This grade is commonly known as “18-8” stainless steel, as it contains 18% chromium and 8% Nickel. 304 stainless steel is widely used to resists ordinary rusting in most applications. wilsonpipeline offers grade 304, 304L and 304H in virtually all stainless product forms, including stainless steel tube, stainless steel pipes, stainless steel pipe fittings, stainless steel flanges, stainless steel bars and others.
From standard to special finishes, our specialty is to supply 304 flangess and pipes in various finishes including 2B, No.4, BA, Mirror and other with or without protective coating. 304 stainless steel flanges, 304 stainless steel tubes and 304 stainless steel pipes are widely used for architectural applications.
Also, because stainless steel grade 304 has good forming capabilities, it is widely used for deep drawing applications including stainless steel sinks and stainless steel utensils. On demand we can supply to our customers stainless steel 304 quality circles in thickness ranging from 0.15mm up to 2.5mm for manufacturing appliances.
Both stainless steel grades 304L and 304H can be made available in plate and pipe form. We mainly have ready stock of 304L pipes and plates, and 304H is readily available in sheets and plates form. 304H grade stainless steel pipes and 304H gradestainless steel pipe fittings can also be made available on demand.
Grade 304L is widely used by the fabrication industry and all standard welding techniques can be used on 304L plates and 304L pipes. The “L” in 304L stands for “Low Carbon Content”, indicating a maximum carbon content of 0.035%. The “H” in 304H stands for “High Carbon Content”, indicating carbon content of not less than 0.04% and not more than 0.10%.
The tensile and yield strength of 304H stainless steel is greater than 304L, as the higher carbon content increases its strength. Stainless steel 304H grade pipes and plates are widely used for manufacturing boilers, pressure vessels and heat exchangers for fertilizer plants, chemical plants, petroleum refineries, and power generation plants.
Stainless Steel 304, 304L, 304H Specifications
304, 304L, 304H Seamless & Welded Stainless Steel Pipe and Stainless Steel Tubes: ASTM A312, ASTM A213, ASTM A249
304, 304L, 304H Butt-weld Stainless Steel Pipe Fittings & Stainless Steel Flanges: ASTM A403, ASTM A182
304, 304L, 304H Forgings: ASTM A182
Stainless Steel 304 Chemical Composition, %
C
Mn
Si
P
S
Cr
Ni
Fe
0.08 max.
2.00 max.
1.00 max.
0.045 max.
0.03 max.
18.0 – 20.0
8.0 – 10.5
Balance
Stainless Steel 304L Chemical Composition, %
C
Mn
Si
P
S
Cr
Ni
Fe
0.03 max.
2.00 max.
1.00 max.
0.045 max.
0.03 max.
18.0 – 20.0
8.0 – 12.0
Balance
Stainless Steel 304H Chemical Composition, %
C
Mn
Si
P
S
Cr
Ni
Fe
0.04-0.10
2.00 max.
1.00 max.
0.045 max.
0.03 max.
18.0 – 20.0
8.0 – 12.0
Balance
Stainless Steel 304LN Chemical Composition, %
C
Mn
Si
P
S
Cr
Ni
N
Fe
0.03 max.
2.00 max.
1.00 max.
0.045 max.
0.03 max.
18.0 – 20.0
8.0 – 12.0
0.1-0.16
Balance
Physical & Mechanical Properties of Stainless Steel 304, 304L, 304H
304
304L
304H
Density
8.00
8.00
8.00
Melting Range,℃
1400 ℃
1400 ℃
1400 ℃
Elongation %
40
40
40
Tensile Strength (Mpa)
515
485
515
Yield Strength (Mpa)
205
170
205
Hardness (Brinell)
201
201
201
* Technical specifications included herein should be used as a guideline only
Stainless Steel 304, 304L, 304H, 304LN Pipes, Tubes / Tubing, and Butt Weld Fittings
304L/304H/304 stainless steel pipes and stainless steel tubes are available in both seamless and welded form in OD and NB sizes. In addition to standard sizes, which are available in stock, our specialty is to manufacture and supply custom size 304/L/H cold drawn stainless steel seamless tubes from our factory.
304, 304L, 304H stainless steel pipes and stainless steel tubes can be offered in random lengths of up to 6meters long or cut to a specific length as ordered. We also offer a complete range of stainless steel 304 grade butt weld fittings including 304L elbow, 304L bends, 304L tees, reducers and caps.
Stainless Steel 304, 304L, 304H Seamless, Welded Pipe/ Tube, and Fittings DimensionsOut diameterWall thicknessLength304 Pipe NB Sizes1/4 “ ~ 16”SCH 5 / SCH 10 / SCH 40 / SCH 80 / SCH 160Upto 6 Meters304 Butt Weld Fittings NB Sizes1/2″ ~ 12”SCH 5 / SCH 10 / SCH 40 / SCH 80 / SCH 160–304 Seamless Pipes (Custom Sizes)5.0mm ~ 203.2mmAs per requirementUpto 6 Meters304 Welded Pipes (in Stock + Custom Sizes)5.0mm ~ 1219.2mm1.0 ~ 15.0 mmUpto 6 Meters
For more information on this source, please visit wilsonpipeline Pipe Industry Co., Limited.
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