S304 Tube

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 tube composes mainly of iron, 18-20% chromium, and 8-10.5% nickel, with trace amounts of manganese, silicon, and carbon. It is the most widely used stainless steel tube in the market due to its balanced performance, cost-effectiveness, and versatility. Suitable for both industrial and commercial applications. 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 in a variety of forms, including:

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

ASTM A312 TP304 Stainless Steel Pipe Specifications

Specifications	ASTM A 312/ASME SA 312
Dimensions	ASTM, ASME and API
SS 304 Pipes	1/2″ NB – 16″ NB
ERW 304 Pipes	1/2″ NB – 24″ NB
EFW 304 Pipes	6″ NB – 100″ NB
Size	1/8″NB TO 30″NB IN
Schedule	SCH5, SCH10, SCH20, SCH30, SCH40, STD, SCH60, SCH80, XS, SCH120, SCH140, SCH160, XXS
Type	Seamless / ERW / Welded / Fabricated / LSAW Pipes
Form	Round Pipes, Custom Pipes, Square Pipes, Rectangular Pipe, "U" Shape, Hydraulic Pipes
Length	Single Random, Double Random & Cut Length.
End	Plain End, Beveled End, Treaded

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stainless steel 304 material Chemical Composition

The standard chemical composition of S304 tube (UNS S30400) includes: carbon ≤0.08%, manganese ≤2.00%, phosphorus ≤0.045%, sulfur ≤0.030%, silicon ≤1.00%, chromium 18.0-20.0%, nickel 8.0-11.0%.

ss304 pipe Mechanical Properties

S304 tube has a minimum yield strength of 30 ksi, minimum tensile strength of 75 ksi, elongation of at least 35%, and maximum hardness of 90 HRB. It maintains good toughness even at cryogenic temperatures and can withstand high temperatures up to 870°C (1600°F).

uns s30400 tube Cost-Effective & Durable

Compared to 316 stainless steel tube, S304 tube offers a better balance of performance and price, making it the most cost-effective choice for general-purpose applications. Its high mechanical strength and corrosion resistance ensure long service life, even in harsh industrial conditions, reducing long-term operational costs.