3Cr13 is a martensitic stainless steel that can be hardened by quenching and tempering to achieve the required hardness. It is valued for its affordable price, moderate corrosion resistance and sufficient mechanical properties and is widely used in various fields.

Here are the key features of 3Cr13:

• Corrosion Resistance: It has good corrosion resistance compared to higher grade stainless steels. It is suitable for applications in mildly corrosive environments.

• Hardness: It can be hardened by heat treatment to a hardness of about HRC 50-55.

• Strength: It offers moderate strength and is suitable for many industrial and household applications.

• Machinability: Generally good and easy to fabricate

• Edge Retention: It is known for its ability to hold a sharp edge, making it suitable for knives and cutting tools.

Chemical Composition

Grade	C≤%	Si≤%	Mn≤%	P≤%	S≤%	Ni≤%	Cr
1.4028/420J2/3Cr13	0.26~0.35	1.00	1.00	0.040	0.030	0.60	12.00~14.00

Standards

EU EN	JAPAN JIS	China GB	USA ----
1.4028	SUS 420J2	30Cr13	420;S42000

Physical Properties Parameters

Density Kg/20℃	Melting point/℃	Specific heat/ [kJ/(kg· K)] 0℃~100℃	Thermal conductivity/[W(m·K)]		Linear expansion coefficient/(10-6/K)		ResistivityΩ·mm2/m) 20℃	Longitudinal elastic modulus(kN/mm2)20℃
			100℃	500℃	0~100℃	0~500℃
7.76	1365	0.47	25.1	25.5	10.5	12.0	0.52	219

Fields of Application

Mainly used in the tool industry, it can also be used for nozzles, valve seats, valves, etc.

Application: Common applications include blades, surgical instruments, needle valves, cutting tools and certain types of molds.

Mechanical Properties

Tensile strength(Min)	Yield Strength(Min)	Elongation(Min)%	Hardness(Max)
Mpa	Mpa	50mm	HRB	HV	HRC
540	225	18	99	247	55

Supply Size

Thickness		Thickness Tolerance	Width		Width Tolerance
mm	inches	mm	mm	inches	mm
0.05-1.2	0.002-0.047	MIN ±0.003mm	4.2-700	0.165-27.580	MIN ±0.02
1.2-4.5	0.047-0.122	MAX ±0.05mm	21-775	0.8274-30.535	MAX ±0.1
3.0-25.4	-		600-2000	-

(Length: coil type or it can be produced as customer requirements)

Inner and Outer Diameter

Inner Diameter	300、400、500（Customized according to the customer's machine size）
Outer diameter	The outer diameter range is determined based on the width of the material required by the customer and the maximum weight of a single trailer.

The weight of a single trailer generally does not exceed 2 tons to ensure that the goods will not be damaged during transportation and moving.

Surface

DSM offers a variety of different surface treatments for stainless steel plates. There are1U, 1C, 1D, 1E, 2B, BA, No.4, TR, HL etc.

Edge

The edge of the steel strip is trimmed, and the burr height is 10% mm. If there are special requirements for the edge, it can be scraped.

Supply form

DSM has a professional team and adopts a variety of packaging standards to ensure that the products arrive at the customer's warehouse intact. After packaging, the product looks neat and beautiful, and it can also prevent rust, moisture, dust, pressure, collision, and scratches. Small wooden blocks are placed in the middle to facilitate customers to move the steel belt.

Optional packaging materials: waterproof paper, blue film, plastic wrap, internal and external corner guards, paper, blue leather, plastic cloth, customized wooden racks, fumigated wooden racks, iron racks, wooden boxes, wooden strips, iron corner guards, wrinkled wire paper, desiccant, isolation board, etc.

Packaging Directions

Label: The label on each pallet shows the relevant material information, including coil number, steel type, size, net weight, etc.; it is convenient for customers to count the goods.