Properties

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

 

Two grades are available to match the requirements of different applications: S240EK AM FCE and S300EK AM FCE, which can be supplied pickled or unpickled and oiled or unoiled.

Advantages

Grades S240EK AM FCE and S300EK AM FCE are used to manufacture water heater tanks with very good mechanical strength and good resistance to in-service stresses. In addition, by using these grades, and S300EK AM FCE in particular, the thickness of the steel can be reduced.

 

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

Applications

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

Formability

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

 

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

Technical properties

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:

Brand correspondence

 Old brand names
S240EK AM FCE Sidemail S235J EK/S235J EK/S235J EQ/Cockemail 240/Email 250
S300EK AM FCE Sidemail S275J EK/Cockemail 280/Email 300

Dimensions

Hot rolled steel for one-side enamelling: pickled

Thickness (mm)S240EK AM FCES300EK AM FCE
Min widthMax widthMin widthMax width
1.50 ≤ th < 1.6062812506601320
1.60 ≤ th < 1.8060014001400
1.80 ≤ th < 1.9015206001545
1.90 ≤ th < 2.0015751595
2.00 ≤ th < 2.1016251638
2.10 ≤ th < 2.201685
2.20 ≤ th < 2.2517401660
2.25 ≤ th < 2.3017701738
2.30 ≤ th < 2.401800
2.40 ≤ th < 2.501855
2.50 ≤ th < 2.7518851838
2.75 ≤ th < 3.001938
3.00 ≤ th < 4.0020002000
4.00 ≤ th < 6.00660
6.00 ≤ th < 6.45628
6.45 ≤ th < 6.501565-1565
6.50 ≤ th < 6.6015501550

Hot rolled steel for one-side enamelling: unpickled

Thickness (mm)S240EK AM FCES300EK AM FCE
Min widthMax widthMin widthMax width
1.50 ≤ th < 1.7060012506601320
1.70 ≤ th < 1.8014601498
1.80 ≤ th < 1.9015201545
1.90 ≤ th < 2.0015751598
2.00 ≤ th < 2.2016301635
2.20 ≤ th < 2.301740
2.30 ≤ th < 2.4018001735
2.40 ≤ th < 2.501855
2.50 ≤ th < 2.7018851838
2.70 ≤ th < 2.801860
2.80 ≤ th < 2.901885
2.90 ≤ th < 3.301935
3.30 ≤ th < 6.1020352035
6.10 ≤ th < 16.0021371885
16.00 ≤ th < 25.00---

Mechanical properties

 
Direction
Thickness (mm)
Re (MPa)
Rm (MPa)
A80 (%)
A 5.65√So (%)
S240EK AM FCET1.5 - 3≥ 240360 - 430≥ 27-
3 - 6-≥ 34
S300EK AM FCET1.5 - 3280 - 420360 - 500≥ 25-
3 - 5260 - 420-≥ 30

(before enamelling)



Chemical composition

 
C (%)
Mn (%)
P (%)
S (%)
Ti (%)
B (%)
S240EK AM FCE 0.030 - 0.100 0.20 - 0.60 ≤ 0.020 ≤ 0.015 ≤ 0.040 ≤ 0.0040
S300EK AM FCE 0.030 - 0.100 0.20 - 0.60 ≤ 0.020 ≤ 0.015 ≤ 0.040 ≤ 0.0040


For commercial information (quotations, deliveries, product availability):

For technical questions about these products: flateurope.technical.assistance@arcelormittal.com


All details provided in the ArcelorMittal Flat Carbon Europe S.A. catalogue are for information purposes only. ArcelorMittal Flat Carbon Europe S.A. reserves the right to change its product range at any time without prior notice.