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CARBON STEEL

EN19, also recognized 708M40 in BS 970 standard, is a high-quality alloy steel for general mechanical and engineering purposes. EN19 steel is characterized by its 1% chromium and molybdenum content. It is also regarded as equivalent steel grade to 42CrMo4 steel in EN standard or 4140 steel in ASTM standard. EN19 steel material is known for its excellent combination of toughness, strength, and wear resistance. It is widely used to make components for machinery, automotive parts, gears, shafts, axles, and other applications. The “EN” prefix indicates that EN19 conforms to European standards, and the number “19” specifies a particular steel grade within the EN standards.

1. EN 19 Steel Supply Ability :

FMT can supply you both EN 19 steel plate and round bar.

EN19 Round Bar: diameter 8mm – 600mm

EN 19 Steel Plate: thickness 4mm – 50mm x width 200mm – 2500mm

EN19 Steels Square: 20mm – 90mm

2. EN 19 Specification , BS 970 Standard

Here you have a different equivalent to EN19 grade steel which belongs to BS 970 Standard

BS 970 - 1955BS 970-3-1991BS EN 10250DINASTM A29JIS G4105AS 1444AFNOR
EN19708M4042CR1.722538HM4140SCM440414042CD4
3. EN 19 Chemical Composition

The chemical composition of EN19 steel in BS 970 – 1955 is

StandardGradeCMnPSSiCrMo
BS 970 - 1955EN190.35-0.450.50-0.800.050.050.10-0.350.90-1.50.2-0.40

While the fourth edition in 1955 has been updated to sixth edition in 1991.  The new steel grade for EN19 is 708m40 or 709M40 steel and the chemical composition is as below:

StandardGradeCMnPSSiCrMo
BS 970 - 1991708M400.36-0.440.7-1.00.0350.0350.1-0.40.9-1.20.15-0.25
BS 970 - 1991709M400.36-0.440.7-1.00.0350.0350.1-0.40.9-1.20.25-0.35
4. EN 19 Steel Material Mechanical Properties

The mechanical properties of EN 19 alloy steel are as follows:

PropertiesMetricImperial
Tensile Strength655 MPa95000 psi
Yield Strength415 MPa60200 psi
Bulk Modulus (typical for steel) 140 GPa20300 ksi
Shear Modulus (typical for steel)80 GPa11600 ksi
Elastic Modulus190-210 GPa27557-30458 ksi
Poisson's ratio0.27-0.300.27-0.30
Elongation at break ( in 50 mm)25.70%25.70%
Hardness ,Brinell197197