ThePipingMart Blog Grades 3CR13 Stainless Steel – Composition, Properties and Uses

3CR13 Stainless Steel – Composition, Properties and Uses

3cr13 Stainless Steel

Stainless steel is an alloy that consists of iron and at least 10.5% chromium. Chromium makes the steel corrosion-resistant and gives it its distinct shine. The stainless steel grade 3cr13 is a type of stainless steel formulated for applications such as cutting tools, pipes and fittings. It contains 0.3% carbon, which makes it semi-porous, giving it greater strength than comparable grades of stainless steel with more carbon. In more detail, let’s explore the composition, mechanical properties, physical properties, and uses of 3cr13 stainless steel.

3CR13 Stainless Steel Composition

3cr13 SS is composed primarily of iron (Fe), with 13% chromium (Cr) and a maximum of 0.3% carbon (C). Additionally, it has trace amounts of manganese (Mn), phosphorus (P), sulfur (S), silicon (Si) and nitrogen (N).

Chemical Composition %
Steel Grade C Si (≤) Mn (≤) P (≤) S (≤) Cr Ni (≤)
0.26-0.35 1.00 1.00 0.040 0.030 12.00-14.00 0.60

3CR13 Stainless Steel Mechanical Properties

The mechanical properties of SS 3cr13 are quite impressive compared to other types of stainless steel. It has a tensile strength range from 70-85 ksi, a yield strength range from 40-50 ksi, an elastic modulus range from 28 to 29 million psi, and an elongation range from 10-15%. Furthermore, this type of stainless steel has good hardness ratings up to HRC52 on the Rockwell C scale.

3CR13 Stainless Steel Physical Properties

The physical properties of grade 3cr13 are also quite remarkable, with a density ranging from 7600-7700 kg/m³ and an electrical resistivity ranging from 1.39 x10³ Ω·m to 1.47 x10³ Ω·m at 20°C. Moreover, it has an excellent magnetic permeability rating of up to 100 relative permeability units at RT or room temperature, making it suitable for use in industrial applications such as magnetic sensors or motors where magnetic fields are present.

3CR13 Stainless Steel Equivalent

China USA European Union Japanese ISO
Standard Grade Standard Grade Standard Grade Standard Grade Standard Grade
GB/T 1220;
GB/T 3280
3Cr13 (30Cr13) AISI SAE;
ASTM A276/A276M
420 EN 10088-2 X30Cr13 (1.4028) JIS G4303 SUS420J2 ISO 15510 X30Cr13

3CR13 Stainless Steel Uses

Thanks to its combination of mechanical properties and physical properties, there are many potential uses for 3cr13 stainless steel, including cutlery blades like knives or other kitchen utensils; fasteners like nuts and bolts; hand tools like wrenches; industrial equipment like valves or pumps; medical components like needles; automotive parts like exhaust systems; pressure vessels like tanks; marine components like propellers; architectural components like cladding; military components like armour plating; construction materials such as structural beams or columns; food processing equipment such as heat exchangers or conveyor belts; transportation infrastructure components such as bridge supports or guardrails; agricultural machinery parts such as tractors or combines; machine tool components such as lathes or presses; and even aerospace parts such as landing gear or control surfaces!

3CR13 Stainless Steel Hardness

3cr13 stainless steel is an extraordinarily durable material, boasting a HH (Rockwell C) hardness rating of 48-54. Its strength comes from its chemical makeup of chromium, nickel and molybdenum. These elements give the steel anti-corrosive properties that make it ideal for various applications, from medical appliances to electrical components and even knives! Its durability makes it one of the top choices when high wear resistance and a solid surface are required. Anyone looking for a sturdy, rust and scratch-resistant material would be well served with 3cr13 stainless steel.


As you can see, there are many great reasons to consider using 3cr13 stainless steel in your next project! Its great combination of mechanical properties, physical properties, corrosion resistance, formability and malleability make it one the most versatile types of stainless steel available on the market today! Whether you need a strong yet malleable material for construction projects or something that can withstand extreme temperatures in aerospace engineering applications – this type of stainless steel could be just what you’re looking for!

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