S304 Stainless Steel Tubing

1. Standard: ASTM A312、ASME SA312
2. Size: 1/8''~30''NB
3. Thickness: SCH5~SCHXXS
4. End: Beveled End, Plain End

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Product Introduction

S304 stainless steel tubing is a core product of austenitic stainless steel, manufactured according to international standards such as ASTM A249/A312. It contains 18% chromium and 8% nickel as its core components, possessing excellent corrosion resistance, heat resistance, and mechanical properties. HT PIPE is a astm a269 tp304 Pipe supplier with 15+ export experience. Contact us for more information and quotes for free!

We offers S304 stainless steel in a variety of forms, including:

Bar
Wire
Sheet
Plate
Forgings
Pipe fittings
Flanges
Seamless & Welded pipe
Seamless Tube & Welded tube
Weld Rod

ss304 tubing Core Product Parameters

Material: S304 (06Cr19Ni10), material test reports (MTC) are available, complying with international certification standards such as EU CE, US FDA, and Japanese JIS.

Specification Range: Outer diameter 6mm-630mm, wall thickness 0.8mm-20mm, customizable lengths of 6m, 12m, or cut to order. Available in seamless and welded types to meet different installation requirements.

Surface Treatment: Pickling and passivation, polishing (2B, BA finish), brushed finish. Surface precision can be customized according to customer requirements, suitable for high-standard applications such as food and medical industries.

uns s30400 pipe Core Advantages

Corrosion Resistance: Resistant to corrosion from atmosphere, fresh water, and weak acid and alkali media, preventing oxidation and rust. Suitable for complex environments such as outdoor applications and chemical fluid transportation, reducing maintenance costs.

Mechanical Properties: Tensile strength ≥515MPa, yield strength ≥205MPa, excellent ductility, allowing for bending, stamping, welding, and other processing, suitable for various engineering customization needs.

Environmental Compliance: Complies with RoHS environmental standards, free from harmful impurities, and can be used in sanitary applications such as food processing, drinking water transportation, and medical equipment.

Application of s304 steel pipe

Oil and gas: submarine pipelines, downhole tools for acid gas wells.

Chemical equipment: sulfuric acid reactors, phosphoric acid evaporators, pickling equipment.

Nuclear industry: containers and pipelines for nuclear waste treatment systems.

Marine engineering: seawater desalination devices, heat exchangers.

Environmental protection: key components of flue gas desulfurization (FGD) systems.

ASME B36.19：S304 Stainless Steel Pipe Size(in)

Nominal Pipe Size		OD(mm) outside diameter	Sch5S (in)	Sch10S (in)	Sch40S (in)	Sch80S (in)	Sch160S (in)
DN	NPS	OD(mm) outside diameter	Sch5S (in)	Sch10S (in)	Sch40S (in)	Sch80S (in)	Sch160S (in)
6	1/8	10.3		0.049	0.068	0.095	0.124
8	1/4	13.7		0.065	0.088	0.119	0.145
10	3/8	17.1		0.065	0.091	0.126	0.158
15	1/2	21.3	0.065	0.083	0.109	0.147	0.188
20	3/4	26.7	0.065	0.083	0.113	0.154	0.219
25	1	33.4	0.065	0.109	0.133	0.179	0.250
32	1 1/4	42.2	0.065	0.109	0.140	0.191	0.250
40	1 1/2	48.3	0.065	0.109	0.145	0.200	0.281
50	2	60.3	0.065	0.109	0.154	0.218	0.344
65	2 1/2	73	0.083	0.120	0.203	0.276	0.375
80	3	88.9	0.083	0.120	0.216	0.300	0.438
90	3 1/2	101.6	0.083	0.120	0.226	0.318
100	4	114.3	0.083	0.120	0.237	0.337	0.531
125	5	141.3	0.109	0.13	0.258	0.375	0.625
150	6	168.3	0.109	0.13	0.280	0.432	0.719
200	8	219.1	0.109	0.148	0.322	0.500
250	10	273.1	0.13	0.165	0.365	0.500
300	12	323.9	0.156	0.18	0.375	0.500
350	14	355.6	0.156	0.188	0.375	0.500
400	16	406.4	0.165	0.188	0.375	0.500
450	18	457	0.165	0.188	0.375	0.500
500	20	508	0.188	0.218	0.375	0.500
550	22	559	0.188	0.218
600	24	610	0.218	0.250	0.375	0.5
650	26	660
700	28	711
750	30	762	0.25	0.312