Chemical Composition Table

Element	Carbon (C)	Silicon (Si)	Manganese (Mn)	Phosphorus (P)	Sulfur (S)
% Range	1.15–1.24	≤0.35	≤0.40	≤0.035	≤0.030

Mechanical Properties

Property	Value / Description
Hardness (HRC)	62–65 HRC
Tensile Strength	~700–900 MPa
Elongation (%)	<5% (Very low)

Common Sizes

Category	Details
Width	600mm, 750mm, 840mm, 900mm, 1000mm, 1200mm
Length	Customizable, common range: 1m - 12m (3m - 6m more typical)
Thickness	0.15mm - 0.8mm (0.4mm - 0.6mm for general use)

Comparison with Similar Steels

Steel Grade	Carbon (%)	Hardness (HRC)	Primary Use
T12 (GB)	1.15–1.24	62–65	Cutting tools, wear parts
AISI 1095	0.90–1.03	60–63	Knives, springs
AISI W1	1.00–1.10	60–64	Precision tools

Advantages of T12 High Carbon Steel Plate

Advantage	Description
High Hardness	Achieves around HRC 60 - 65 after heat treatment, resists wear and deformation, suitable for cutting tools and dies.
Excellent Wear Resistance	Carbides formed by high carbon content provide good wear resistance, maintain dimensional stability and surface quality under long-term friction.
Good Dimensional Stability	Low thermal expansion coefficient, little dimensional change during heat treatment and use, beneficial for high-precision applications.
High Compressive Strength	Can withstand significant pressure without deformation, applicable to dies and molds under high pressure.

Standards

Country/Standard Organization	Standard Designation
China Taiwan (CNS)	SK120
Germany (DIN)	Material number 1.1663, Grade C125W2
France (AFNOR)	Y2120
France (NF)	C12E3U
Italy (UNI)	C120KU
Spain (UNE)	(C120)
Japan (JIS)	SK120
USA (ASTM/AISI/SAE)	W1A-11½
USA (UNS)	T72301
Russia (ΓOCT)	У12 (Y12 in English transcription)
International Organization for Standardization (ISO)	TC120
Sweden (SS)	1885
UK (B5)	BW1C
South Korea (KS)	STC2

Packaging

Packaging Aspect	Details
Surface Protection	Coated with anti-rust oil or protective film to prevent rust and scratches.
Inner Packaging	Individually wrapped with plastic film or kraft paper, bundled with straps for fixation.
Outer Packaging	Placed in wooden crates or steel racks; can be covered with tarpaulins for protection against moisture.

FAQ

Q: What is T12 steel?

A: T12 is a high-carbon tool steel (1.15–1.24% carbon) known for its extreme hardness and wear resistance, commonly used for cutting tools, blades, and wear-resistant parts.

Q: What are the main advantages of T12 High Carbon Steel Plate?

A: Its main advantages include high hardness (up to around HRC 60 - 65 after heat treatment), excellent wear resistance due to carbide formation, good dimensional stability, high compressive strength, and relatively low cost compared to some alloy tool steels.

Q: Is it easy to machine?

A: No. Its high hardness needs special cutting tools like carbide - tipped ones.

Q: How to package it?

A: Coated with anti - rust oil, wrapped in plastic/kraft paper, and packed in wooden crates.

Q:What is your minimum order quantity?

A: Usually 10 tons, special circumstances can be negotiated.

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