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Stainless Steel Grades

stainless steel grades and applications

Texas Alloys offers various grades of stainless steel to include: 304/304L, 316/316L, Alloy 20, 303, 310, 416, 440, 630 and 17-4.

Determining which stainless steel grade to use for your application can be difficult if you are not familiar with the different properties - Please feel free to view the chart below to see what the main properties of the different grades are.

Still not sure? Not a problem, feel free to call us at 800.687.3544 and we'll be happy to answer all of your questions. Texas Alloys & Tool is the source for all your stainless steel and tubing supply essentials in the greater Fort Worth/Dallas area and throughout Texas.

Characteristics of Common Stainless Steel Grades

Grade
Characteristics
304/304LQuote »
  • 304L refers to the low carbon version of 304
  • Austenitic stainless steel
  • Most common grade of stainless steel used
  • Versatile forming and welding
  • Corrosion resistant (stress corrosion cracking above 60°C)
  • High resistance to heat (up to 870°C)
  • Used for applications such as: railings, kitchen appliances, springs, threaded fasteners
  • Widely used in the industrial and transportation fields as well

Available Products

Round Bar Flat Bar Square Bar Hex Bar Angle Channel Beam Sheet Plate Diamond Tread Plate Expanded Metal Tube Pipe Pipe Fittings
316/316LQuote »
  • More corrosion resistant than 304 (stress corrosion cracking above 60°C)
  • 316L is the low carbon version of 316 – immune to sensitization
  • Austenitic stainless steel
  • Exceptional welding and forming characteristics
  • Widely used for heavy gauge welded components
  • Applied in many applications to include: laboratory equipment, springs, railings, fasteners
  • Heat resistant up to 870°C

Available Products

Round Bar Flat Bar Square Bar Hex Bar Angle Channel Beam Sheet Plate Diamond Tread Plate Expanded Metal Tube Pipe Pipe Fittings
  • Austenitic stainless steel
  • Not as corrosion resistant as 304, due to its sulfur properties
  • Ability to withstand mild corrosive environments
  • Heat resistant up to 760°C
  • Weak welding and forming abilities compared to 304
  • Known for its machinability
  • Applications include: gears, nuts & bolts, electrical components, aerospace industry, etc.

Available Products

Round Bar Flat Bar Square Bar Hex Bar
17-4/630Quote »
  • 17-4PH is sometimes referred to the 630 grade
  • Similar properties to 304 – in corrosion and heat resistance
  • Martensitic stainless steel
  • Excellent corrosion and heat resistance
  • Used to make valves and gears
  • Difficult to form, unless heat treated
  • Typically used in the following industries: chemical, metalworking, aerospace and food processing

Available Products

Round Bar
  • Also known for its machinability (highest of all stainless steel grades)
  • Moderate resistance to corrosive environments
  • Heat resistant up to 760°C
  • Low welding properties (welding is discouraged with this grade)
  • Uses include: valves, pumps, gears, nuts & bolts, etc.

Available Products

Round Bar
  • 440A, 440B, 440C grades (varying carbon contents)
  • 440C is the strongest and most resistant out of all of the stainless alloys (after heat treatment)
  • 440A is the most rust resistant out of the 3
  • Widely used in the industrial field for ball bearings and valves (another common application is knives)

Available Products

Round Bar
  • Preferred for use in high temperature environments
  • High corrosion resistant
  • Heat resistant up to 1040°C
  • Good welding and ductility properties
  • Common applications include: furnace and oil burning parts, heat treatment and exchangers, etc.
  • Austenitic stainless steel

Available Products

Sheet Plate
Alloy 20Quote »
  • Austenitic stainless steel alloy (nickel-iron-chromium based)
  • Used to solve the problems of stress cracking corrosion that can be found in 304 and 316
  • Resistant to sulfuric acid
  • Used for a variety of applications such as: tanks, valves, food production and numerous industrial applications

Available Products

Pipe Pipe Fittings

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