stainless steel pipes and billets

stainless steel pipes are with large diameter and small diameter and the most versatile and most widely used stainless steel.

These properties are specified for flat rolled product (plate, sheet and coil) in ASTM A240/A240M. Similar but not necessarily identical properties are specified for other products such as pipe and bar in their respective specifications.

Composition

Typical compositional ranges for grade 304 stainless steels are given in table 1.

Composition ranges for 304 grade stainless steel

Grade		C	Mn	Si	P	S	Cr	Mo	Ni	N
304	min. Max.	- 0.08	- 2.0	- 0.75	- 0.045	- 0.030	18.0 20.0	-	8.0 10.5	- 0.10
304L	min. Max.	- 0.030	- 2.0	- 0.75	- 0.045	- 0.030	18.0 20.0	-	8.0 12.0	- 0.10
304H	min. Max.	0.04 0.10	- 2.0	- 0.75	-0.045	- 0.030	18.0 20.0	-	8.0 10.5	-

Grade specifications for 304 grade stainless steel

Grade	UNS No	Old British		Euronorm		Swedish SS	Japanese JIS
		BS	En	No	Name
304	S30400	304S31	58E	1.4301	X5CrNi18-10	2332	SUS 304
304L	S30403	304S11	-	1.4306	X2CrNi19-11	2352	SUS 304L
304H	S30409	304S51	-	1.4948	X6CrNi18-11	-	-
These comparisons are approximate only. The list is intended as a comparison of functionally similar materials not as a schedule of contractual equivalents. If exact equivalents are needed original specifications must be consulted.

Applications

Typical applications include:

Food processing equipment, particularly in beer brewing, milk processing & wine making.

·         Kitchen benches, sinks, troughs, equipment and appliances

·         Architectural panelling, railings & trim

·         Chemical containers, including for transport

·         Heat Exchangers

·         Woven or welded screens for mining, quarrying & water filtration

·         Threaded fasteners

·         Springs

stainless steel pipes and billets