S55C Carbon Steel Plate — Factory Direct Supplier | Huaxia-Steel

S55C carbon steel plate is a medium-high carbon grade under JIS G4051. With approximately 0.52–0.60% carbon, it offers higher strength and wear resistance than general structural grades, making it popular for molds, dies, machine components, and wear parts. Huaxia-Steel supplies hot-rolled S55C plates from Chinese mills in a wide thickness range.

Product Overview

S55C is often used in the annealed or normalized condition before final machining and heat treatment. Our plates are suitable for applications that require subsequent quenching and tempering to achieve surface hardness and core toughness.

Specifications

Item	Details
Grade	S55C per JIS G4051
Thickness	6 mm – 150 mm
Width	1000 mm – 2500 mm
Length	2000 mm – 12000 mm (cut-to-length)
Delivery condition	Hot rolled, annealed, normalized, or QT
Tolerance	JIS G3193 / EN 10029
Surface	Mill scale, shot-blasted, peeled

Available Grades

For buyers comparing carbon levels, we also stock:

S45C – 0.42–0.48% carbon
S50C – 0.47–0.53% carbon
S55C – 0.52–0.60% carbon
S60C – 0.55–0.65% carbon
C50E / C55E – EN equivalents

Manufacturing Standards

JIS G4051 (mechanical structural carbon steels)
JIS G3193 (dimensional tolerances)
JIS G1253 (spectroscopic analysis)
ASTM A830 (when cross-certified)

Applications

Plastic and rubber molds
Die plates and backing plates
Gears, shafts, and cams
Agricultural machinery parts
Wear strips and liners

Quality Assurance

Each plate is supplied with a mill test certificate showing carbon content, tensile properties, and hardness. For QT plates, we report quenching and tempering parameters and final hardness. Third-party inspection and ultrasonic testing are available on request.

Packing and Shipping

S55C plates are stacked and bundled with steel straps. We protect machined or ground surfaces with wooden separators and rust-preventive oil. Container and bulk shipments are both supported.

Why Buy S55C Carbon Steel Plate from Huaxia-Steel?

Direct mill pricing for medium-carbon plate
Annealed, normalized, and QT options
Reliable JIS certification
Cut-to-length and surface finishing services
Export experience to Asia, Europe, and the Middle East

Request a quote for S55C carbon steel plate. Share your required thickness, dimensions, condition, and quantity, and we will prepare a competitive offer.