Oetzbach Edelstahl GmbH

What Oetzbach Edelstahl GmbH does

Oetzbach Edelstahl GmbH is a fourth-generation, family-owned industrial service provider headquartered in Velbert, North Rhine-Westphalia, Germany, founded in 1927 by Albert Ewald Oetzbach as a tool steel trading house ("Velbert Werkzeugstahlhandel"). The company has progressively verticalized from steel distribution into contract heat treatment, establishing its own hardening department in 1963 and expanding its facility footprint through Hall B (1998) and Halls C and D (2005) at its current Bahnhofstraße 110 site.

The company's core technology stack centers on metallurgical heat treatment processes. Its vacuum hardening operation uses vacuum furnaces with high-pressure gas quenching up to 25 bar nitrogen, enabling oxidation-free, low-distortion hardening of cold-work tool steels (e.g., 1.2379, 1.2343, 1.2436, 1.2360). It offers both plasma nitriding (480–570°C, with selective masking capability and treatment of stainless steels) and, as newly added in 2025, gas nitriding using decomposed ammonia for larger components and series production. Supplementary processes include cryogenic SubZero treatment at -80°C (reducing retained austenite below 2% on 1.2379), low-pressure carburizing (LPC) at 960°C for case-hardening steels (e.g., 15NiCr13, 18CrNiMo7-6), controlled annealing, Black Ox plasma oxidation (923–958 HV1 surface hardness), and low-temperature nitriding (LTN, >1000 HV). The company also provides in-house material analysis via XRF (RFA) and optical emission spectroscopy (OES), full hardness testing (Digital HRC, UCI, Leeb, HV microhardness), CNC mechanical processing (sawing, milling, grinding), and digital process documentation with 3.1 inspection certificates under ISO 9001:2015.

Revenue is generated through three principal streams: (1) contract heat treatment toll work ("Lohnhärte"), billed on a quote basis per job specification; (2) tool steel, stainless steel, and special alloy sales via a direct online shop (oetzbach-stahl.shop) and offline channels; and (3) mechanical processing services for ready-to-install precision components. Go-to-market is sales-led and direct, with field sales, inside sales via phone/email, regional pickup-and-delivery collection tours, and an express 24–48 hour service for urgent orders. Target end-markets include tool and mould making, machine and fixture construction, energy and water technology, medical devices, aerospace (safety-critical), and additive manufacturing components — the latter representing a specialized niche extension of the conventional heat treatment business.

Name

Oetzbach Edelstahl GmbH

Legal name

Oetzbach Edelstahl GmbH

Website

https://oetzbach-stahl.de

Company type

Private

Founded year

1927

Operating status

Operating

Headcount range

1–10 employees

Short description

Oetzbach Edelstahl GmbH is a fourth-generation family-owned German specialist, founded 1927 in Velbert, providing contract heat treatment (vacuum hardening, plasma/gas nitriding, annealing, LPC, cryogenic treatment) and tool steel distribution for industrial customers in toolmaking, aerospace, medical, and additive manufacturing sectors.

Ownership category

akta.pro rank

Product category

Industrial Heat Treatment Services

NAICS

Metal Heat Treating (332811), Coating, Engraving, Heat Treating, and Allied Activities (3328)

SIC

Coating, Engraving & Allied Services (3470)

akta.pro primary industry

Steel Heat Treatment & Metallurgical Processing (Annealing, Quenching/Tempering, Normalizing) (IMAKABAK)

Keywords

• Vacuum hardening
• Tool steel supply
• Plasma nitriding
• Steel heat treatment
• Precision machining services

Headquarters

HQ city

Velbert

HQ country

Germany

HQ region

Europe

Offices1 record

Markets served

GTM type

B2B

Offering type

Services

Cost components

Personnel, Operations, Supply Chain, Technology or R&D, Infrastructure, Marketing or Sales

Revenue model

1. Werkzeugstahl Sales: Sale of tool steels, stainless steels, and special alloys. The company stocks and sells various tool steel grades including cold work steels, hot work steels, high-speed steels, and stainless steels in rounds, flats, and squares.
2. Lohnhärte (Contract Heat Treatment): Contract heat treatment services including vacuum hardening, nitriding, annealing, deep freezing, and LPC. Billed as toll work based on process specifications, material, dimensions, and quantity.
3. Mechanische Bearbeitung (Mechanical Processing): Mechanical processing services including CNC sawing, milling, and grinding of steel materials. Offered as part of integrated solutions from raw material to finished precision components.
4. Online Shop Sales: E-commerce sales of steel materials through their online shop (oetzbach-stahl.shop). Customers can purchase steel directly with various payment options.

Pricing tiers

Go-to-market motion1 record

Distribution channels3 records

Marketing channels5 records

Core offering

Oetzbach Edelstahl GmbH is a fourth-generation family-owned steel specialist that provides contract heat treatment services (vacuum hardening, plasma and gas nitriding, annealing, deep freezing, and low-pressure carburizing) for tool steels and precision components, complemented by direct sales of tool steel and stainless steel products and CNC mechanical processing (sawing, milling, grinding). Customers submit customer-owned components for toll processing or purchase steel material from the warehouse, with full process documentation, material analysis, and hardness testing provided as integrated services.

