X42 AM FCE

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Description

This steel is manufactured to the highest quality standards in order to meet the most stringent specifications. The reference standard is API 5L (American Petroleum Institute).

Special requirements such as HIC (hydrogen-induced cracking) resistance or high ductility at low temperature can be met to provide a solution for every pipeline project.

This steel for pipes has very high tensile strength and excellent toughness at very low temperatures and in heavy gauges. In addition, its special chemical composition with a particularly low carbon equivalent value gives it good weldability. The consistent mechanical properties of this steel improves its forming and welding performance.

Related Standards

Equivalent Materials

EN L290MB

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.

Ashby charts

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Properties

General

Property	Value	Comment
Carbon equivalent (CEV)	0.4 [-] Show Supplier Material materials with Carbon equivalent (CEV) of 0.4 [-]	max.

Dimension

Property	Value
Dimensions	For thicknesses over 20 mm, please contact us. Please feel free to check the figure on the right side of the material page for more details.

Mechanical

Property	Temperature	Value	Comment
Charpy impact energy	0 °C	40 J Show Supplier Material materials with Charpy impact energy of 40 J	min. \| for thickness 5-25 mm \| Transverse
Drop-weight tear test	10 °C	100 % Show Supplier Material materials with Drop-weight tear test of 100 %	min. \| for thickness 5-25 mm
Elongation		21 % Show Supplier Material materials with Elongation of 21 %	min. \| for thickness 5-25 mm \| Transverse \| A50
Tensile strength		415 - 585 MPa Show Supplier Material materials with Tensile strength of 415 - 585 MPa	for thickness 5-25 mm \| Transverse
Yield strength		290 - 495 MPa Show Supplier Material materials with Yield strength of 290 - 495 MPa	for thickness 5-25 mm \| Transverse
Yield to strength ratio		0.85 [-] Show Supplier Material materials with Yield to strength ratio of 0.85 [-]	for thickness 5-25 mm \| Transverse

Chemical properties

Property	Value	Comment
Aluminium	0.015 - 0.06 % Show Supplier Material materials with Aluminium of 0.015 - 0.06 %
Carbon	0.22 % Show Supplier Material materials with Carbon of 0.22 %	max.
Chromium	0.3 % Show Supplier Material materials with Chromium of 0.3 %	max.
Copper	0.25 % Show Supplier Material materials with Copper of 0.25 %	max.
Manganese	1.3 % Show Supplier Material materials with Manganese of 1.3 %	max.
Molybdenum	0.1 % Show Supplier Material materials with Molybdenum of 0.1 %	max.
Nickel	0.3 % Show Supplier Material materials with Nickel of 0.3 %	max.
Niobium	0.05 % Show Supplier Material materials with Niobium of 0.05 %	max.
Nitrogen	0.012 % Show Supplier Material materials with Nitrogen of 0.012 %	max.
Phosphorus	0.025 % Show Supplier Material materials with Phosphorus of 0.025 %	max.
Silicon	0.45 % Show Supplier Material materials with Silicon of 0.45 %	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.
Vanadium	0.05 % Show Supplier Material materials with Vanadium of 0.05 %	max.

Technological properties

Property
Application areas	ArcelorMittal's steels for pipes are particularly suitable for manufacturing: Straight ERW pipes of up to 26” diameter Spiral SAW pipes Spiral SAW and straight ERW pipes made with this type of steel are a good alternative to UOE pipes (made from plate from quarto roll mills) or seamless pipes. These steels are used for the production of pipes for the transport of gaseous or liquid materials such as water or oil.
Chemical composition	Notes: 1.A ratio Al/N ≥ 2 shall be applied. 2. The sum of the percentages by mass of the three elements niobium, titanium and vanadium shall not exceed 0.15%.
Hydrogen induced cracking	HIC-resistant Since the dimensions available are constantly changing, please contact us for specific information.
Other	The mechanical properties of the pipes will depend on: The Bauschinger effect, which in turn depends on The grade and chemical composition of the steel The type of pipe (ERW or SAW) The type of pipe manufacturing line The post-treatment (full body post-heating/stress relieving post-heating) that is sometimes performed by the client The angle of the weld on spiral tubes (this will influence the direction of the tensile test with respect to the rolling direction) The evolution of the mechanical properties - and in particular of the difference in yield strength between the sheet and the pipe - is specific for each process. It is therefore very important to indicate both the forming and the welding process as well as the aforementioned sheet/pipe difference. An agreement between ArcelorMittal and the client on the coil mechanical properties to be guaranteed must be reached prior to delivery of the coils. The mechanical properties listed above are those of the pipes. The minimum elongation given above refers to a 610 mm diameter pipe with a wall thickness of 12.7 mm.
Welding	The chemical composition of this steel ensures that there is no risk of cold cracking and simply applying the normal welding rules is sufficient to achieve a good quality weld. For SAW welding, the choice of an SA1 AM FCE flux/wire combination for grades up to X46 AM FCE, and an SA2 AM FCE for higher grades, should produce a weld with a coefficient greater than 1 and a good degree of toughness at the centre of the weld.