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Stainless Steel Supplier

Stainless steel material suppliers, 316 Stainless steel Products distributor, Stainless steel 304 material stockist, Stainless steel material dealers in Mumbai, India, Stainless steel price in India


Stainless Steel Suppliers

 


Stainless Steel

What is stainless steel?

It is an iron alloy, containing a minimum of 10.5% chromium. Although grades such as 304 and 430 are popular grades, the term ‘stainless steel’ covers a wide variety of metals, each enhanced with various alloying elements to give specific properties such as increased corrosion resistance or improved strength.
Stainless steel has become very popular due to its relatively low cost, aesthetic appearance, high corrosion resistance and low maintenance.

What makes it stainless?

Stain’less’ steel is just that…stain’less’ and not stain’never’. The chromium in the stainless steel reacts with the oxygen in the air creating a very thin, protective chromium oxide layer on the surface of the metal. This layer is not visible to the naked eye and protects the surface from corrosion. The layer can be damaged by scratches and sustained exposure to aggressive chemicals, however, because the layer is formed by the reaction of the chromium with air, when the surface is suitably cleaned, the protective chromium oxide layer self-repairs to continue to protect the steel.
Grade 304 (1.4301) is the grade most often used for corrosion resistant reinforcement, suitable for most atmospheric and concrete covered environments.

Grade 316 (1.4401) has a higher molybdenum and nickel content than 304 (1.4301). It is more expensive but also has higher corrosion resistance and is the recommended grade for marine and corrosive environments.

Although the chemical composition and corrosion resistance are different, the physical properties of the 2 grades are similar.
Common grades provided
Stainless Steel is a widely used material across industries because of its corrosion resistance and high versatility. Notably, this tough metal requires relatively low maintenance.

The grades vary depending on the amounts of Carbon, Silicon, Manganese and other elements used in the properties. It is commonly referred to by its grade numbers. We offer a wide range of grades including 301, 303, 304, 304L, 310, 316, 316L, 321, 410, 416, 420, 430 and 440. The grade of steel required depends on your application and use.

We are also able to call upon the unrivalled range of stainless steel products that are available from our extensive warehouses to ensure that we can offer the products that our customers require, no matter how diverse.

As well as our extensive stock range of “standard” products we are also able to offer industry and customer specific services worldwide.

Stainless Steel Types

There are five major types of stainless steel.

Austenitic stainless steels are 200 series or 300 series. They are non magnetic and have high corrosion resistance. They can be hardened only by cold working – not by heat treatment. They are highly formable. But, they are prone to stress corrosion cracking. There are three subtypes: straight, L and H. Popular straight types are grades are 201, 202, 301, 302, 303, 304, 305, 308, 309, 310, 314, 316, 317, 321, 347, 348 and 384. L types have higher corrosion resistance than the straight types. Examples include 304L and 316L. H types are suitable for use in high temperature environments. Austenitic stainless steels are used in shafts, valves, bolts, bushings, nuts, aircraft fittings, chemical equipment, food processing equipment, brewing equipment, cryogenic vessels etc.

Ferritic stainless steels are 400 series. They are magnetic. They have lower ductility and lower corrosion resistance than the austenitic grades. But, they offer high resistance to stress corrosion cracking. They are hardened by cold working and are not heat treatable. Some of the popular grades are 405, 409, 430, 434, 442, 436 and 446. Typical applications are heat exchangers, automotive fasteners, furnace parts, heater parts.

Martensitic stainless steels are 400 series and 500 series. They are magnetic. They have higher strength, higher wear resistance and higher fatigue resistance than the austenitic and ferritic grades. They can also be heat treated. But, corrosion resistance is moderate and lower than the austenitic and ferritic grades. They are highly machinable. Some of the popular grades are 410, 414, 416, 420, 440 and 431. Major applications are machine parts, pump shafts, bolts, bushings, coal chutes, cutlery, hardware, jet engine parts, mining machinery, rifle barrels, screws, valves, aircraft fittings, fire extinguisher inserts, rivets.

