Get High-Quality ASTM A240 321 Stainless Steel Coil, UNS S32100 Stainless Steel Coil, Cold Rolled 321 Stainless Steel Coil, Hot Rolled 321 Stainless Steel Coil
Nandini Steel manufactures, supplies, stocks, and exports 321 Stainless Steel Coil, a titanium-stabilized austenitic stainless steel grade developed for applications involving elevated temperatures and demanding service conditions. The alloy offers high-temperature strength, good weldability, toughness, and resistance to intergranular corrosion. Its titanium stabilization helps maintain corrosion resistance after welding and prolonged heat exposure, making it suitable for chemical processing, heat exchangers, furnace components, power generation, and other high-temperature equipment. As an experienced SS 321 Coil Supplier, Nandini Steel provides coils for both domestic and international industrial requirements.
ASTM A240 321 Stainless Steel Coil is manufactured according to ASTM A240 requirements, with ASME SA240 applicable for pressure vessel and related applications. The grade is identified by UNS S32100 and contains chromium, nickel, and titanium as its principal alloying elements. Chromium content is typically 17.00–19.00%, while nickel ranges from 9.00–12.00%. Carbon is limited to 0.08% maximum, with titanium added for stabilization. Titanium helps prevent chromium carbide precipitation at grain boundaries during welding and elevated-temperature exposure, improving resistance to intergranular corrosion. The material offers a minimum tensile strength of 515 MPa, yield strength of 205 MPa, and elongation of 40%. UNS S32100 Stainless Steel Coil is available in hot-rolled and cold-rolled forms, with different thicknesses, widths, and finishes such as 2B, No. 1, No. 4, and BA. Slitting, cut-to-length, and customized dimensions can also be supplied according to project requirements.
321 Stainless Steel Coil is used in chemical processing equipment, petrochemical plants, oil and gas systems, heat exchangers, furnace components, aerospace exhaust systems, power generation equipment, and other applications exposed to elevated temperatures or repeated thermal cycling. The grade offers good forming and fabrication characteristics and can be welded using common methods such as TIG, MIG, and resistance welding. Nandini Steel supplies hot-rolled and cold-rolled coils with slitting, cutting, and customized sizing options where required. Quality checks can include Positive Material Identification (PMI), chemical analysis, tensile and yield strength testing, and hardness testing. Material is supplied with Mill Test Certificates (MTC) and heat-number traceability, while third-party inspection through agencies such as SGS, BV, or TUV can be arranged according to buyer requirements. As an SS 321 Coil Supplier, Nandini Steel supports domestic orders as well as international shipments with the required inspection and export documentation.
Most Trusted 321 Stainless Steel Coil Manufacturers, Top 321 Stainless Steel Coil Exporter in India, 321 SS Perforated Coil Stockist, Stainless Steel 321 Coil, Werkstoff No. 1.4541 Coil Manufacturer, Leading Stainless Steel 321 Coil Suppliers in Mumbai, India.
Key Features of 321 Stainless Steel Coil
- Superior Heat Resistance: Compared to standard 304 stainless steel, the 321 Stainless Steel Coil has superior resistance to oxidation and scaling, particularly at elevated temperatures.
- Titanium Stabilization: Titanium addition ensures stability of the coil and freedom from chromium carbide precipitation which increases its corrosion resistance, particularly at high temperatures.
- Increased Strength: This type of stainless steel functions better under thermal stress and can withstand its structure even when exposed to varying temperatures.
- Manufacturing Versatility: Though identical to 304 stainless steel 321 Stainless Steel Coil is better for use in continuous heat exposure environments.
- Increased Lifespan: In contrast to other grades this alloy has a longer lifespan, which decreases the rate of replacements in high-temperature applications.
- Improved Resistance to Intergranular Corrosion: In comparison, to 304 stainless steel, 321 is very resistant to corrosion under heat and hostile chemicals.
Compositions and Properties of 321 Stainless Steel Coil
The unique composition of 321 Stainless Steel Coil sets it apart from other stainless steel grades. The essential elements consist of about 17-19% chromium and 9-12% nickel to which 0.5% titanium is added. This mixture yields superior oxidation resistance and intergranular corrosion especially in high-temperature environments. The titanium content stabilizes the alloy to avoid chromium carbide formation, which can weaken the material’s strength. Excellent weldability and high strength-to-weight ratio make the 321 Stainless Steel Coil perform well in tough conditions without losing its mechanical properties and its performance following prolonged exposure to harsh heat.
Packaging, Testing & Delivery
We understand the importance of secure and reliable delivery.Our 321 Stainless Steel Coil items are properly packaged to prevent any damage during shipping, so they will reach your doorstep in their best condition. Our coils are tested with strict testing processes to achieve international quality standards. We are an ISO 9001:2015 certified company, which guarantees that each coil we manufacture has the highest quality assurance standards. From first inspection to final delivery we make sure our products undergo strict mechanical property, dimensional and surface finish testing.Our dedication to excellence ensures you receive the finest quality 321 Stainless Steel Coil on every occasion.
Don’t compromise on quality, trust us for all your 321 Stainless Steel Coil needs. Whether you’re looking for precision coils for critical applications or reliable bulk orders, we’ve got you covered. Contact us today to get more information or place your order. Let us help you choose the right materials for your next project!
Why Choose Nandini Steel for Stainless Steel 321 Coil?
- Manufacturer, supplier, stockist and exporter of 321 Stainless Steel Coil, supplying fabricators, contractors, and OEMs directly from stock.
- Material supplied under ASTM A240 / ASME SA240 specifications, with UNS S32100 Stainless Steel Coil chemistry and mechanical properties confirmed on every heat.
