Centrifugal casting, static casting and investment casting in high-alloy special steels and nickel alloys for the petrochemical industry, DRI and energy technology
Schmidt + Clemens GmbH + Co. KG
Lindlar-Kaiserau, Germany · Murieta (Navarra), Spain · Tršice (Olomouc), Czech Republic · Seremban, Malaysia · Sepang, Malaysia · Houston, TX, USANew on Amplifa
About Schmidt + Clemens
Schmidt + Clemens is an owner-managed family business founded in 1879 with its headquarters in Lindlar-Kaiserau, and for over 145 years has been one of the leading specialist foundries for centrifugal casting, static casting (sand and shell mould casting) and investment casting. The company manufactures precision-cast and forged components made of high-alloy special steels, nickel-based alloys and its own proprietary Centralloy® materials that withstand the highest thermal, corrosive and mechanical stresses. The value chain covers the entire process from alloy development and materials consulting through casting and machining (sawing, milling, turning, drilling) to manual and automated welding, heat treatment and assembly. Core markets are the petrochemical industry (steam crackers, steam reformers), iron direct reduction (DRI), energy and furnace technology, and general mechanical, plant and marine engineering. With production sites in Germany, Spain, the Czech Republic and Malaysia, around 1,081 employees and revenue of approx. €366 million (2025), S+C delivers worldwide to more than 30 countries.
- Site
- Lindlar
- Processes
- Centrifugal casting (horizontal & vertical), Static casting, Investment casting, Sand casting (mould casting), Shell mould casting, Forged parts / die forging, Rolled products, Precision sawing
- Materials
- Stainless steel, High-alloy special steels, Centralloy® (S+C proprietary brand), Centralloy® 60 HT D, Nickel-based alloys, Duplex steels, Super-duplex steels, Austenitic steels
- Certificates
- ISO 9001:2015 / ISO 14001:2015 / ISO 45001:2023 / ISO 50001:2018, QM system for material manufacturers Directive 2014/68/EU (EN 764-5, AD 2000-W0), Manufacturer and welding shop according to AD 2000-Merkblatt HP0, Welding quality requirements ISO 3834-2, Certificate of Authorization (CSA B51 / ASME B31.3, Ontario TSSA), Laboratory certification DIN EN ISO/IEC 17025, ISO 9001, ISO 14001, ISO 45001, ISO 50001, AD 2000-Merkblatt HP0 (Manufacturer/Welding Shop), ISO 3834-2, Directive 2014/68/EU (EN 764-5, AD 2000-W0), DIN EN ISO/IEC 17025 (Laboratory), TSSA QA-11298 (CSA B51 / ASME B31.3)
- Founded
- 1879
- Employees
- approx. 1,081 (643
- Industries
- Petrochemicals (steam crackers, steam reformers), Iron direct reduction (DRI), Energy technology (conventional, nuclear, hydropower, wind), Industrial furnace construction, Pumps & valves, Mechanical and plant engineering / shipbuilding
- 01
Alloy development / Centralloy® material development
- 02
Centrifugal casting (horizontal/vertical), static casting, investment casting
- 03
Machining (sawing, milling, turning, drilling, bending)
- 04
Welding (manual/automated)
- 05
Heat treatment
- 06
Non-destructive and metallurgical testing
- 07
Logistics and on-site services (assembly, maintenance)
Production Sites
Lindlar-Kaiserau, Germany
DEHeadquarters and production site: horizontal and vertical centrifugal casting, static casting, machining, welding,
- Materials
- Stainless steel, high-alloy special steels, nickel-based alloys, Centralloy®
- Scanning electron microscope (UHV field emission, EDX/WDX)
- Scanning electron microscope (normal/low vacuum, EDX)
- Universal testing machine (tensile test)
- Condition Monitoring Tool (CMT)
Murieta (Navarra), Spain
ESProduction site (CENTRACERO, founded 1974): horizontal and vertical centrifugal casting, welding, machining,
- Materials
- Stainless steel, high-alloy special steels
Tršice (Olomouc), Czech Republic
CZProduction site (S+C ALFANAMETAL, founded 1997): static casting and shell mould casting, machining, quality assurance
- Materials
- Stainless steel
Seremban (Negeri Sembilan), Malaysia
MYProduction site (Schmidt + Clemens Asia, founded 2001, new plant 2015): horizontal centrifugal casting, welding,
- Materials
- Stainless steel, stainless steel alloys
Sepang, Malaysia
MYEngineering Services (Schmidt & Clemens Engineering Services Sdn. Bhd., founded 2016): technical consulting and
Houston, TX, USA
USSales office for North America (Schmidt & Clemens Holding, Inc.)