Precipitation Hardening Grade Stainless Steels are also called PH types. Their corrosion resistance is equivalent to that of austenitic grades and strength is generally higher than that of martensitic grades. They also retain high strength at elevated temperatures. They are heat treatable. They are mainly used in aerospace industry for aerospace structural components. Popular grades include 17-4PH and 15-5PH.

Duplex stainless steels are mixture of austenitic and ferritic. They provide higher corrosion resistance than the austenitic stainless steels. They are also more resistant to stress corrosion cracking than the austenitic stainless steels. They have higher strength than the austenitic grades. Popular UNS duplex grades include S32101, S32304, S32003, S31803, S32205, S32760, S32750, S32550, S32707 and S33207. Typical applications are water treatment plants and heat exchanger components. 

 

Stainless Steel properties

Stainless Steel Chemical Composition

The following table shows the chemical composition of Stainless Steel.

Classification Specification Chemical Composition other
JIS AISI C Si Mn P S Ni Cr Mo Cu N
Martensitic Grades SUS403 403 Max.0.15 Max.0.50 Max.1.00 Max.0.040 Max.0.030 (1) 11.50~13.00 - - - -
SUS410 410 Max.0.15 Max.1.00 Max.1.00 Max.0.040 Max.0.030 (1) 11.50~13.50 - - - -
SUS410J1 - 0.08~0.18 Max.0.60 Max.1.00 Max.0.040 Max.0.030 (1) 11.50~14.00 0.30~0.60 - - -
SUS410F2 - Max.0.15 Max.1.00 Max.1.00 Max.0.040 Max.0.030 (1) 11.50~13.50 - - - Pb 0.05˜0.30
SUS416 416 Max.0.15 Max.1.00 Max.1.25 Max.0.060 Min.0.15 (1) 12.00~14.00 (2) - - -
SUS420J1 420 0.16~0.25 Max.1.00 Max.1.00 Max.0.040 Max.0.030 (1) 12.00~14.00 - - - -
SUS420J2 420 0.26~0.40 Max.1.00 Max.1.00 Max.0.040 Max.0.030 (1) 12.00~14.00 - - - -
SUS420F 420F 0.26~0.40 Max.1.00 Max.1.25 Max.0.060 Min.0.15 (1) 12.00~14.00 (2) - - -
SUS420F2 - 0.26~0.40 Max.1.00 Max.1.00 Max.0.040 Max.0.030 (1) 12.00~14.00 - - - Pb 0.05~0.30
SUS431 431 Max.0.20 Max.1.00 Max.1.00 Max.0.040 Max.0.030 1.25~2.50 15.00~17.00 - - - -
SUS440A 440A 0.60~0.75 Max.1.00 Max.1.00 Max.0.040 Max.0.030 (1) 16.00~18.00 (3) - - -
SUS440B 440B 0.75~0.95 Max.1.00 Max.1.00 Max.0.040 Max.0.030 (1) 16.00~18.00 (3) - - -
SUS440C 440C 0.95~1.20 Max.1.00 Max.1.00 Max.0.040 Max.0.030 (1) 16.00~18.00 (3) - - -
