Industrial machinery, plant equipment and tool rooms operate at the technical end of our customer base. Steel choice matters disproportionately here — a die that lasts three hundred thousand strokes versus three thousand is the difference between a profitable run and a write-off. We carry the cold-work, hot-work and shock-resisting tool steels, the bearing grades and the high-tensile alloys that machine builders specify.
Machinery customers — machine builders, tool rooms, die-makers, plant equipment manufacturers — are the most technical buyers we deal with. The conversation isn't usually about price per kilo; it's about which grade will give the die three times the run-life, or whether H11 or H13 is the better fit for an aluminium die-casting application, or what hardness P20 actually supplies at when you machine the mould.
We hold the working range of tool and die steel that makes those conversations possible. Cold-work grades (D2, D3, OHNS, S7) for blanking, forming, cutting and impact tooling. Hot-work grades (H11, H13) for die-casting, hot extrusion and forging. P20 pre-hardened for plastic moulds. DB6 for forging die blocks. Plus EN31 bearing steel for machine bearings and rollers, and the through-hardening alloy range for plant shafts.
Cut to die-block sizes on five automatic CNC saws up to 600 mm. UT-tested where applicable. MTC and UT documentation with every consignment. The toolmaker starts on the work that pays, not on the saw.
The finished parts that start out as Saroj round, square, hex or forged bar — with the grades typically specified for each.
Cold-work tool steel for the dies that produce sheet-metal parts in volume — wear resistance and edge retention are everything.
Hot-work tool steel for aluminium die-casting dies, hot-extrusion tooling and forging dies. Heat checking and thermal fatigue resistance matter most.
Pre-hardened mould steel for injection moulds — supplied at 28–34 HRC, ready to machine into the mould cavity directly.
Heavy-duty Ni-Cr-Mo-V die-block steel for drop-forging and press-forging dies. High toughness through large sections.
Shock-resisting and cold-work tool steel for punches, chisels, shear blades and other impact-loaded tooling.
Bearing steel for machine spindles, rollers, cam followers and high-precision wear parts.
High-tensile through-hardening alloy bar for machine spindles and plant equipment shafts. Often supplied in long sections.
OHNS supplied to tool rooms for general cutting tools, taps, reamers and small precision tooling.
Why each grade earns its place on a typical machinery bill of materials. Click any for full composition, properties and equivalents.
High-carbon high-chromium cold-work die steel — the wear-resistance benchmark for blanking and forming dies. Air-hardening, low distortion.
Higher-carbon oil-hardening cold-work steel. The economical workhorse for blanking dies in Indian tool rooms.
Chromium hot-work tool steel — tougher than H13, used for die-casting and forging dies that take heavy impact at temperature.
The industry-standard hot-work tool steel — global default for aluminium die-casting dies and hot-extrusion tooling.
Pre-hardened mould steel at 28–34 HRC. Machine directly into the mould — no further heat treatment required.
Air-hardening shock-resisting tool steel — the toughest of the AISI S group. For punches and chisels that take repeated impact.
Nickel-chromium-molybdenum-vanadium die-block steel — for forging dies, hammer dies and large hot-work tooling. Pre-hardened, ready to sink.
Oil-hardening non-shrinking tool steel — minimal distortion through hardening. The forgiving choice for accurately sized tools, dies and gauges.
High-carbon high-chromium bearing steel for machine bearings, rollers and precision wear parts.
Cold-work, hot-work, shock-resisting, plastic mould, die-block — eight grades in stock, the most-used range for Indian tool rooms.
Five automatic CNC saws up to 600 mm. Block-sized cuts to your drawing — the toolmaker starts on the work that pays.
Not sure if H11 or H13 fits your die-casting application? Or whether D2 or D3 makes sense for a particular blanking volume? Ask before you spec.
On large die blocks and bearing-steel bars, ultrasonic examination catches the internal defects that would become tool failures in service.
P20 plates, H13 forged blocks, DB6 die stock — held in the sizes Indian tool rooms actually consume, not just round bar.
MTC + UT pass certificates with every consignment. For high-criticality tooling or export tool-room work, 3.2 third-party witness available on request.
Both are chromium hot-work tool steels. H13 has slightly higher vanadium content, which gives it marginally higher hot hardness and better wear resistance — making it the default for aluminium die-casting dies and hot-extrusion tooling. H11 is slightly tougher, which makes it the better choice for dies that take heavier shock or impact loading. For most general hot-work applications, H13 is the safer specification.
D2 is air-hardening, distorts less in heat treatment, and contains molybdenum and vanadium for better toughness. D3 is oil-hardening, higher carbon, more wear-resistant on paper but less tough — and lower cost. For high-volume blanking runs where dimensional stability matters, D2 is usually worth the premium. For lower-volume work or wear-dominated applications, D3 remains the Indian tool-room workhorse.
Yes. P20 is supplied at 28–34 HRC (typically around 300 HB) — machine directly into the mould cavity, no further heat treatment required. This is one of P20's biggest practical advantages: no distortion risk after the mould is cut.
Yes. We cut to die-block sizes on five automatic CNC saws up to 600 mm cutting capacity. Tell us the block dimensions on your inquiry — we'll cut, certify and dispatch as a single consignment.
Yes. Share the application — what the tool is, how it's loaded, how many cycles you need, what's failing on your current grade — and we'll come back with options and trade-offs. Four decades of supplying Indian tool rooms gives us a reasonable view on what actually works in practice.
Share your application, grade, size and run-life expectation. Technical advice included.