Components
Inside the production
Industries
Processes & technical limits
| Processes | Tolerance | Max. part | Weight | Lot size | Materials |
|---|---|---|---|---|---|
| Centrifugal casting (horizontal & vertical)Casting | – | – | – | – | Stainless steel, high-alloy special steels, nickel-based alloys, duplex steels, Centralloy® |
| Static castingCasting | – | – | – | – | Stainless steel, austenitic steels, duplex steels, high-alloy special steels |
| Investment castingCasting | – | – | – | – | Stainless steel, high-alloy special steels, nickel-based alloys |
| Sand casting (mould casting)Casting | – | – | – | – | Stainless steel |
| Shell mould castingCasting | – | – | – | – | – |
| Forged parts / die forgingForming | – | – | – | – | Stainless steel, tempered steels |
| Rolled productsForming | – | – | – | – | Stainless steel |
| Precision sawingMachining | – | – | – | – | Stainless steel |
| MillingMachining | – | – | – | – | Stainless steel, special steels |
| TurningMachining | – | – | – | – | Stainless steel, special steels |
| DrillingMachining | – | – | – | – | Stainless steel |
| BendingForming | – | – | – | – | Stainless steel |
| Tube bendingForming | – | – | – | – | Stainless steel alloys |
| Manual weldingJoining | – | – | – | – | high-alloy and heat-resistant steels, new and aged materials |
| Automated weldingJoining | – | – | – | – | high-alloy steels |
| Heat treatmentHeat treatment | – | – | – | – | Stainless steel, special alloys |
| Non-destructive testing (NDT): dye penetrant testing, magnetic particle testing, radiographicTesting | – | – | – | – | Metals |
| Mechanical testing: tensile test (high/low temperature), compression test, bend test,Testing | – | – | – | – | Steel, stainless steel |
| Metallographic investigations (micro-/macrostructure, grain size, inclusion content)Testing | – | – | – | – | Steel |
| Corrosion investigations (intergranular corrosion, CPT/CCT)Testing | – | – | – | – | Stainless steel |
| Scanning electron microscopy (SEM with EDX/WDX)Testing | – | – | – | – | – |
| Creep testingTesting | – | – | – | – | high-alloy steels |
| Engineering & project management (advanced engineering services, process optimization, furnaceEngineering | – | – | – | – | – |
| On-site services: assembly, maintenance, component replacement, mechanical work,Assembly | – | – | – | – | – |
6 Anlagen & Maschinen
| Machine | Manufacturer / model | Quantity | Working area | Year built | Site |
|---|---|---|---|---|---|
| Scanning electron microscope (UHV field emission, with EDX and WDX) | – | 1 | – | – | Lindlar, Germany |
| Scanning electron microscope (normal/low vacuum, with EDX) | – | 1 | – | – | Lindlar, Germany |
| Universal testing machine (tensile test) | – | – | – | – | – |
| Condition Monitoring Tool (CMT, crawler with 4 sensors) | Schmidt + Clemens CMT | 1 | – | – | Lindlar, Germany |
| OD Measurement Device (measurement accuracy > ±1 µm, repeatability ±0.03 µm) | Schmidt + Clemens | – | – | – | – |
| DRI Reformer Testrig | Schmidt + Clemens | 1 | – | – | – |
Additional services
Reference customers
Quality and Certifications
All casting sites are certified to ISO 9001:2015; Germany and Spain additionally to ISO 14001, ISO 45001 and ISO 50001. The laboratory in Lindlar, certified to DIN EN ISO/IEC 17025, performs non-destructive testing (including radiography up to 200 mm wall thickness), mechanical tests (tensile, impact and creep rupture tests), metallographic and corrosion investigations as well as scanning electron microscopy.
| Evidence | Lindlar-Kaiserau | Murieta | Tršice | Seremban |
|---|---|---|---|---|
| ISO 9001 | ||||
| ISO 14001 | ||||
| ISO 45001 | ||||
| ISO 50001 | ||||
| AD 2000-Merkblatt HP0 (Manufacturer/Welding Shop) | ||||
| ISO 3834-2 | ||||
| Directive 2014/68/EU (EN 764-5, AD 2000-W0) | ||||
| DIN EN ISO/IEC 17025 (Laboratory) | ||||
| TSSA QA-11298 (CSA B51 / ASME B31.3) |
History
- 1879
Founded as a steel trading company in Frankfurt am Main by Ludwig Schmidt and Wilhelm Clemens (May 1)
- 1900
Relocation to Lindlar-Kaiserau (today's headquarters), purchase of the first water-powered hammers
- 1921
Registration of the MÄRKER STAHL trademark
- 1932
Start of static casting production
- 1950
Start of horizontal centrifugal casting
- 1954
Start of vertical centrifugal casting
- 1956
Start of investment casting production
- 1962
First centrifugally cast tube delivered to the petrochemical industry
- 1974
Founding of CENTRACERO, S.A. in Spain (today Schmidt-Clemens Spain, Murieta)
- 1997
Founding of S+C ALFANAMETAL (Czech Republic), acquisition of Bowers & Jones (UK)
- 1998
Start of shell mould casting at S+C ALFANAMETAL
- 2001
Founding of Schmidt + Clemens (Asia) Sdn. Bhd. (Malaysia)
- 2009
Establishment of the Research & Development Services department
- 2010
Opening of the Technology Center at the Lindlar headquarters
- 2015
Opening of the new plant in Seremban, Malaysia
- 2016
Founding of Schmidt & Clemens Engineering Services Sdn. Bhd. (Sepang)
- 2024
145th anniversary; 50 years of SCHMIDT-CLEMENS SPAIN