Plant Engineering
General plant work is where availability and lead time usually decide the specification. The requirement is rarely exotic — it is the right grade, in the right form, in the right quantity, this week. This is the duty that held stock exists to serve.
What gets specified in plant engineering
Ordered by how commonly they are called for in this sector.
- UNS S30400 / S30403304 / 304LPREN 19
The default austenitic stainless. 18% chromium, 8% nickel, no molybdenum.
- UNS S31600 / S31603316 / 316LPREN 25
304 plus 2–3% molybdenum. The standard answer to chlorides and mild acids.
- UNS S40900 / S41000 / S43000400 SeriesPREN 17
Ferritic and martensitic chromium grades. Magnetic, nickel-free, hardenable.
- UNS S20100 / S20200200 SeriesPREN 16
Manganese and nitrogen substitute for nickel. A cost-driven austenitic family.
- UNS S32100 / S32109321 / 321HPREN 19
304 stabilised with titanium. Resists sensitisation in the 425–815 degrees C range.
Applications
05- Utility and service piping
- Structural supports and walkways
- Tanks and hoppers
- Guarding and enclosures
- General fabrication
Governing standards
03- ASTM A312
- ASTM A240
- ASTM A276
Verification available
10- Spectrometer
- Chemical Testing Laboratory
- Positive Material Identification (PMI)
- Spectro Test
- Tensile Testing Machine
- Hardness Testing Machine
- Portable Hardness Tester
- Flattening Test
- Reverse-Bend Test
- Hydrostatic Test Machine
What plant engineering buys
Other industries
Supplying into plant engineering?
Send the specification and service conditions. We will confirm the grade, the availability and the documentation you will need.