DILLIDUR
Wear-resistant steel
German engineering
Premium steel from the Dillinger plant - a world-class heavy plate manufacturer since 1685. Full metallurgical cycle, hardness 325–600 HB, thicknesses up to 150 mm. Direct deliveries to Ukraine from HARD STEEL INDUSTRY.

Certificate 3.1
for each party
DILLINGER STEEL IS CHOSEN BY WORLD-CLASS OEMS
8 benefits you will experience on the details resource
The main value of DILLIDUR lies not in a single hardness number, but in the depth of production control - from smelting to final heat treatment.
Full metallurgical cycle
Dillinger controls 100% of the process — from the blast furnace to the marking of the finished sheet. One manufacturer, one site, one quality system.
Ultra-pure steel
S ≈ 0.0006–0.0010 | P ≈ 0.009–0.013. Vacuum degassing and minimal impurities — less brittleness, less risk of cracks during welding.
Stable hardness
Dillidur 500 is actually 495–514 HB. Minimal spread, no “soft zones”, predicted part life batch by batch.
Large thicknesses up to 150 mm
The plant specializes in heavy plate. Something that other manufacturers can't handle. Through-hardening means the entire thickness is used for wear.
Excellent machinability
Low carbon equivalent (CEV) provides better weldability, cutting and machining without losing the properties of the base metal.
Individual approach
Special cutting from a minimum batch. For large volumes - assigned chemical composition or hardness indicators for your task.
Factory warranty 24 months
Any material found to be non-compliant with the quality certificate data is considered for replacement. Support with consultations from Dillinger engineers.
World-class certification
ISO 9001, ISO 14001, ISO 45001, ISO 50001. Certificate 3.1 and heat number for each melt — full traceability of each sheet.

1.8M
TONNES OF THICK SHEETS PER YEAR
The complete metallurgical cycle "in one hand"
Most manufacturers of wear-resistant steels purchase semi-finished products from third-party suppliers. Dillinger is one of the few in the world that controls the entire chain from raw materials to finished sheet.
Blast furnaces
Own production of cast iron from controlled raw materials
Steelmaking
Converter melting with precise chemistry control
Vacuum degassing
Impurity removal - minimum S and P
Continuous casting
Slabs with a homogeneous structure without defects
Rolling
Heavy-duty sheet metal with geometry control
Hardening + tempering
Through hardening with precise control
Full range of DILLIDUR brands
From 325 to 600 HB. Selection of the grade for your application - with the advice of engineers
Dillinger and HARD STEEL INDUSTRY.
DILLIDUR 400
425–475 HB
Sufficient hardness with maximum machinability. Low carbon - easy welding.
🔹 BODY, SIDE, CONVEYORS
Open PDFDILLIDUR 450
425–475 HB
A universal solution — a balance of wear resistance and manufacturability.
🔹 DUMP TRUCKS, CRUSHERS, BUNKER STOVE
Open PDFDILLIDUR 500
475–525 HB
PERFECT machinability/hardness ratio. The most popular brand.
🔹 BUCKETS, DUMPS, LINERS
Open PDFDILLIDUR 550
525–575 HB
Increased wear resistance for severe abrasive wear conditions.
🔹 MINING TECHNOLOGY, QUARRIES
Open PDFDILLIDUR 600
570–630 HB
Maximum hardness of the ruler. For the toughest abrasive loads.
🔹 CRUSHING EQUIPMENT
Open PDFDILLIDUR IMPACT / 325 L
up to 325 HB
Special grades for high temperatures and shock loads.
🔹 HIGH TEMPERATURE ZONES
Open PDFFigures confirmed by certificates
Analysis of real quality certificates of 3.1 batches of DILLIDUR shows: actual indicators consistently meet or exceed the declared ones.
Mechanical properties
Chemical composition
The secret of DILLIDUR durability
Precise chemical balance + vacuum degassing + through hardening. Low S and P values reduce brittleness, provide predictable behavior during welding and machining. Batch after batch — the same mechanical properties and resource of the part without "surprises".
Where wear and tear is the main enemy
DILLIDUR works in the harshest operating conditions. The same steel is used by Liebherr, Caterpillar, Komatsu and Volvo in their machinery.



HARD STEEL INDUSTRY
× DILLINGER
The letter from Dillinger/Perficon officially confirms: HARD STEEL INDUSTRY LLC is a recognized trusted and preferential partner in the promotion and distribution of Dillidur and Dillimax products in Ukraine.
SIGNATORIES OF THE PARTNERSHIP LETTER
Sales Director, Energy Transmission and Processing
Senior Sales Manager, Machinery & Construction Equipment
Direct deliveries to Ukraine
We are ready to calculate DILLIDUR for your order?
Leave a request — a HARD STEEL INDUSTRY engineer will select the optimal grade, thickness and cutting for your task. Calculation within 1 business day.
+38 067 180 07 70
Everything you need to know before ordering
DILLIDUR is produced by Dillinger - one of the few plants in the world with a full metallurgical cycle. Own smelting, vacuum degassing, through-hardening. The same steel is chosen by OEM manufacturers Liebherr, Caterpillar, Komatsu, Volvo. This is not an "analogue" - this is the premium segment of AR steel.
Thicknesses from 4 to 150 mm. The plant specializes in heavy plate, where Dillinger is a world leader. Standard formats, as well as special cutting to your drawings, starting from a minimum batch.
Yes. Low carbon equivalent (CEV) provides better machinability. The factory provides detailed cutting, welding, bending and machining recommendations for each grade. Dillinger engineers are available to provide advice for your application.
The plant guarantees that any non-compliance of the material with the data of the quality certificate 3.1, detected within 24 months, will be considered with the replacement of the material. For each batch - heat number and full traceability of the melt.
As a strategic partner of Dillinger, HARD STEEL INDUSTRY provides direct deliveries. The terms depend on stock availability and order parameters - we will provide exact information during the calculation.
This is the result of Dillinger's production efficiency (full cycle "in one hand" = no cheating by suppliers of semi-finished products) and HARD STEEL INDUSTRY's direct partnership with the plant without unnecessary intermediaries.
Latest news – DILLINGER
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