SS 304 / SS 304L Pipe & Tubing

These kinds of steel are many of the most frequently specified or have come to symbolize the embodiment of the standard stainless steel product. They may be an important part of the 300 Series of steels ( as described in SAE requirements ) which deals with a range of austenitic chromium-nickel alloys . Also they are referred to as 18/8 stainless steel because of their element composition which include approximately 18% chromium and also 8% nickel by weight. The steels are simple to form, weld , and also manufacture and their resistance to rust from , among other items , acids normally contained in food have resulted into them put into use widely in the food and also drink processing industries .
Type 304 and then Type 304L have identical chemical and also mechanised properties and are usually mixed on a single material check certificate while the real properties of a stainless-steel plate met the criteria of both types. This is certainly a very popular occurrence. Type 304L is a variation of Type 304 and also have a low carbon content which enhances weldability and reduces the risk of lowered corrosion resistance around the weld. Type 304L also offers a little reduced yield and tensile energy than Type 304.

Standards – SS 304 / SS 304L Pipe & Tubing

Standard Specification for Seamless Ferritic and Austenitic Alloy-Steel Boiler, Superheater, and Heat-Exchanger TubesASTM A 213
Standard Specification for Welded Austenitic Steel Boiler, Superheater, Heat-Exchanger, and Condenser TubesASTM A 249
Standard Specification for Seamless and Welded Austenitic Stainless Steel Tubing for General ServiceASTM A 269
Standard Specification for Seamless, Welded, and Heavily Cold Worked Austenitic Stainless Steel PipesASTM A 312
Standard Specification for Electric-Fusion-Welded Austenitic Chromium-Nickel Stainless Steel Pipe for High-Temperature Service and General ApplicationsASTM A 358
Standard Specification for Welded Large Diameter Austenitic Steel Pipe for Corrosive or High-Temperature ServiceASTM A 409

Mechanical Properties – Stainless Steel 304 / 304L Tubing & Pipe

Tensile Strength : Unit – ksi (MPa) , Minimum
Yeild Strength : 0.2 % Offset , Unit – ksi (MPa) , Minimum
Elongation : in 2″, Unit : % , MinimumValues as per ASTM A 213

Condition & GradeTensile StrengthYeild StrengthElognationHardness
Annealed TP 30475 (515) 30 (205)3590 HRB max
Annealed TP 304L70 (485) 25 (170)3590 HRB max
Annealed TP 304H75 (515) 30 (205)3590 HRB max

Heat Exchangers

Welded Pipe

304 Stainless Steel Pipe

Stocking & Supplying Seamless & Welded Pipes as small as 1/4″ NB and 24″ NB. Thickness ranging from Sch 5,Sch 10,Sch 40,Sch XS,Sch 80,Sch 160, Sch XXS.

Square Tubing

304 Stainless Steel Square Tubing

Stocking & Supplying Square Tubing including sizes 15mm x 15mm , 20mm x 20mm , 50mm x 50mm,etc.

Tube / Tubing

304 Stainless Steel Tube / Tubing

Stocking & Supplying Seamless & Welded Tubes / Tubing from 6mm OD to 101.6mm OD. Thickness ranging from 0.8mm to 6mm.

Rectangle Tubing

304 Stainless Steel Rectangle Tubing

Stocking & Supplying rectangle tubing including sizes 25mm x 50mm , 50mm x 100mm , etc.

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