At Ludhiana Steel Rolling Mills, we manufacture Mn-Mo Steel grades for forging, machining and mechanically loaded engineering applications.
Manganese-molybdenum steels combine the hardenability contribution of manganese with the strengthening and heat-treatment response associated with molybdenum. This makes the category useful where plain carbon steel may not provide the required combination of strength, toughness and section-hardening capability.
Our current Mn-Mo Steel range includes EN16 and 35Mn6Mo3.
Enquire NowEN16 and 35Mn6Mo3 are closely related designations within the manganese-molybdenum engineering-steel family. Published cross-reference data commonly associates EN16 with 35Mn6Mo3 / 605M36-type material, but the exact standard and chemistry should always be checked before treating different designations as interchangeable.
For ordering, we recommend using the exact designation shown on the customer drawing or material specification.
Available size range: 16mm to 230mm.
Round bars are suitable for forging, machining and further heat treatment where a circular starting section is preferred. Typical requirements may include shafts, pins, axles and other mechanically loaded engineering parts.
Available size range: 28mm to 140mm.
RCS bars can be considered where the forging route benefits from a round-cornered square starting section.
Available size range: 18mm to 80mm.
Peeled bars provide a more prepared starting surface for precision machining and downstream component manufacture.
Mn-Mo steels are alloy engineering steels in which manganese and molybdenum work together to improve strength and hardenability.
Manganese can help improve:
Molybdenum can contribute to:
This combination makes Mn-Mo steel particularly relevant where a component needs more through-section strength than a simpler carbon grade may provide.
EN16 is an established manganese-molybdenum engineering steel used for mechanically loaded components where a practical balance of strength and toughness is required.
Typical engineering requirements may include:
EN16 is generally considered a lower-alloy engineering steel than grades such as EN19 or EN24, so the correct choice should be based on the actual section size, loading and mechanical-property requirement rather than simply selecting the most highly alloyed option.
35Mn6Mo3 is a manganese-molybdenum engineering grade associated with EN16-type specifications. A typical composition is in the region of:
These values are useful for understanding the alloy system, but the governing customer standard should always control the final chemistry.
The comparatively high manganese content, together with molybdenum, gives the grade its characteristic heat-treatment response and engineering strength.
Shafts and axles can experience a combination of:
For these components, the steel needs more than basic tensile strength. It also needs sufficient toughness and hardenability for the relevant section size.
Mn-Mo steels can be a useful choice where these requirements fall beyond the practical performance range of simpler carbon steels.
Mn-Mo steels can be supplied as starting material for forged engineering components.
For a forging requirement, we recommend specifying: Grade + Standard + Product Form + Starting Size + Quantity + Supply Condition + Final Component.
Depending on the forging design, the preferred starting form may be:
The component geometry and forging sequence should determine the starting section.
EN16 / 35Mn6Mo3-type steels may undergo substantial machining before final heat treatment. Typical operations include:
The supplied hardness and condition can significantly influence machining performance.
Where improved starting-surface condition is required, peeled-bar stock may provide a more suitable input for precision machining.
Mn-Mo steels are commonly selected because of their response to controlled heat treatment. Depending on the component and standard, the manufacturing route may involve:
Our in-house heat-treatment infrastructure supports annealing, normalising and spheroidising.
Any subsequent hardening-and-tempering requirement should be defined according to the component specification and required mechanical properties. We do not recommend assigning one generic heat-treatment cycle to every EN16 or 35Mn6Mo3 component because response varies with section size and desired performance.
Mn-Mo and Cr-Mo steels are both alloy engineering families, but they use different principal alloy systems.
Grades such as EN16 / 35Mn6Mo3 rely primarily on manganese and molybdenum to provide strength and hardenability.
Grades such as EN19 / SAE4140 / 42CrMo4 use chromium and molybdenum and are generally associated with a different hardenability and mechanical-performance range.
The correct family should therefore be selected from the actual component requirements rather than assuming one is simply a substitute for the other.
Our Mn-Mo Steel requirements are supported by an integrated manufacturing route: Steel Melting → Ladle Refining → Vacuum Degassing → Continuous Casting → Rolling → Heat Treatment / Finishing → Inspection & Testing.
This allows us to manage the steel through multiple stages before it reaches your forging or machining operation.
For alloy engineering steels, this integrated route helps keep chemistry, steelmaking and downstream processing aligned within one manufacturing system.
Mn-Mo steels may be used in components where mechanical performance and internal quality are important. Our testing infrastructure includes facilities for:
The actual inspection requirements should follow the applicable material standard and customer specification.
Mn-Mo engineering steels can be relevant where shafts or axles require greater hardenability and strength than basic carbon grades.
Round and RCS stock can be used as starting material for forged mechanical parts.
Pins, studs and other loaded machine components may use EN16 / 35Mn6Mo3-type steel where the specification calls for this alloy family.
These grades can be considered for mechanically stressed parts where the component design requires controlled strength and toughness. The exact application should always follow the drawing and grade specification.
Our Mn-Mo category includes EN16 and 35Mn6Mo3.
Subject to grade and specification feasibility, requirements can be discussed in:
Our production route covers steelmaking, refining, casting, rolling, heat treatment, finishing and testing.
You can approach us with the exact grade—or with the component, drawing and required material properties.
Our Mn-Mo Steel range includes EN16 and 35Mn6Mo3.
Yes. Published grade cross-reference data commonly associates EN16 with 35Mn6Mo3-type material, but the exact governing standard should always be checked before substitution.
Our round-bar range is 16mm to 230mm.
Our RCS range is 28mm to 140mm, subject to grade and specification feasibility.
Our peeled-bar range is 18mm to 80mm.
It is used for mechanically loaded engineering parts such as shafts, axles, pins and forged components where strength, toughness and hardenability are important.
No. EN16 belongs to the manganese-molybdenum family, while EN19 is a chromium-molybdenum engineering steel. Their alloy systems and performance characteristics differ.
Yes. Send the original grade, component drawing, size and mechanical requirement so the material requirement can be assessed in context.
Send us your: Grade → Standard → Product Form → Size → Quantity → Supply Condition → Mechanical Requirement → Application.
If the component is a shaft, axle, forging or another critically loaded part, include the material specification or drawing where available.
Leave your details and requirement. Our team will get back to you shortly.