Shandong Jialu International Trade Co., Ltd

Shandong Jialu International Trade Co., Ltd

ASTM A312 TP 304 Seamless Stainless Steel Pipe

ASTM A312 TP 304 Seamless Stainless Steel Pipe is an austenitic stainless steel pipe widely used in chemical, petroleum, natural gas, food and pharmaceutical industries.

The dimensions and tolerances of ASTM A312 TP 304 seamless stainless steel pipes meet the requirements of ASTM standards. Common dimensions include:
Outside Diameter: from 1/8 inch to 12 inches
Wall Thickness: Depending on the required pressure level and pipe diameter, the wall thickness ranges from standard thickness to extra thickness
Length: Usually single random length (SRL, 16-25 feet) or double random length (DRL, 35-40 feet), and can also be customized according to customer requirements

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ASTM A312 TP 304 Seamless Stainless Steel Pipe Description

ASTM A312 standard specifies austenitic stainless steel seamless and welded steel pipes for high temperature and high pressure services. TP 304 is an austenitic stainless steel containing nickel and chromium, with excellent corrosion resistance, good mechanical properties and weldability.
Standard: ASTM A312, ASME SA312. This is a general standard for stainless steel pipe products, covering pipes of different diameters and wall thicknesses.
Material: TP304, a common stainless steel material, mainly composed of elements such as chromium (Cr) and nickel (Ni), with good corrosion resistance and mechanical properties.

ASTM A312 TP 304 Seamless Stainless Steel Pipe Technical

The chemical composition of ASTM A312 TP 304 stainless steel is as follows:
Carbon (C): maximum content of 0.08%
Manganese (Mn): maximum content of 2.00%
Phosphorus (P): maximum content of 0.045%
Sulfur (S): maximum content of 0.030%
Silicon (Si): maximum content of 0.75%
Nickel (Ni): 8.0%-10.5%
Chromium (Cr): 18.0%-20.0%
The mechanical properties of ASTM A312 TP 304 seamless stainless steel pipe are as follows:
Minimum yield strength (Yield Strength): 30,000 psi (about 205 MPa)
Minimum tensile strength (Tensile Strength): 75,000 psi (about 515 MPa)
Elongation: 35% or more
Hardness: Brinell hardness (HBW) up to 201, Rockwell hardness (HRB) up to 92, Vickers hardness (HV) up to 210

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ASTM A312 TP 304 Seamless Stainless Steel Pipe Applications

ASTM A312 TP 304 seamless stainless steel pipes are widely used in the following fields:
Chemical and petrochemical industries: for conveying corrosive chemicals
Oil and gas industries: for conveying fluids containing sulfides and chlorides
Food and beverage industries: for processing and conveying food and beverages
Pharmaceutical industries: for conveying fluids in sterile and clean environments
Marine engineering: for equipment and pipelines that resist seawater corrosion
Nuclear and power industries: for conveying fluids in high temperature and high pressure environments

ASTM A312 TP 304 Seamless Stainless Steel Pipe Manufacturing Process and Heat Treatment

ASTM A312 TP 304 seamless stainless steel pipe adopts seamless manufacturing process, manufactured by hot rolling or cold rolling method without welds. This manufacturing process ensures the overall strength and pressure resistance of the steel pipe, suitable for applications in high pressure and corrosive environments.
ASTM A312 TP 304 seamless stainless steel pipe is usually solution treated to ensure the best corrosion resistance and mechanical properties:
Solution treatment: The steel is heated to 1040-1120°C and then cooled rapidly to maintain the austenite structure and improve the toughness and corrosion resistance of the material.

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