Sizes Can be customzied
Certifications ISO 9001 BV SGS
Packing Industry standard packaging or according to client’s requirement
Payment terms T/T or LC at sight
Trade Terms EXW, FOB, CIF, CFR
Delivery time Fast delievery in 7 days, up to order quantity
Quality Mill Test Certificate supplied with the shipment, third part inspection is acceptable
Packing Detail Standard export package:Wooden pallet +paperboard +steel strip Customized requirements are accepted
Cutting Type All Sizes Can be customzied
MOQ 1 Ton
Capacity 10, 000 ton per month

C40 Grade Worldwide Equivalents

China | GB 3077 40
USA | ASTM A29 1040
Japan | JIS G4051 S40C
UK |BS970 080M40
France | NFA 33-101 AF60-C40

Carbon Structural Steel AISI C40 Chemical Composition(%)

Standard Grade C Si Mn P S
DIN 17200 CK40/1.1186 0.37-0.44 ≤0.4 0.50-0.80 ≤0.035 ≤0.03

Mechanical properties of C40

Tensile Strength Yield Strength Elongation Reduction of Area Impact Charpy-V
Mpa Mpa % % J
≥570 ≥335 ≥19 ≥45 ≥47

Processing Flow

Our Certifications

Packaging and Shipping

1. Wood pallet packing cover with water-proof paper

2. Steel pallet packing cover with water-proof paper

3. Wood box packing

4. Steel pallet packing cover with steel box

5. In bundles with steel strip no extra packing

All Grades We are Supplying

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