Tatvam Overseas Inc is a premier Mumbai stockist and exporter of ASTM-certified stainless steel sheets, plates, coils, seamless pipes, and round bars. Operating from Girgaon and Kalbadevi since 1992, we maintain over 700 tons of prime SS 304, 316L, 321, 310S, and 2205 stock with EN 10204 3.1 MTCs and same-day dispatch.
What Stainless Steel Product Categories Are in Ready Stock?
SS 304 / 304L Sheets & Plates
General-purpose austenitic grade with superior formability and corrosion resistance. Available in 2B, BA, and No.4 hairline finish.
View SS 304 Details
SS 316 / 316L Marine Plates
Molybdenum-bearing marine grade alloy offering superior resistance against chloride pitting and acid environments.
View SS 316L Details
SS Pipes & Instrumentation Tubes
ASTM A312 seamless and welded pipes across Sch 10, Sch 40, Sch 80, and Sch 160. Precision OD tubing available.
View SS Pipes Details
Round Bars, Angles & Flats
Bright annealed and peeled bars (3 mm to 300 mm dia) along with structural angles, channels, and flat bars.
View Bars & Profiles
Decorative & PVD Designer Sheets
Gold, Rose Gold, Black Titanium, 8K Mirror, Etched, Embossed, and 3D Water Ripple sheets for luxury architecture.
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Duplex 2205 (UNS S32205 / S31803)
High-strength dual-phase austenitic-ferritic steel with exceptional chloride stress corrosion cracking resistance.
View Duplex 2205 DetailsWhat Are the Standards and Chemical Compositions of Key SS Grades?
Comparison of standard chemical composition, ASTM manufacturing standards, and typical finishes available across our Mumbai warehouse inventory.
| Grade | Standard | Chemical Composition | Sizes / Thickness | Finishes |
|---|---|---|---|---|
| SS 304 / 304L | ASTM A240 / A312 | Cr: 18-20%, Ni: 8-10.5%, C: ≤0.03-0.08% | 0.5 mm to 50 mm / 1/4" to 24" NB | 2B, BA, No.4, No.1, Mirror |
| SS 316 / 316L | ASTM A240 / A312 | Cr: 16-18%, Ni: 10-14%, Mo: 2-3%, C: ≤0.03% | 0.5 mm to 50 mm / 1/4" to 24" NB | 2B, No.4, No.1 Pickled |
| SS 321 | ASTM A240 / A312 | Cr: 17-19%, Ni: 9-12%, Ti: 5x(C+N) min | 1.0 mm to 30 mm / TODO: custom sizes | 2B, No.1 Industrial |
| SS 310S | ASTM A240 / A312 | Cr: 24-26%, Ni: 19-22%, C: ≤0.08% | 1.5 mm to 40 mm / Sch 40 to Sch 160 | No.1 Heat Resistant |
| Duplex 2205 | ASTM A240 / A790 | Cr: 22-23%, Ni: 4.5-6.5%, Mo: 3-3.5%, N: 0.14-0.20% | 2.0 mm to 40 mm / 1/2" to 16" NB | No.1 Pickled, Mill Finish |
Engineering Knowledge & Selection Guides
SS 304 vs SS 316L: Which to Choose?
Deep dive into molybdenum differences, PREN pitting calculations, welding sensitization, and coastal lifespan.
Read Technical GuideUnderstanding EN 10204 3.1 MTCs
How to inspect heat numbers, chemical spectral analysis, mechanical yield tests, and third-party witness protocols.
Read MTC GuideFrequently Asked Questions About Stainless Steel Supply
What factors determine stainless steel prices in Mumbai? ↓
What sizes, thicknesses, and finishes are available in ready stock? ↓
What manufacturing standards and MTC documentation do you supply? ↓
What is the Minimum Order Quantity (MOQ) and delivery timeline? ↓
What payment terms do you offer for domestic and export buyers? ↓
Stainless Steel Inquiry
Share your required grades, thickness, schedule, and quantity. Quote within 2-4 working hours (Mon-Sat, 9 AM-7 PM IST).
Engineering Resources
Calculate stainless steel weights or view sample Mill Test Certificates.