EN19 is a specific grade of steel, also known as 709M40 or 4140, that is known for its high strength, toughness, and wear resistance. It's a low-alloy steel containing chromium and molybdenum, making it suitable for various engineering applications like gears, shafts, and automotive parts.

Specification of En-19

Standards	Designation
AISI	4140

Chemical Composition of En-19

GRADE	Chemical Composition %
	C	Si	Mn	S	P	Cr	Mo
EN-19	0.35–0.45	0.10–0.35	0.50–0.80	max 0.040	max 0.040	0.90–1.40	0.20–0.40

Applications of En-19

• Automotive Gears and Parts
• Shafts
• Towing Pins
• Load Bearing Tie Rods
• Oil & Gas Industry Applications