Corrosion & Acid Resistant Chemical Plant Castings
TDC Alloys is an ISO 9001:2015 certified Chemical Plant Parts Casting Manufacturer in India, manufacturing high-integrity corrosion-resistant and heat-resistant alloy castings for petrochemical complexes, chemical refineries, fertilizer plants, acid manufacturing facilities, and pharmaceutical processing units across India.
We manufacture chemical plant castings from 5 kg up to 3,000 kg per piece, specializing in austenitic stainless steels (CF8, CF8M, CF3M), duplex & super duplex stainless steels (2205, 2507), high-nickel superalloys (Hastelloy, Monel), and acid-resistant alloy steels engineered for severe corrosive, toxic, and high-pressure media.
Chemical Plant Parts Casting Manufacturer Showcase
TDC Alloys Foundry
Chemical Pump Casing & Volute
Acid-Resistant Valve Body
Vessel Agitator & Impeller
Chemical Metallurgy & Alloy Standards
As a specialized Chemical Plant Parts Casting Manufacturer in India, TDC Alloys pours certified high-corrosion, acid-proof, and cryogenic boundary alloys:
Austenitic Stainless Steels (ASTM A351 CF8, CF8M, CF3, CF3M / SS 304, 316, 316L)
Superior general corrosion resistance against organic acids, nitric acid, and neutral salts for chemical pump volutes, valve bonnets, reactor covers, and pipe manifolds.
Duplex & Super Duplex Stainless Steels (ASTM A890 / A995 Gr. 4A 2205 & Gr. 5A 2507)
Exceptional resistance to pitting, crevice corrosion, and chloride stress corrosion cracking with PREN ≥ 42 for seawater cooling, chlor-alkali units, and phosphoric acid plants.
Nickel-Chromium-Molybdenum Superalloys (Hastelloy C-276 & Alloy 20 Equivalents)
Unmatched resistance to wet chlorine gas, hypochlorite, sulfuric acid, and strong oxidizing/reducing environments for high-temperature chemical process vessels.
Low-Temperature & Pressure boundary Steels (ASTM A352 LCC / LCB & A216 WCB)
Verified impact toughness down to -46°C with 100% hydrostatic integrity for liquefied chemical storage, cryogenic transfer valves, and autoclave bodies.
Mechanical Properties & Material Performance
Our automated solution annealing, water quenching, and passivating heat treatments tailor chemical resistance and mechanical integrity:
| Grade / Standard | Tensile Strength (MPa) | Yield Strength (MPa) | Elongation (%) | Hardness (HB / HRC) | Primary Chemical Application |
|---|---|---|---|---|---|
| CF8M / SS 316 (ASTM A351) | 485 - 650 | ≥ 205 | ≥ 30% | 140 - 180 HB | Acid Pump Volutes, Valve Bodies, Flanged Fittings |
| CF3M / SS 316L (ASTM A351) | 485 - 620 | ≥ 205 | ≥ 30% | 130 - 170 HB | Weldable Reaction Vessels, Manifolds, Piping Spools |
| Duplex 2205 (ASTM A890 4A) | 620 - 780 | ≥ 415 | ≥ 25% | 210 - 260 HB | Chloride Slurry Pumps, High-Pressure Heat Exchangers |
| Super Duplex 2507 (ASTM A890 5A) | 690 - 850 | ≥ 515 | ≥ 18% | 240 - 290 HB | Seawater Cooling Systems, Phosphoric Acid Stirrers |
| Alloy 20 / CN7M (ASTM A351) | 425 - 580 | ≥ 170 | ≥ 35% | 130 - 170 HB | Sulfuric Acid Tanks, Pickling Pumps, Mixing Impellers |
| Hastelloy C-276 Equivalent (CW12MW) | 690 - 820 | ≥ 310 | ≥ 40% | 180 - 230 HB | Wet Chlorine, Organic Chlorides & Severe Corrosives |
Chemical Plant Applications Across India
Leading petrochemical refineries, agrochemical plants, bulk drug manufacturers, and industrial chemical EPCs across India rely on TDC Alloys for dependable performance:
Quality Assurance, Testing & MTC Certification
Every Chemical Plant Parts Casting Manufacturer in India manufactured by TDC Alloys undergoes meticulous non-destructive and destructive examination:
28-Element Optical Emission Spectrometry
Direct-reading spectrometry certifies carbon, chromium, nickel, molybdenum, and nitrogen levels for optimum corrosion resistance.
Solution Annealing & Water Quenching
Computerized heat treatment at 1050°C - 1120°C followed by rapid quenching dissolves intergranular chromium carbides.
Intergranular Corrosion (IGC) & NDT Testing
ASTM A262 Practice E/A IGC testing, 100% Liquid Dye Penetrant (DPT), Hydrostatic Pressure testing, and Ultrasonic (UT) testing.
EN 10204 3.1 & 3.2 Certification
Complete MTC dossiers with heat numbers, chemical analysis, mechanical values, hydrostatic test charts, and third-party inspection signoffs.
Why Choose TDC Alloys for Chemical Plant Parts Casting Manufacturer in India?
Leading chemical engineering EPCs, process plant builders, and industrial pump/valve OEMs across India partner with TDC Alloys:
Frequently Asked Questions
1. What chemical plant parts and equipment components does TDC Alloys cast?
We manufacture components for chemical slurry pumps (volutes, impellers), process valves (bodies, bonnets, discs), reaction vessels (agitator blades, nozzles, baffles), heat exchangers (tube sheets), and custom flanged manifolds.
2. What stainless steel and alloy grades are poured for chemical service?
We cast ASTM A351 CF8, CF8M (SS 316), CF3M (SS 316L), CN7M (Alloy 20), Duplex 2205 (A890 4A), Super Duplex 2507 (A890 5A), Hastelloy C-276 equivalents, and acid-resistant alloy steels.
3. Does TDC Alloys perform Intergranular Corrosion (IGC) testing on chemical castings?
Yes. All stainless steel and duplex batches undergo certified Intergranular Corrosion (IGC) testing per ASTM A262 Practice E/A to ensure resistance to intergranular attack in aggressive acid media.
4. Can TDC Alloys supply pressure-tested and finish CNC machined chemical parts in India?
Yes. Our in-house machine shop delivers proof-machined or finished CNC-machined components with 100% hydrostatic pressure testing ready for immediate pipeline and equipment assembly.
5. Can TDC Alloys cast replacement chemical parts from old worn-out samples or 2D drawings?
Yes. Our metallurgical and engineering team uses 3D coordinate scanning and CAD modeling to reverse-engineer obsolete chemical pump volutes, impellers, and valve bodies with optimized alloy metallurgy.
Request a Chemical Plant Parts Casting Quote for India
Submit your drawings, material specifications, and batch quantities for prompt technical review and direct foundry pricing.