SUS440F S44020 0.95~1.20 Max.1.00 Max.1.25 Max.0.060 Min.0.15 (1) 16.00~18.00 (3) - - -
Ferritic Grades SUS405 405 Max.0.08 Max.1.00 Max.1.00 Max.0.040 Max.0.030 - 11.50~14.50 - - - Al 0.10~0.30
SUS410L - Max.0.03 Max.1.00 Max.1.00 Max.0.040 Max.0.030 - 11.00~13.50 - - - -
SUS430 430 Max.0.12 Max.0.75 Max.1.00 Max.0.040 Max.0.030 - 16.00~18.00 - - - -
SUS430F 430F Max.0.12 Max.1.00 Max.1.25 Max.0.060 Min.0.15 - 16.00~18.00 (2) - - -
SUS434 434 Max.0.12 Max.1.00 Max.1.00 Max.0.040 Max.0.030 - 16.00~18.00 0.75~1.25 - - -
SUS447J1 - Max.0.01 Max.0.40 Max.0.40 Max.0.030 Max.0.020 - 28.50~32.00 1.50~2.50 - Max.0.015 -
SUSXM27 - Max.0.01 Max.0.40 Max.0.40 Max.0.030 Max.0.020 - 25.00~27.50 0.75~1.50 - Max.0.015 -
Austenitic Ferritic Grades SUS329J1 329 Max.0.08 Max.1.00 Max.1.50 Max.0.040 Max.0.030 3.00~6.00 23.00~28.00 1.00~3.00 - - -
SUS329J3L S31803 Max.0.03 Max.1.00 Max.2.00 Max.0.040 Max.0.030 4.50~6.50 21.00~24.00 2.50~3.50 - 0.08~0.20 -
SUS329J4L S31260 Max.0.03 Max.1.00 Max.1.50 Max.0.040 Max.0.030 5.50~7.50 24.00~26.00 2.50~3.50 - 0.08~0.30 -
Austenitic Grades SUS201 201 Max.0.15 Max.1.00 5.50~7.50 Max.0.060 Max.0.030 3.50~5.50 16.00~18.00 - - 0.25?? -
SUS202 202 Max.0.15 Max.1.00 7.50~10.00 Max.0.060 Max.0.030 4.00~6.00 17.00~19.00 - - Max.0.25 -
SUS301 301 Max.0.15 Max.1.00 Max.2.00 Max.0.045 Max.0.030 6.00~8.00 16.00~18.00 - - - -
SUS302 302 Max.0.15 Max.1.00 Max.2.00 Max.0.045 Max.0.030 8.00~10.00 17.00~19.00 - - - -
SUS303 303 Max.0.15 Max.1.00 Max.2.00 Max.0.200 Min.0.15 8.00~10.00 17.00~19.00 (2) - - -
SUS303Se 303Se Max.0.15 Max.1.00 Max.2.00 Max.0.200 Max.0.060 8.00~10.00 17.00~19.00 - - - Se Min.0.15
SUS303Cu - Max.0.15 Max.1.00 Max.3.00 Max.0.200 Min.0.15 8.00~10.00 17.00~19.00 (2) 1.50~3.50 - -
SUS304 304 Max.0.08 Max.1.00 Max.2.00 Max.0.045 Max.0.030 8.00~10.50 18.00~20.00 - - - -
SUS304L 304L Max.0.03 Max.1.00 Max.2.00 Max.0.045 Max.0.030 9.00~13.00 18.00~20.00 - - - -
SUS304N1 304N Max.0.08 Max.1.00 Max.2.50 Max.0.045 Max.0.030 7.00~10.50 18.00~20.00 - - 0.10~0.25 -
SUS304N2 - Max.0.08 Max.1.00 Max.2.50 Max.0.045 Max.0.030 7.50~10.50 18.00~20.00 - - 0.15~0.30 Nb Max.0.15
SUS304LN 304LN Max.0.03 Max.1.00 Max.2.00 Max.0.045 Max.0.030 8.50~11.50 17.00~19.00 - - 0.12~0.22 -
SUS304J3 - Max.0.08 Max.1.00 Max.2.00 Max.0.045 Max.0.030 8.00~10.50 17.00~19.00 - 1.00~3.00 - -
