Stainless Steel Pipes And Tubing
Stainless Steel Pipes And Tubing
Stainless Steel Pipes And Tubing
Stainless Steel Pipes And Tubing

Stainless Steel Pipes And Tubing

What is the difference between 304, 304H and 304L? In fact, according to the content of chromium nickel is 304 stainless steel, the composition is containing 18% chromium (Cr), 8% nickel (Ni), but the main difference is the difference in carbon content.

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Product Introduction

Choosing a good 304 stainless steel pipe can improve the quality of life, JBLsteel summarizes the following criteria for selecting 304 stainless steel pipes:
1. See if it is corrosion resistant and confirm that there is no excessive exudate.
2. It is best for the manufacturer to come up with the data report of the corrosion test, which is more convincing.
3. If it is used for hot water pipes, it is also necessary to consider the thermal conductivity, and the low thermal conductivity has good thermal insulation performance.
4. Whether the strength is enough, the general 304 stainless steel pipe can achieve the strength of withstand the high-speed water impact of 30 meters per second.

Chemical composition (%)

type	C	Mn	P	S	Si	Cr	Ni	N
304	0.08	2.00	0.045	0.030	0.75	18.00-20.00	8.00-10.50	0.10
304L	0.030	2.00	0.045	0.030	0.75	18.00-20.00	8.00-12.00	0.10
304H	0.04-0.10	2.00	0.045	0.030	0.75	18.00-20.00	8.00-10.50

Mechanical properties

type	Tensile strength	Yield strength	50mm elongation	hardness Brinell	hardness Lorsch	Cold bending
304	≥515	≥205	≥40	≥201	≥92
304L	≥485	≥170	≥40	≥201	≥92
304H	≥515	≥205	≥40	≥201	≥92