Product overview

Oetzbach Edelstahl GmbH is a fourth-generation family-owned steel specialist founded in 1927, offering an integrated portfolio of heat treatment services and tool steel products. The core offerings include Vakuumhärten (vacuum hardening) with modern high-pressure gas quenching furnaces, Nitrieren (nitriding) combining plasma and gas nitriding technologies with specialized processes like Black Ox and LTN, and Glühen (annealing) services. The company operates as a comprehensive solution provider where customers can purchase Werkzeugstahl (tool steel) and receive associated mechanical processing (sawing, milling, grinding), material analysis (RFA, OES), hardness testing (HRC, UCI, Leeb, HV), and full process documentation. Supplementary services include Tiefkühlen (deep freezing/cryogenic treatment), Vakuumaufkohlen LPC (low pressure carburizing), and specialized heat treatment for additive manufacturing components. The company holds ISO 9001 certification and serves industries including tool and mold making, mechanical engineering, energy, medical technology, and aerospace.

Differentiator

Problem solved

Functional benefit

Products and services

• Vakuumhärten (Vacuum Hardening) Contract heat treatment service using vacuum furnaces with high-pressure gas quenching (up to 25 bar nitrogen) for tool steels such as 1.2379, 1.2343, 1.2436, and 1.2360. Provides minimal distortion, oxidation-free surfaces, and precise temperature control for industrial customers requiring high hardness with tight dimensional tolerances.
• Nitrieren – Plasma- & Gasnitrieren (Nitriding – Plasma & Gas) Surface hardening service using ionized nitrogen plasma at 480-570°C and gas nitriding with decomposed ammonia for uniform, deep nitrogen diffusion. Enables precise layer property control, treatment of complex geometries, and successful nitriding of stainless steels. Includes Black Ox plasma oxidation and LTN (Low Temperature Nitriding) variants for industrial customers in tool, machine, and component manufacturing.
• Glühen (Annealing) Heat treatment service including stress relief annealing, soft annealing, and solution annealing. Equipment capacity of 1000 x 600 x 600 mm with maximum piece weight of 800 kg. Serves industrial customers that need improved machinability and elimination of internal stresses in tool steel components.
• Tiefkühlen / SubZero-Behandlung (Deep Freezing / SubZero Treatment) Cryogenic treatment service at -80°C using digital nitrogen cooling, reducing retained austenite content to below 2% (demonstrated for 1.2379 steels) to prevent dimensional changes and improve hardness. Targeted at industrial customers requiring dimensional stability in precision-hardened tool and component applications.
• Vakuumaufkohlen LPC (Low Pressure Carburizing) Vacuum carburizing service at 960°C with precision carbon diffusion for case-hardening steels like 15NiCr13 and 18CrNiMo7-6. Eliminates oxidation, produces clean surfaces, and minimizes distortion. Targets industrial customers needing oxide-free, case-hardened precision components for high-load applications.
• Werkzeugstahl (Tool Steel) Direct sale of high-performance tool steels including cold work steels, hot work steels, high-speed steels (HSS), and stainless steels in rounds, flats, and squares. Sold to industrial customers for tooling, mould-making, and component manufacturing, available through the company's online shop and direct sales.
• Mechanische Bearbeitung (Mechanical Processing)

Quantifiable outcome

• Restaustenitgehalt unter 2% bei 1.2379-Stählen durch Tiefkühlen
• +2 more outcomes

Segments6 records

Ideal customer profiles4 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature11 records

Scale indicators3 records

Recent moves12 records

Expansion highlights5 records

Broad incumbents

• Voestalpine AG: Austrian steel and technology group with specialty steel divisions serving tool, automotive, and aerospace end-markets. Comparable in tool steel portfolio but vastly larger, integrated across steelmaking, processing, and component manufacturing.
• Swiss Steel Group (formerly Schmolz + Bickenbach): European specialty steel producer and distributor of tool steel, stainless steel, and engineering steel serving automotive, energy, and industrial customers. Overlap on tool steel distribution side of Oetzbach's business.

Direct peers

• Bodycote: World's largest dedicated heat treatment services provider, offering vacuum hardening, nitriding, and other metallurgical processes to aerospace, automotive, and industrial customers globally. Directly comparable business model with overlapping processes but vastly larger geographic footprint.
• Ipsen International: Specializes in vacuum heat treatment furnaces and metallurgical services, serving aerospace, automotive, and tool/mold making customers. Direct process overlap with Oetzbach's vacuum hardening and nitriding capabilities, particularly for high-value tool and alloy components.
• ALD Vacuum Technologies: German-based provider of vacuum metallurgy equipment and heat treatment services, including vacuum hardening, brazing, and sintering for industrial customers. Strong process overlap and direct geographic overlap in Germany.
• RÜBIG GmbH: Austrian family-run heat treatment specialist offering nitriding, vacuum hardening, and steel distribution. Similar integrated steel-plus-service business model and comparable positioning in tool steel and precision component markets in the DACH region.
• SECO/WARWICK: Manufacturer of vacuum furnaces and provider of metallurgical heat treatment equipment and services for tool steel and aerospace applications. Comparable in process expertise (vacuum hardening, nitriding) and end-market focus on tool makers and precision parts manufacturers.

Emerging players

• Schunk Group: German industrial group with heat treatment and carbon technology divisions serving automotive and industrial customers. Adjacent in heat treatment capabilities but operates across a broader industrial materials portfolio.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat5 records

Key risks6 records

Key highlights7 records

Customer concentration

• LinkedInlinkedin.com/company/oetzbach-edelstahl-gmbh

Compliance1 record

Revenue estimate

Valuation estimate

Number of profiles

Profiles4 records

Funding overview

Funding rounds

Investors

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about Oetzbach Edelstahl GmbH