S240EK AM FCE

Alternative and trade names
Sidemail S235J EK,S235J EK,S235J EQ,Cockemail 240,Email 250

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Description

Hot rolled steels for one-side enamelling are steels with a specific chemical composition, which can guarantee:

Excellent resistance to "fish scale" defects in the enamelled parts

Conservation of mechanical properties after forming and firing of the enamel

Can be supplied pickled or unpickled and oiled or unoiled.

It is used to manufacture water heater tanks with very good mechanical strength and good resistance to in-service stresses. In addition the thickness of the steel can be reduced.

After enamelling, the inside wall of the tank has excellent corrosion, heat and moisture resistance.

This material data has been provided by ArcelorMittal.

"Typical" values were obtained via a literature search. "Predicted" values were imputed via artificial intelligence technology. While we have placed significant efforts in ensuring data accuracy, "typical" and "predicted" data should be considered indicative and verified by appropriate material testing. Please do contact us if additional information on the the predicted data method is required.
All metrics apply to room temperature unless otherwise stated. SI units used unless otherwise stated.
Equivalent standards are similar to one or more standards provided by the supplier. Some equivalent standards may be stricter whereas others may be outside the bounds of the original standard.

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Properties

Dimension

Property	Value
Dimensions	Please feel free to check the figure on the right side of the material page for more details.

Mechanical

Property	Value	Comment
Elongation	27 % Show Supplier Material materials with Elongation of 27 %	min. \| for thickness 1.5-3 mm \| Transverse \| before enamelling, A80
	34 % Show Supplier Material materials with Elongation of 34 %	min. A5.65√So \| for thickness 3-6 mm \| before enamelling \| Transverse
Tensile strength	360 - 430 MPa Show Supplier Material materials with Tensile strength of 360 - 430 MPa	for thickness 1.5-6 mm \| Transverse \| before enamelling
Yield strength	240 MPa Show Supplier Material materials with Yield strength of 240 MPa	min. \| for thickness 1.5-6 mm \| Transverse \| before enamelling

Chemical properties

Property	Value	Comment
Boron	0.004 % Show Supplier Material materials with Boron of 0.004 %	max.
Carbon	0.03 - 0.1 % Show Supplier Material materials with Carbon of 0.03 - 0.1 %
Manganese	0.2 - 0.6 % Show Supplier Material materials with Manganese of 0.2 - 0.6 %
Phosphorus	0.02 % Show Supplier Material materials with Phosphorus of 0.02 %	max.
Sulfur	0.015 % Show Supplier Material materials with Sulfur of 0.015 %	max.
Titanium	0.04 % Show Supplier Material materials with Titanium of 0.04 %	max.

Technological properties

Property

Application areas

Hot rolled steel for one-side enamelling are mainly intended for the manufacture of tanks for water heaters. It can also be used for enamelled tubes or coiled pipes.

Coating

Surface preparation and enamelling of water heaters

The surface must be treated by pickling or shot blasting.

Enamel can be applied in a wet or dry process.

Firing is performed at a temperature of about 830°C.

Conservation of mechanical properties after enamelling

The mechanical properties of hot rolled steel for one-side enamelling remain unchanged after forming and firing of the enamel. This offers the following advantages:

It extends the life span of water heaters by increasing their fatigue safety margin

The thickness of the steel can be reduced, thereby reducing the cost of the raw materials for the water heater. Simulation and calculation tools at your disposal in our laboratories will enable us to optimise the thickness required for the piece and arrive at the best balance between cost and technical requirements

Processing methods

Forming of hot rolled grades for one-side enamelling presents no particular problems:

Grade S240EK AM FCE is preferable for deep drawn top and bottom parts

All the usual welding processes can be used (TIG, MIG, seam welding, laser).

S240EK AM FCE

Description

Ashby charts

Materials by this supplier

Properties