- Thickness from 0.3 mm to 6 mm and width up to 1500 mm, in 2B, No. 1, No. 4, and BA finishes, with hot-rolled and cold-rolled coil condition available.
- Custom sizing through slitting, shearing and laser cutting, so coils arrive cut to the dimension the task needs.
- PMI, chemical analysis, mechanical and hardness testing on every batch, backed by mill test certificates and full heat traceability.
- Third-party inspection arranged on request, for buyers working to client-specified QA protocols or LC terms.
- Bulk order capacity for project-scale requirements, with export documentation and freight coordination handled for international shipments.
- ISO-certified stock and quality system, covering alloy steel, nickel alloy and stainless steel grades beyond 321 for buyers sourcing multiple materials from one supplier.
- Stock positions held across common thickness and finish combinations, which keeps lead time short for repeat orders and standard sizes.
Contact Nandini Steel for current stock availability and pricing on 321 Stainless Steel Coil.
Other Types Stainless Steel 321 Coils
SS 321 Hot Rolled Coils
SS 321 Cold Rolled Coils
SS 321 Polished Coils
SS 321 Matt PVC Coils
Stainless Steel 321 Slitting Coils
Stainless Steel 321 Strip Coils
SS 321 HR Coils
2B SS 321 Coils
Stainless Steel 321 Coils Specification
Specifications: ASTM B575 / ASME SB575
Thickness: 0.3 mm to 120 mm
Width: 1000 mm to 3500 mm
Length: 2000 mm / 2500 mm / 3000 mm / 6000 mm
Finishes: 2B, 2D, BA NO (8), Cold rolled Plates (CR), Hot rolled plate (HR)
Hardness: Half Hard, Quarter Hard, Soft, Hard, Spring Hard
| Grade | C | Mn | Si | P | S | Cr | Mo | Ni | N | other | ||
| 321 | min. max. | – 0.08 | – 2.0 | – 0.75 | – 0.045 | – 0.030 | 17.0 19.0 | – | 9.0 12.0 | – 0.10 | Ti=5(C+N) 0.70 | |
| Grade | Tensile Strength (MPa) min | Yield Strength 0.2% Proof (MPa) min | Elongation (% in 50mm) min | Hardness | |
| Rockwell B (HR B) max | Brinell (HB) max | ||||
| 321 | 515 | 205 | 40 | 95 | 217 |
| STANDARD | WERKSTOFF NR. | UNS | JIS | AFNOR | BS | GOST | EN |
| SS 321 | 1.4541 | S32100 | SUS 321 | – | – | – | – |
Stainless Steel 321 Coil Thickness Chart
| Strip Thickness | Width | |||
| 320≤W＜600 | W＜320 | |||
| T1 | T2 | T3 | T4 | |
| T＜0.05 mm | 0.004 | 0.003 | 0.003 | 0.002 |
| 0.05≤T＜0.07 | 0.005 | 0.004 | 0.004 | 0.003 |
| 0.07≤T＜0.08 | 0.006 | 0.005 | 0.005 | 0.003 |
| 0.08≤T＜0.10 | 0.007 | 0.005 | 0.005 | 0.003 |
| 0.10≤T＜0.13 | 0.009 | 0.007 | 0.006 | 0.004 |
| 0.13≤T＜0.15 | 0.010 | 0.008 | 0.007 | 0.004 |
| 0.15≤T＜0.20 | 0.011 | 0.009 | 0.008 | 0.004 |
| 0.20≤T＜0.25 | 0.013 | 0.010 | 0.008 | 0.005 |
| 0.25≤T＜0.30 | 0.015 | 0.011 | 0.009 | 0.005 |
| 0.30≤T＜0.35 | 0.016 | 0.012 | 0.010 | 0.005 |
| 0.35≤T＜0.40 | 0.018 | 0.012 | 0.010 | 0.005 |
| 0.40≤T＜0.50 | 0.020 | 0.015 | 0.012 | 0.005 |
| 0.50≤T＜0.60 | 0.022 | 0.018 | 0.013 | 0.005 |
| 0.60≤T＜0.70 | 0.024 | 0.020 | 0.015 | 0.005 |
| 0.70≤T＜0.80 | 0.026 | 0.022 | 0.017 | 0.005 |
| 0.80≤T＜0.90 | 0.028 | 0.024 | 0.018 | 0.006 |
| 0.90≤T＜1.00 | 0.032 | 0.027 | 0.020 | 0.008 |
| 1.00≤T＜1.20 | 0.035 | 0.030 | 0.022 | 0.008 |
| 1.20≤T＜1.40 | 0.040 | 0.035 | 0.025 | 0.010 |
| 1.40≤T＜1.60 | 0.045 | 0.040 | 0.030 | 0.020 |
Weight Per Stainless Steel 321 Coil
| Thick. on base (millimeter) | Unit Wght / Coil (kilogram) |
| 3000 x1000 x3.0 | 78.0 |
| 3000 x1250 x4.5 | 143.0 |
| 3000 x1250 x6.0 | 180.0 |
| 3000 x1250 x8.0 | 210.0 |
Stainless Steel 321 Coil Stockist Distributor of Following Manufacturers
ThyssenKrupp Make SS 321 Coils
Aperam Make Stainless Steel 321 Coil
Outokumpu Make SS 321 Coil
Nippon Steel & Sumitomo Metal Make SS 321 Coil
Posco Make Stainless Steel 321 Coils
Jindal Make Stainless Steel 321 Coil
JFE Steel Corporation Make SS 321 Coil
Essar Make Stainless Steel 321 Coil
Stainless Steel 321 Coil Finish Types
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