
Mid-sized steel trading company with cutting service and tradesman centre for steel, stainless steel and aluminium in Dillingen.

Joseph Heitzmann GmbH
Dillingen a.d. Donau (Mohrenstraße 15)New on Amplifa
About Joseph Heitzmann GmbH
Founded in 1947, Joseph Heitzmann GmbH is a mid-sized steel trading company based in Dillingen an der Donau. The family-owned business supplies steel, stainless steel, aluminium, brass and copper directly from stock – from bright steel to flat products, construction steel and tubes through to sheets and corrugated and trapezoidal profiles. A cutting service provides custom cuts to customer specifications; plasma cutting and slit strips in the stainless steel segment are also available on request. The trading business is complemented by a tradesman centre with around 13,000 items, including tools, machines, building components, grating, fencing and roofing materials. Customers include industry, trades and private customers; an own vehicle fleet delivers within a radius of about 100 km within 24 hours. The site on Mohrenstraße offers six halls with around 20,000 m² of warehouse and open-air storage space as well as 40 employees.
- Site
- Dillingen a.d. Donau
- Processes
- Cutting service (steel cutting to size), Cuts / plasma cuts / slit strips (stainless steel, on request), Steel trading / stock programme (bright steel, flat products, construction steel, tubes), Delivery / delivery service (24-hour delivery service, 100 km radius), Corrugated and trapezoidal profiles (roofing, distribution by Wurzer), Cutting service, 24-hour delivery service (100 km delivery radius), Delivery via own vehicle fleet
- Materials
- S235JR, S235JRC, S235JRH, S355J2, C45, Free-cutting steel, DD11, DC01
- Certificates
- Hörmann specialist dealer (certified)
- Founded
- 1947
- Employees
- 40
- Industries
- Steel trading, Trades, Industry, Construction, Private customers, Private customers / Construction
- 01
Stockholding of steel, stainless steel, aluminium, brass
- 02
Custom cutting to size
- 03
Consultation
- 04
Delivery via own vehicle fleet or collection
Materials and stock programme
Structural steel S235JR / S355J2
Structural steels in various profiles, sheets and tubes, the core of the steel trading business.
C45 / free-cutting steel 11SMn30
Bright steels for machining in mechanical and plant engineering.
Cold-rolled sheets DC01–DC04, DX51D+Z
Sheet metal, also hot-dip galvanized, for sheet processors and metal construction.
Stainless steel 1.4301 / 1.4307 / 1.4571
Corrosion-resistant stainless steel products ex stock, further alloys on request.
Aluminium AlMg3, Al99.5, AlMgSi 0.5
Lightweight, corrosion-resistant aluminium products as sheets, profiles and tubes.
Brass
Brass goods for applications requiring good conductivity and wear resistance.
Copper
Copper products for electrical and craft applications.
Locations

Dillingen a.d. Donau
DEHeadquarters: steel trading, tradesman centre, warehouse and administration
- Lot size
- Single items to series call-offs, stock and call-off orders
- Materials
- Steel, stainless steel, aluminium, brass, copper
- Cutting service
- Magnetic crane technology
- Own vehicle fleet
- Tradesman centre with 1,500 m² of sales space
Stock and trading programme


Inside the production





Industries
Processes & technical limits
| Processes | Tolerance | Max. part | Weight | Lot size | Materials |
|---|---|---|---|---|---|
| Cutting service (steel cutting to size)Machining | – | – | – | – | Steel, Stainless steel, Aluminium, Brass |
| Cuts / plasma cuts / slit strips (stainless steel, on request)Machining | – | – | – | – | 1.4301, 1.4571 |
| Steel trading / stock programme (bright steel, flat products, construction steel, tubes)Engineering | – | 6000 mm (standard lengths 3/6 m) | – | – | S235JR, S355J2, C45, 11SMn30, DC01, DX51D+Z, 1.4301, 1.4571, EN AW-1050A, EN AW-5754, EN AW-6060, Brass |
| Delivery / delivery service (24-hour delivery service, 100 km radius)Engineering | – | – | – | – | Steel, Stainless steel, Aluminium, Brass |
| Corrugated and trapezoidal profiles (roofing, distribution by Wurzer)Forming | – | – | – | – | Galvanized steel, Aluzinc |
Additional services
Quality and Partnerships
As a certified Hörmann specialist dealer, Heitzmann offers tested brand products; consultation, repair and spare parts service as well as flexible stock and call-off orders complement the quality assurance.
| Evidence | Dillingen a.d. Donau |
|---|---|
| Hörmann specialist dealer (certified) |
Company History
- 1947
Founded by Joseph Heitzmann in the Jakobstal district of Dillingen; trading in iron goods and structural steel.
- 1953
First expansion: new cranes, an additional hall and an enlarged sales area.
- 1965
Construction of a new steel hall in the Jakobstal.
- 1972
Further steel hall in the Jakobstal; around 20 employees.
- 1977
Renaming to Joseph Heitzmann GmbH; Hans Mrowietz becomes managing director.
- 1987
Development of the new company premises in the Mohrenstraße industrial area.
- 1989
Construction of the first 1,500 m² steel hall on Mohrenstraße.
- 1993
A further 1,500 m² steel hall plus office building on Mohrenstraße.
- 1998
Volker Mrowietz becomes managing director (until 2021).
- 2001-2002
New construction of the tradesman centre, administration offices and two storage halls for aluminium and stainless steel.
- 2012
New construction of a 2,000 m² steel hall including magnetic crane technology.
- 2021
Robert Ahle and Volker Heuberger take over the management.
- 2022
Installation of a PV system with approx. 120 kWp capacity.
- 2023
Switch from gas to district heating (Dillingen Nordschwaben network).
- 2024
New hall for sheets; six halls and 40 employees.