Welcome to Leading Supplier & Stockiest of 18CRNIMO7-6 Steel Round and Flat Bar Suppliers in Mumbai !

18CrNiMo7-6 STEEL ROUND BARS

18CrNiMo7-6 steel round bars (DIN 1.6587) are high-performance alloy case-hardening steel bars known for their excellent strength, toughness, and wear resistance. These round bars are specially designed for heavy-duty engineering applications where high fatigue strength and impact resistance are required. Due to the presence of chromium, nickel, and molybdenum, 18CrNiMo7-6 round bars offer superior hardenability and core toughness. They are widely used in the automotive, heavy machinery, aerospace, and power transmission industries for manufacturing gears, shafts, and other critical components.

18CrNiMo7-6 STEEL FLAT BARS

18CrNiMo7-6 steel flat bars are premium alloy steel products suitable for structural and precision engineering applications. These flat bars provide excellent machinability and are ideal for components that require high surface hardness along with a tough internal core. The material responds well to heat treatments such as carburizing, quenching, tempering, annealing, and normalizing. 18CrNiMo7-6 flat bars are extensively used in the production of machine parts, industrial tools, and load-bearing components that demand durability and long service life.

Nilesh Steel Company is a leading supplier of 18CrNiMo7-6 steel products. We supply high-quality 18CrNiMo7-6 round bars and flat bars in various sizes and finishes. All materials are thoroughly tested and delivered with a material test certificate to ensure complete quality assurance and customer satisfaction.

18CrNiMo7-6 Chemical Composition

Element	Composition
C%	0.15 – 0.21
Mn%	0.50 – 0.90
P Max.%	0.025
S Max.%	0.035
Si%	≤ 0.40
Ni%	1.40 – 1.70
Cr%	1.50 – 1.80
Mo%	0.25 – 0.35

18CrNiMo7-6 Mechanical Properties

Property	Value
Tensile Strength	1050 – 1350 N/mm²
Yield Strength	Varies with heat treatment
Hardness	Up to 58–62 HRC (after carburizing & hardening)
Elongation	Good ductility