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Carbon Steel Sheet Plate Specifications Explained | A Practical Buying Guide

Carbon Steel Sheet Plate is one of the most widely used steel materials in construction, machinery, fabrication and industrial projects.
For global B2B buyers, understanding technical specifications is essential to ensure correct material selection, cost control and project safety.

This article focuses on specification fundamentals, providing a clear reference for professional procurement.


Key Specifications of Carbon Steel Sheet Plate


Thickness Range


TypeTypical Thickness
Thin Plate0.5 – 3.0 mm
Medium Plate3.0 – 20 mm
Heavy Plate20 – 200 mm

Width & Length


ItemStandard Range
Width1000 / 1220 / 1250 / 1500 / 2000 mm
Length2000 – 12000 mm
Supply FormFixed length / Random length

Grades & Standards


StandardCommon Grades
ASTMA36, A283, A516
ENS235JR, S275JR, S355JR
JISSS400
GBQ235, Q345

Delivery Condition


ConditionDescription
Hot RolledCost-effective, stable structure
NormalizedImproved mechanical consistency
Stress RelievedSuitable for precision machining

Dimensional Tolerance


ItemTypical Control
Thickness±0.2 ~ ±0.5 mm
Width±2 – 5 mm
FlatnessAs per standard requirement

What Buyers Should Confirm Before Ordering


steel plate


Applicable standard and grade


Thickness tolerance requirements

Inspection documents (MTC, third-party testing)

End-use application (structural / pressure / general fabrication)


Conclusion


Carbon steel sheet plate is not a one-size-fits-all product.
Correct specification selection ensures performance reliability and long-term project efficiency.

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