SUS305 305 Max.0.12 Max.1.00 Max.2.00 Max.0.045 Max.0.030 10.50~13.00 17.00~19.00 - - - -
SUS309S 309S Max.0.08 Max.1.00 Max.2.00 Max.0.045 Max.0.030 12.00~15.00 22.00~24.00 - - - -
SUS310S 310S Max.0.08 Max.1.50 Max.2.00 Max.0.045 Max.0.030 19.00~22.00 24.00~26.00 - - - -
SUS316 316 Max.0.08 Max.1.00 Max.2.00 Max.0.045 Max.0.030 10.00~14.00 16.00~18.00 2.00~3.00 - - -
SUS316L 316L Max.0.03 Max.1.00 Max.2.00 Max.0.045 Max.0.030 12.00~15.00 16.00~18.00 2.00~3.00 - - -
SUS316N 316N Max.0.08 Max.1.00 Max.2.00 Max.0.045 Max.0.030 10.00~14.00 16.00~18.00 2.00~3.00 - 0.10~0.22 -
SUS316LN 316LN Max.0.03 Max.1.00 Max.2.00 Max.0.045 Max.0.030 10.50~14.50 16.50~18.50 2.00~3.00 - 0.12~0.22 -
SUS316Ti - Max.0.08 Max.1.00 Max.2.00 Max.0.045 Max.0.030 10.00~14.00 16.00~18.00 2.00~3.00 - - Ti Min.5xC%
SUS316J1 - Max.0.08 Max.1.00 Max.2.00 Max.0.045 Max.0.030 10.00~14.00 17.00~19.00 1.20~2.75 1.00~2.50 - -
SUS316J1L - Max.0.03 Max.1.00 Max.2.00 Max.0.045 Max.0.030 12.00~16.00 17.00~19.00 1.20~2.75 1.00~2.50 - -
SUS316F - Max.0.08 Max.1.00 Max.2.00 Max.0.045 Min.0.10 10.00~14.00 16.00~18.00 2.00~3.00 - - -
SUS317 317 Max.0.08 Max.1.00 Max.2.00 Max.0.045 Max.0.030 11.00~15.00 18.00~20.00 3.00~4.00 - - -
SUS317L 317L Max.0.03 Max.1.00 Max.2.00 Max.0.045 Max.0.030 11.00~15.00 18.00~20.00 3.00~4.00 - - -
SUS317LN - Max.0.03 Max.1.00 Max.2.00 Max.0.045 Max.0.030 11.00~15.00 18.00~20.00 3.00~4.00 - 0.10~0.22 -
SUS317J1 - Max.0.04 Max.1.00 Max.2.50 Max.0.045 Max.0.030 15.00~17.00 16.00~19.00 4.00~6.00 - - -
SUS836L - Max.0.03 Max.1.00 Max.2.00 Max.0.045 Max.0.030 24.00~26.00 19.00~24.00 5.00~7.00 - Max.0.25 -
SUS890L - Max.0.02 Max.1.00 Max.2.00 Max.0.045 Max.0.030 23.00~28.00 19.00~23.00 4.00~5.00 1.00~2.00 - -
SUS321 321 Max.0.08 Max.1.00 Max.2.00 Max.0.045 Max.0.030 9.00~13.00 17.00~19.00 - - - Ti Min.5xC%
SUS347 347 Max.0.08 Max.1.00 Max.2.00 Max.0.045 Max.0.030 9.00~13.00 17.00~19.00 - - - Nb Min.10xC%
SUSXM7 304Cu Max.0.08 Max.1.00 Max.2.00 Max.0.045 Max.0.030 8.50~10.50 17.00~19.00 - 3.00~4.00 - -
SUSXM15J1 - Max.0.08 3.00~5.00 Max.2.00 Max.0.045 Max.0.030 11.50~15.00 15.00~20.00 - - - -
Precipitation Hardening Grades SUS630 S17400 Max.0.07 Max.1.00 Max.1.00 Max.0.040 Max.0.030 3.00~5.00 15.00~17.50 - 3.00~5.00 - Nb 0.15~0.45
SUS631 S17700 Max.0.09 Max.1.00 Max.1.00 Max.0.040 Max.0.030 6.50~7.75 16.00~18.00 - - - Al 0.75~1.50

