Stainless Steel 321 Pipes
Stainless Steel 321 Pipes : Manufacturer, Supplier & Distributor : Kinnari Steel
Kinnari Steel Corporation is a highly popular and well-established name for manufacture and supply of Stainless Steel 321 Pipes. Working for more than 2 decades in the industry, we now hold great expertise in this field. We are well known among our clients who are spread all over the world. With the excellent services that we providing, our client base is only increasing.
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WHAT IS STAINLESS STEEL 321?
Stainless steel 321 is an austenitic alloy similar to type 304 stainless steel, but it contains titanium in addition to at least five times the carbon content. Due to the addition of titanium, the carbide precipitation is reduced multifold during the process of welding. In stainless steel 321, the carbon combines preferentially with titanium and forms harmless titanium carbide, and the chromium in solution maintains full corrosion resistance.
INTRODUCTION ABOUT STAINLESS STEEL 321 PIPES
Stainless Steel 321 Pipes are comprised standard austenitic 18/8 chromium nickel alloy with the addition of Titanium, that stabilises the material, removing its susceptibility to the effects of intergranular corrosion. Due to this property, it is a highly preferred product in high-temperature environments. This grade of steel shows brilliant forming and welding qualities and also holds excellent toughness even at cryogenic temperatures.
Stainless Steel 321 Pipes have their applications in the heat treatment industry as they have high-temperature sustaining capabilities. They are used as furnace parts, heat exchangers, and even in aircraft exhausts. Other uses include use in refineries and thermal oxidizers. This pipe work efficiently under high pressure and temperature and are thus in high demand.
Specification
| Standard | UNS |
| 321 | S32100 |
PROPERTIES OF STAINLESS STEEL 321
CHEMICAL PROPERTIES
| Cr | Ni | Mo | Cu | Ti | C | Mn | Si | P | S | N | Fe | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| MIN | 17.0 | 9.0 | – | – | 5x(C+N) | – | – | 0.25 | – | – | – | – |
| MAX | 19.0 | 12.0 | 0.75 | 0.75 | 0.70 | 0.08 | 2.0 | 1.0 | 0.04 | 0.03 | 0.1 | Bal |
MECHANICAL PROPERTIES
| 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 |
| 321H | 515 | 205 | 40 | 95 | 217 |
| 347 | 515 | 205 | 40 | 92 | 201 |
| 321H also has a requirement for a grain size of ASTM No 7 or coarser | |||||
PHYSICAL PROPERTIES
| Grade | Density (kg/m3) |
Elastic Modulus (GPa) |
Mean Coefficient of Thermal Expansion (μm/m/°C) |
Thermal Conductivity (W/m.K) |
Specific Heat 0- 1000C (J/kg.K) |
Electrical Resistivity (nΩ.m) |
|||
|---|---|---|---|---|---|---|---|---|---|
| 0-1000C | 0-3150C | 0-5380C | at 1000C | at 5000C | |||||
| 321 | 8027 | 193 | 16.6 | 17.2 | 18.6 | 16.1 | 22.2 | 500 | 720 |
APPLICATIONS OF STAINLESS STEEL 304 PIPES
Typical applications include:
- High-temperature chemical process equipment
- Aircraft piston engine manifolds and exhaust stacks
- Expansion joints
- Thermal oxidizers
- Refinery equipments
- Furnace parts
- Heating element tubing
- Heat Exchangers
- Woven or welded screens for high-temperature mineral processing
- Spiral Welded tube for burner pipes and flues
- High-temperature steam service
ABOUT KINNARI STEEL
Kinnari Steel Corporation is a leading distributor of Stainless Steel and Alloy Steel Products. We have been involved in manufacturing and supplying stainless steel 316 pipes since 2 decades. We hold great expertise in sourcing needs of clients for nickel based Alloys. Our aim is to provide best services in the industry and over the years we have gained much prominence due to propulsion and expertise in high nickel alloys. We thus handle each of our clients’ queries with great sincerity and help them figure out their requirements.
In order to maintain the highest standards of quality we make sure that each and every unit is individually inspected and tested, thereby cropping out the scope of any sort of anomaly. Great emphasis is placed on making our products in an environment-friendly way and prevents any kind of harm to nature. We are known across our clients for fast delivery of high products and we have a very low rejection rate. We put great efforts in catering to the needs of our clients and thus we have a huge base of happy customers.
Our head office is located in Mumbai. Kinnari Steel Corporation is certified by ISO 9001: 2008 for continued excellence in providing impeccable quality products to its customers.
WHAT PROBLEMS CUSTOMERS TYPICALLY FACE
- Nonavailability of products
- Poor quality of products
- Late delivery of packages
- Poor /Unprofessional Packing
- No Mill test report
- Poor after sales services
- Supply of wrong grades
- Material inconsistent with ASTM Standards
- Product fails under high pressure
- High pricing of the goods due to supplier commission
- No testing of the goods
- Weld repair of goods
HOW WE SOLVE THESE PROBLEMS AND VALUE ADDITIONS WE PROVIDE
- Our customers are offered a World class buying experience
- We offer the fastest delivery of goods
- Mill test report/ Digital Mill test report in accordance with EN10204 NACE 3.1, NACE 3.2
- We carry out 3rd Party inspection
- Our products have high-pressure sustainability
- We offer product replacement warranty
- Our team works dedicatedly for after sales support and services
- We provide high-quality packaging/ Premium Packaging and Packing for sea and Air transport
- Same day shipping of the goods is provided
- ISO 9001:2008 , ISO 14001:2004, OHSAS 18001:2007 Certifications
- We have maintained <1% rejection rate of the goods in over a decade
- We offer competitive pricing
- KSC hold a great expertise in working with Nickel-Based Alloys
- Heat Number Traceability
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