SUPPLY SPECIFICATION
What We Supply
Sizes, grades, mills and tolerances for our tool & die steel range.
| Sizes | Grade families | Make / mill | Tolerance | Testing |
|---|---|---|---|---|
|
|
We source from CITIC Pacific Special Steel, ABS and specialist steel mills, and through our forging partners for large sections. | EN 10060 · EN 10029 · Ground by order | Mill certificate · Hardness · Dimensions · UT by grade / order |
Processing on Tool and Die Steel
OneKaizen cuts tool steel to your size and heat treats it in-house. Ground finish is available on selected grades and sizes. We inspect hardness and dimensions before it ships.
| Processing route | Typical scope | Output / control |
|---|---|---|
| Cut to size | Round · flat · plate | Length · width · thickness |
| Precision grinding | Selected grades and forms | Size · flatness · surface |
| Heat treatment | Annealed · hardened and tempered | Hardness |
| Inspection | Grade standard | Hardness · certificate · UT as specified |
How We Supply Tool and Die Steel
- 1
Match the grade to the tool
We select the grade from your process, working temperature, wear and impact conditions.
Sourcing team - 2
Source the stock
We buy rolled or forged bar and flat from the mill or forge that makes the grade.
Sourcing team - 3
Cut to size
Stock is cut to your length, width and thickness.
In-house - 4
Heat treat or grind
Annealing, hardening and tempering, or grinding, where your order calls for it.
In-house / partner - 5
Inspect
Hardness, dimensions, surface and certificate check. UT as specified.
Quality team - 6
Pack and deliver
Oiled, wrapped and tagged with grade and heat number, then shipped to your plant.
Supply chain team
Grades We Supply in Tool & Die Steel
OneKaizen's main tool and die grades, with their nearest equivalents. Send us any other grade you use.
| Family | Grades |
|---|---|
| Tool Steel | D2 / 1.2379OHNS / O1 / 1.2510H13 / 1.2344H11 / 1.2343D3 / 1.2080A2 / 1.2363O2 / 90MnCrV8 / 1.28421.2714 (56NiCrMoV7) + 40 more |
Quality, Packing and Delivery
Quality
Mill certificates with chemistry and hardness, heat-number traceability, and dimensional and surface inspection on every lot. UT as specified.
Packing
Oiled or VCI-wrapped, steel-strapped or crated, and tagged with grade, size and heat number.
Delivery
To your plant anywhere in India by road. Export packing and documents for buyers abroad.
Applications
Tool & Die Steel Questions
How do I select a tool steel grade?
Start with the tool's process, working temperature, wear, impact load and target hardness. D2 suits cold work dies, H13 suits hot work and die casting, P20 suits plastic moulds.
What sizes of tool steel do you supply?
Round bars from Ø 20 to 500 mm and flats from 10 to 500 mm thick, cut to your size. Tell us the grade and finished size you need.
Is D2 the same as 1.2379 and SKD11?
They are close equivalents, not identical. D2 (1.2379) and SKD11 are the 12% chromium cold work grades with small differences in composition limits.
Which steel is best for plastic injection moulds, P20 or H13?
P20 is the usual choice for general moulds because it is supplied pre-hardened and machines easily. H13 gives better wear and heat resistance for abrasive or high-volume moulds.
What is the difference between H11 and H13?
H13 has more vanadium and gives better wear resistance and hot hardness. H11 has slightly better toughness and is used where thermal shock is the main concern.
Do you supply high speed steel M2, M35 and M42?
Yes. OneKaizen supplies M2, M35 (cobalt) and M42 (cobalt) HSS as bar. Send us your size and quantity.
Do tool steels come with test certificates?
Yes. Every lot ships with a mill certificate showing chemistry and hardness, traceable to the heat number. UT is available by grade and order.
Do you supply tool steel across India and for export?
Yes. OneKaizen delivers to tool rooms and plants across India and exports to buyers abroad with export packing and documents.
Sizes, grades and tolerances above are our standard range. Other sizes and grades are available on request. Final values are confirmed against the order standard and mill certificate.