Dimensional Tolerances of Stainless Steel Products

Diameter, length or distance to opposing side,
thickness, and width
Tolerance class
class 7
(h7)
class 8
(h8)
class 9
(h9)
class 10
(h10)
class 11
(h11)
class 12
(h12)
class 13
(h13)
class 14
(h14)
class 15
(h15)
class 16
(h16)
class 17
(h17)
class 18
(h18)
less than 3 0
-0.010
0
-0.014
0
-0.025
0
-0.040
0
-0.060
0
-0.10
0
-0.14
0
-0.25
0
-0.40
0
-0.60
0
-1.00
0
-1.40
Over 3, and 6 or less 0
-0.012
0
-0.018
0
-0.030
0
-0.048
0
-0.075
0
-0.12
0
-0.18
0
-0.30
0
-0.48
0
-0.75
0
-1.20
0
-1.80
Over 6, and 10 or less 0
-0.015
0
-0.022
0
-0.036
0
-0.058
0
-0.090
0
-0.15
0
-0.22
0
-0.36
0
-0.58
0
-0.90
0
-1.50
0
-2.20
Over 10, and 18 or less 0
-0.018
0
-0.027
0
-0.043
0
-0.070
0
-0.11
0
-0.18
0
-0.27
0
-0.43
0
-0.70
0
-1.10
0
-1.80
0
-2.70
Over 18, and 30 or less 0
-0.021
0
-0.033
0
-0.052
0
-0.084
0
-0.13
0
-0.21
0
-0.33
0
-0.52
0
-0.84
0
-1.30
0
-2.10
0
-3.30
Over 30, and 50 or less 0
-0.025
0
-0.039
0
-0.062
0
-0.100
0
-0.16
0
-0.25
0
-0.39
0
-0.62
0
-1.00
0
-1.60
0
-2.50
0
-3.90
Over 50, and 80 or less 0
-0.030
0
-0.046
0
-0.074
0
-0.120
0
-0.19
0
-0.30
0
-0.46
0
-0.74
0
-1.20
0
-1.90
0
-3.00
0
-4.60
Over 80, and 120 or less 0
-0.035
0
-0.054
0
-0.087
0
-0.140
0
-0.22
0
-0.35
0
-0.54
0
-0.87
0
-1.40
0
-2.20
0
-3.50
0
-5.40

 

Stainless Steel Price

Stainless Steel Price in India: US $6-20 per Pound

Who We are ?

  • Stainless Steel Suppliers
  • Stainless Steel Distributors
  • Stainless Steel Dealers in Mumbai
  • Stainless Steel Manufacturer in India
  • Stainless Steel Exporters
  • Stainless Steel Stockist
  • Stainless Steel Stock
  • Stainless Steel Suppliers in India

 

Stainless Steel Products We Supply to:

Saudi Arabia, Iran, Iraq, UAE, Middle East, Qatar, Bahrain, Oman, Kuwait, Turkey, Yemen, Syria, Jordan, Cyprus, Nigeria, Algeria, Angola, South Africa, Libya, Egypt, Sudan, Equatorial Guinea, The Republic Of Congo, Gabon, USA, Canada, Mexico, Panama, Costa Rica, Puerto Rica, Trinidad And Tobago, Jamaica, Bahamas, Denmark, North America, Africa, Europe, Russia, Norway, Germany, France, Italy, UK, Spain, Ukraine, Netherland, Belgium, Greece, Czech Republic, Portugal, Hungary, Albania, Austria, Switzerland, Slovakia, Finland, Ireland, Croatia, Slovenia, Malta, Asia, India, Singapore, Malaysia, Indonesia, Thailand, Vietnam, South Korea, Japan, Sri Lanka, Maldives, Bangladesh, Mayanmar, Taiwan, Cambodia, South America, Argentina, Bolivia, Brazil, Chile, Venezuela, Colombia, Ecuador, Guyana, Paraguay, Uruguay