What piping material is used in Pharmaceutical plants?
Pharmaceutical service typically specifies ASTM A182 F316L as the default for product contact, A270 and A269 hygienic tube, A312 TP316L pipe, Hastelloy C276 and Inconel 625 for corrosive intermediates, and titanium Grade 2 on specific acid dut. Kalp Alloys manufactures these grades in Ahmedabad, India, with EN 10204 3.1 or 3.2 mill test certificates issued in its own name.
Key Takeaways
- Grades this sector specifies: ASTM A182 F316L as the default for product contact, A270 and A269 hygienic tube, A312 TP316L pipe, Hastelloy C276 and Inconel 625 for corrosive intermediates, and titanium Grade 2 on specific acid duties.
- Standards applied: ASME B16.5 and EN 1092-1 for flanges, ASME BPE where bioprocessing applies, ASTM A270 for sanitary tube, ASTM A403 for stainless fittings and ASTM A312 for pipe.
- Documentation demanded: EN 10204 3.1 as a minimum, surface roughness (Ra) measurement on product contact surfaces, ASTM A262 intergranular corrosion testing, ferrite content where applicable, and complete heat traceability for validation files.
- Kalp Alloys manufactures all of the above at its own plant in Ahmedabad, with certificates issued in its own name.
- Third-party inspection by SGS, BV, TUV or Lloyds can be witnessed before dispatch.
- Size range NPS 1/2 inch to 48 inch, Class 150 to 2500 and PN6 to PN64.
What makes Pharmaceutical service demanding
Pharmaceutical and bulk drug manufacture controls surface finish, cleanability and material traceability as tightly as it controls corrosion resistance, because product contact surfaces are subject to validation.
Grades specified in Pharmaceutical plants
ASTM A182 F316L as the default for product contact, A270 and A269 hygienic tube, A312 TP316L pipe, Hastelloy C276 and Inconel 625 for corrosive intermediates, and titanium Grade 2 on specific acid duties.
Selection is made circuit by circuit rather than plant-wide. The table below maps the common positions in a pharmaceutical plant to the material normally specified for each.
| Application | Material normally specified |
|---|---|
| Product contact process lines | F316L with controlled Ra, typically 0.5 micrometre or better |
| Purified water and WFI | F316L with electropolished internal surface |
| Clean steam distribution | F316L hygienic tube and fittings |
| API and intermediate reactors | Hastelloy C276 and Inconel 625 on corrosive synthesis steps |
| Solvent recovery | F316L and A105 where corrosion is not governing |
| Utility and plant services | A105 carbon steel and standard 316L instrumentation fittings |
Standards this sector works to
ASME B16.5 and EN 1092-1 for flanges, ASME BPE where bioprocessing applies, ASTM A270 for sanitary tube, ASTM A403 for stainless fittings and ASTM A312 for pipe.
Both the dimensional standard and the material specification appear on a correct purchase order, because they govern different things. A line item reading “weld neck flange, 6 inch, Class 300, RF, ASTM A182 F316L, ASME B16.5” is unambiguous; one reading “6 inch stainless flange” is not.
Documentation Pharmaceutical buyers require
EN 10204 3.1 as a minimum, surface roughness (Ra) measurement on product contact surfaces, ASTM A262 intergranular corrosion testing, ferrite content where applicable, and complete heat traceability for validation files.
For a validated facility the certificate is part of the product record, not an accompanying document. Material that arrives without complete traceability cannot be installed on a product-contact line regardless of its actual quality, because the validation file needs the heat number and the test results. That makes a manufacturer-issued certificate materially more useful than a trader-issued copy.
The full document pack, and how to read each block of the certificate, is set out on our EN 10204 mill test certificate page.
Supplying Pharmaceutical projects from Ahmedabad
Kalp Alloys is a manufacturer, not a stockist. Forging, machining and inspection run at our own facility at 5, Jay Vijay Industrial Estate, B/h. Akash Vikas Estate, Keval Kanta Road, Rakhial, Ahmedabad, so the heat number traces to our own record and the mill test certificate carries our name.
For a sector where the certificate forms part of an approval file, a validation record or a class submission, that difference is the whole argument. A certificate passed down a trading chain names a mill the buyer cannot query and did not choose.
Stock sizes dispatch in three to seven days. Made-to-drawing items carry a firm lead time quoted at order confirmation, and there is no minimum order on stock sizes.
Frequently Asked Questions
ASTM A182 F316L as the default for product contact, A270 and A269 hygienic tube, A312 TP316L pipe, Hastelloy C276 and Inconel 625 for corrosive intermediates, and titanium Grade 2 on specific acid duties.
ASME B16.5 and EN 1092-1 for flanges, ASME BPE where bioprocessing applies, ASTM A270 for sanitary tube, ASTM A403 for stainless fittings and ASTM A312 for pipe.
EN 10204 3.1 as a minimum, surface roughness (Ra) measurement on product contact surfaces, ASTM A262 intergranular corrosion testing, ferrite content where applicable, and complete heat traceability for validation files.
Yes. Inspection by SGS, BV, TUV or Lloyds can be witnessed at our Ahmedabad plant before dispatch, and the release note is issued with the EN 10204 3.2 certificate.
Yes. Non-standard bores, thicknesses, drilling patterns and facing finishes are produced to customer drawing. Send the drawing by email or WhatsApp at +91 81608 73937 and the technical team responds with grade and forging options.
No. There is no minimum order on stock sizes and trial quantities are accepted, so a buyer can verify material and documentation before committing to a project quantity.