Home > Products > Stainless Steel Tube > TP304H TP309H TP310S Seamless Weled and Heavily Cold Worked Austenitic Stainless Steel Pipes

Contact Supplier

Mr. Richard SHEN

Leave a message

Contact Now

TP304H TP309H TP310S Seamless Weled and Heavily Cold Worked Austenitic Stainless Steel Pipes

Get Latest Price

Payment Type:

L/C,T/T,D/P,Paypal,Money Gram,Western Union

Incoterm:

FOB,CFR,CIF,FCA,CPT

Min. Order:

1 Metric Ton

Transportation:

Ocean,Land,Air

Port:

ShangHai,NingBo,TianJin

Contact Now

 Chat Now

Product Description

Product Attributes
Supply Ability & Additional Information
Packaging & Delivery

< >

Overview

Product Attributes

Model No.: ASTMA312

Brand: TORICH

Supply Ability & Additional Information

Packaging: In Wooden boxes

Productivity: 50000 Tons/Year

Transportation: Ocean,Land,Air

Place of Origin: China

Supply Ability: 50000 Tons per year

Certificate: ISO 9001-2008 TS16949 ISO 14001 NK RINA

Port: ShangHai,NingBo,TianJin

Payment Type: L/C,T/T,D/P,Paypal,Money Gram,Western Union

Incoterm: FOB,CFR,CIF,FCA,CPT

Packaging & Delivery

Selling Units:: Metric Ton

Package Type:: In Wooden boxes

Size range: O.D.: 10-7620mm W.T.:1-13mm L:1000-12000mm

Applications:  Automobile, Machinery Engineering, Autoparts etc.

Chemical composition(%,max)

ASTMA312 Small Diameter Austenitic Seamless Stainless Steel Tube

Steel Grade	C≤	Mn≤	P≤	S≤	Si≤	Ni	Cr	Mo	N
s31803	0.030	2.0	0.030	0.020	1.0	4.50-6.50	21.0-23.0	2.50-3.50	0.08-0.20
s31500	0.030	1.2-2.0	0.030	0.030	1.40-2.00	4.25-5.25	18.0-19.0	2.50-3.00	0.05-0.10
s31200	0.030	2.0	0.045	0.030	1.0	5.50-6.50	24.0-26.0	1.20-2.00	0.14-0.20
s31260	0.030	1.0	0.030	0.030	0.75	5.50-7.50	24.0-26.0	2.50-3.50	0.10-0.30
s32304	0.030	2.5	0.040	0.040	1.0	3.0-5.5	21.5-24.5	0.05-0.60	0.05-0.20

This guide covers standard specification for seamless, straight-seam welded, and cold worked welded austenitic Stainless Steel Pipe intended for high-temperature and general corrosive service. Several grades of steel shall conform to the required chemical composition for carbon, manganese, phosphorus, sulfur, silicon, chromium, nickel, molybdenum, titanium, columbium, tantalum, nitrogen, vanadium, copper, cerium, boron, aluminum, and others. All pipes shall be furnished in the heat-treated condition in accordance with the required heat treating temperature and cooling/testing requirements. Tensile properties of the material shall conform to the prescribed tensile strength and yield strength. The steel pipe shall undergo mechanical tests such as transverse or longitudinal tension test and flattening test. Grain size determination and weld decay tests shall be performed. Each pipe shall also be subjected to the nondestructive electric test or the hydrostatic test.

1. Scope

1.1 This specification2 covers seamless, straight-seam welded, and heavily cold worked welded austenitic stainless steel pipe intended for high-temperature and general corrosive service.

NOTE 1: When the impact test criterion for a low-temperature service would be 15 ft·lbf [20 J] energy absorption or 15 mils [0.38 mm] lateral expansion, some of the austenitic stainless steel grades covered by this specification are accepted by certain pressure vessel or piping codes without the necessity of making the actual test. For example, Grades TP304, TP304L, and TP347 are accepted by the ASME Pressure Vessel Code, Section VIII Division 1, and by the Chemical Plant and Refinery Piping Code, ANSI B31.3, for service at temperatures as low as −425 °F [−250 °C] without qualification by impact tests. Other AISI stainless steel grades are usually accepted for service temperatures as low as −325 °F [−200 °C] without impact testing. Impact testing may, under certain circumstances, be required. For example, materials with chromium or nickel content outside the AISI ranges, and for material with carbon content exceeding 0.10 %, are required to be impact tested under the rules of ASME Section VIII Division 1 when service temperatures are lower than −50 °F [−45 °C].

1.2 Grades TP304H, TP309H, TP309HCb, TP310H, TP310HCb, TP316H, TP321H, TP347H, and TP348H are modifications of Grades TP304, TP309Cb, TP309S, TP310Cb, TP310S, TP316, TP321, TP347, and TP348, and are intended for service at temperatures where creep and stress rupture properties are important.

1.3 Optional supplementary requirements are provided for pipe where a greater degree of testing is desired. These supplementary requirements call for additional tests to be made and, when desired, it is permitted to specify in the order one or more of these supplementary requirements.

1.4 Table X1.1 lists the standardized dimensions of welded and seamless stainless steel pipe as shown in ANSI B36.19. These dimensions are also applicable to heavily cold worked pipe. Pipe having other dimensions is permitted to be ordered and furnished provided such pipe complies with all other requirements of this specification.

1.5 Grades TP321 and TP321H have lower strength requirements for pipe manufactured by the seamless process in nominal wall thicknesses greater than 3/8 in. [9.5 mm].

1.6 The values stated in either SI units or inch-pound units are to be regarded separately as standard. Within the text, the SI units are shown in brackets. The values stated in each system may not be exact equivalents; therefore, each system shall be used independently of the other. Combining values from the two systems may result in non-conformance with the standard. The inch-pound units shall apply unless the [M" designation of this specification is specified in the order.

Astm A270 Polishing Cold Drawn Food Grade 3