stainless steel 304H S30409 tubes pipes EN 10216-5 1.4948 Stainless Steel Tubing piping

stainless steel 304H S30409 tubes pipes EN 10216-5 1.4948 Stainless Steel Tubing piping

Key words

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Introduce of tinsi-steel

Wenzhou TINSI Stainless Steel Co., Ltd is one of the leaders manufacturer & stockist & exporters in stainless steel Pipes &Tubes.our team professional more than 20 years focus on manufacturing stainless steel tubes&pipes and Duplex steel tubes&pipes and Nickel alloy steel tubes&pipes in industrial pipes, precision pipes, sanitary pipes, capillary and needle pipe.

Our company and warehouse in Wenzhou，factory of industrial pipes moved to Songyang,in the stainless steel pipes&tubes that production and sell all control by self,Advanced technology and excellent quality with more than 1200 tons ready stock of industry pipes,offer best price with best services has made TINSI company a true performer in the market domestic.

in 2019，we start foreign business and believe keep always competitiveness that TINSI company will be a reliable partner for worldwide clients.In this new beginning, relying on the advantages of Wenzhou Stainless Steel Base, we also supplies various of stainless steel rods, plates, elbow tees, fittings, flanges, valves and other equipment supporting products for service better and convenient client.

General Properties
Chemical Composition
Resistance to Corrosion
Heat Resistance
Physical Properties
Mechanical Properties
Welding
Heat Treatment

Introduce of

ASTM A213 ASME SA 213 304H Stainless Steel Pipe, EN 10216-5 1.4948 stainless steel is a variation of the 18% chromium – 8% nickel austenitic Alloy 304, in which the carbon content is controlled to a range of 0.04% - 0.1% (ASME SA213) to provide improved high temperature strength to parts exposed to temperatures above 1500°F (815°C).
Unlike 304L, Type 304H has a higher carbon content making the steel more suitable for use in applications where elevated temperatures are present. It is an austenitic chromium-nickel steel alloy and the greater carbon content delivers an increased tensile strength and yield strength. The material is recommended for use in ASME pressure vessel in working service above 815 °C due to the grade's heat resistant properties.
The higher carbon content of 304H increases its strength, so the ASTM tensile strength and yield strength of 304H is greater than 304L. 304H has greater short term and long term creep strength than 304L at temperature up to 500 degrees C, and 304H is more resistant to sensitization than 304L. In ASME pressure vessel for use above 815 °C, the carbon content of 304 must be 0.04% - 0.1%. 304H is required in such applications.
Alloy 304H is most commonly used in petroleum refineries. It is also in Stainless Steel Reheater Tubes and Superheater Tubes for Boiler, heat exchanger, condensers, pipelines, cooling towers, steam exhausts, and electric generation plants. It will also be found in fertilizer and chemical plants.

Table1. Composition ranges for ASME SA 213 304 304L 304H and EN 10216-5 1.4301 1.4307 1.4948

Table2.Grade specifications for 304/304L/304H grade stainless steel

Benefits of using 304H Stainless Steel Tube

Higher carbon content gives the material greater heat resistant qualities

Higher tensile strength and yield strength

Greater short and long term creep strength

304H Stainless Steel Pipe Applications

304H Stainless Steel Pipe is commonly found in the oil refining, gas and chemical industry and is used in industrial boilers, pressure vessels, heat exchanger, pipelines and condensers. The material is also used throughout the power generation industry. Alloy 304H is often used as a material of construction up to about 1500oF. Some examples of applications that Alloy 304H is commonly used for includes:

Most commonly useed in petroleum refineries

Stainless Steel Reheater Tubes and Superheater Tubes for Boiler

Heat exchanger

Condensers

Pipelines

Cooling towers

Steam exhausts

Electric generation plants

On occasion will be found in fertilizer and chemical plants

304H Stainless Steel Pipe Standards – ASTM A213/A269/A312 TP304H

ASTM/ASME: UNS S30409

EURONORM: FeMi35Cr20Cu4Mo2

DIN: 1.4948
304H Stainless Steel ASTM Standards

304H Stainless Steel Tube Chemical Composition

304H Pipes&tubes Mechanical Properties (Tested By TINSI-STEEL According to ASME SA213, OD50.8mm, WT 2.11mm)

304H Stainless Steel Tube Physical properties in the annealed condition