3CR12 Stainless Steel

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3CR12 Stainless Steel  
Over the years T.S. Industrial has added various materials to our product offering, the latest addition being that of 3CR12 stainless steel.

3CR12 stainless steel was developed as a superior substitute to coated mild steel, corrosion resistant Cor-ten material and to aluminium, with a life span of almost 250 times that of unpainted mild steel in certain environments.

With 3CR12 being weld able through conventional methods that T.S. Industrial has been perfecting for years, this material has fit right in to our main focus: The Rolling of Welded Steel Open Sections and Profiles.

3CR12 does however have a drawback as it is not as corrosion resistant as higher Chromium containing materials such as CS304 stainless steel and CS430 stainless steel. The use of 3CR12 stainless steel should thus be where aesthetic appearances are not as important.

T.S. Industrial is able to roll form welded structural sections from 3CR12 material. We can roll round, square and rectangular tubes as well as non-welded sections such as lip channels, angle irons and flat bar from the 3CR12 material.

Although we are able to assist you with your 3CR12 enquiries, T.S. Industrial does not stock round square and rectangular cold rolled tubes, lip channels or conduit manufactured from 3CR12 material. Therefore minimum order quantities may apply.

Advantages of 3CR12 Stainless Steel include:

Advantage	Description
Corrosion Resistant	3CR12 has 250 time the life of uncoated mild steel.
Weld able	3CR12 can be welded to other ferrous metals with relative ease.
Formability	Roll forming, bending and pressing can be applied to 3CR12 even though this stainless steel is stronger than mild steel.

Chemical Composition of 3CR12

	%C	%Si	%Mn	%P	%S	%Cr	%Ni
3CR12	0.03	1	2	0.004	0.03	12.5	1.5

Mechanical Properties of 3CR12:

Wall Thickness (mm)	Proof Stress (MPa)	Tensile Strength (MPa)	Elongation (%)	Brinell Hardness
<3	280min 450 max	460 min	18 min	220 max
3-4.5	300 min 450 max	460 min	18 min	220 max
>4.5	300 min 450 max	460 min	20 min	220 max