Being one of the most popular stainless steel grades in the market, SA312 tp304 pipes proves to be a versatile material that can be used across various key industries. The reason for alloy grade 304 Stainless Steel 304 Pipes being popular is that it offers good resistance to corrosion in several mediums. This is due to a higher content of chromium used in the alloying of stainless steel pipes 1.4301.

Stainless steel 304 pipe has excellent tensile strength as well as toughness, even when these pipes have been exposed to low temperatures. Stainless steel 304 welded pipe not only exhibits good resistance to atmospheric corrosion, but also to food as well as beverages and many organic and inorganic chemicals. astm a312 tp304 seamless and SS 304 ERW pipe can withstand corrosion to the aforementioned media, even in moderately oxidizing and moderately reducing environments.

304 Stainless Steel Pipe ASTM Standards

ASTM A271 TP 304
ASME SA271 Grade 304
ASTM A312 TP 304
ASME SA312 Grade 304
ASTM A358 TP 304
ASME SA358 Grade 304
ASTM A376 TP 304
ASME SA376 Grade 304
ASTM A409 TP 304
ASME SA409 Grade 304
ASTM A430 TP 304
ASME SA430 Grade 304

ASTM A632 TP 304
ASME SA632 Grade 304
ASTM A778 TP 304
ASME SA778 Grade 304
ASTM A813 TP 304
ASME SA813 Grade 304
ASTM A814 TP 304
ASME SA814 Grade 304
ASTM A826 TP 304
ASME SA826 Grade 304
ASTM A851 TP 304
ASME SA851 Grade 304

Product Details

Roughness Of 304 Stainless Steel Pipe

Surface features	Surface roughness (Ra) value	Examples of processing methods
Clearly visible knife marks	Ra100, Ra50, Ra25	Rough turning, rough planing, rough milling, drilling
Slightly seen knife marks	Ra12.5, Ra6.3, Ra3.2	Fine turning, fine planing, fine milling, rough hinge, rough grinding
No visible processing marks	Ra1.6, Ra0.8, Ra0.4	Fine turning, fine grinding, fine hinge, grinding
Dark glossy surface	Ra0.2, Ra0.1, Ra0.05	Grinding, honing, super-fine grinding, polishing

Aisi 304 Stainless Steel Pipe Tolerance

SS 304 Pipe OD	AISI 304 Seamless Pipe Tolerance
4 to 35mm	+/- 0.08mm
35 to 38mm	+/- 0.15mm
38 to 60mm	+/- 0.20mm
60 and above	+/- 0.25mm

Stainless Steel 304 Pipe Equivalent Grades

Grade	UNS No	Old British		Euronorm		Swedish SS	Japanese JIS	GOST
		BS	En	No	Name
304 Stainless Steel	S30400	304S31	58E	1.4301	X5CrNi18-10	2332	SUS 304	08Х18Н10

304 Stainless Steel Pipe Chemical Composition

Grade		C	Mn	Si	P	S	Cr	Mo	Ni	N
304 Stainless Steel	min.	–	–	–	–	–	18.0	–	8.0	–
304 Stainless Steel	max.	0.08	2.0	0.75	0.045	0.030	20.0	–	10.5	0.10

Mechanical Properties Of 304 Stainless Steel Pipe

Grade	Tensile Strength (MPa) min	Yield Strength 0.2% Proof (MPa) min	Elongation (% in 50mm) min	Hardness
				Rockwell B (HR B) max	Brinell (HB) max
304 Stainless Steel	515	205	40	92	201

304 Stainless Steel Pipes Physical Properties

Grade	Density (kg/m3)	Elastic Modulus (GPa)	Mean Coefficient of Thermal Expansion (m/m/0C)			Thermal Conductivity (W/m.K)		Specific Heat 0-1000C (J/kg.K)	Electrical Resistivity (n.m)
			0-1000C	0-3150C	0-5380C	at 1000C	at 5000C
304 Stainless Steel	8000	193	17.2	17.8	18.4	16.2	21.5	500	720

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