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Your Location: Home > Pipes > Stainless Steel Pipes > TP347H Austenitic Stainless Steel Seamless Pipe For Heat Exchanger Tube UNS S34709

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TP347H Austenitic Stainless Steel Seamless Pipe For Heat Exchanger Tube UNS S34709

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FOB PriceUSD 800 - 30,000/Piece
PortNingbo or Shanghai
MOQ0.5 Tons
Supply Ability1000 Tons Per Month
Payment TermsL/C,T/T,Western Union
PackagingSeaworthy plywood cases or pallets
Delivery2 - 15 days

Detailed description

Quick Detail:

Name: TP347H Austenitic Stainless Steel Seamless Pipe For Heat Exchanger Tube UNS S34709

Place of Origin:Zhejiang, China (Mainland) Brand Name: Yaang

Shape: Seamless Stainless Steel Pipe Material: stainless steel

Steel Grade: TP347H...

Packaging & Delivery

Packaging Detail:	according to customer's require or export's standard
Delivery Detail:	2 - 15 days after confirmation

Specifications:

347H is controlled, high carbon Nb stabilised stainless steel for elevated temperature service.

Material Grade:

TP347H

Outer Diameter:

6mm - 830mm

Standard:

EN10216 - 5, EN10216 - 2, DIN 17456, DIN 17458,

ASTM A312, A213, A269, A511, A789, A790 ETC,

GOST 9941, JIS G3459

Surface:

Solid Annealed/Pickling/180# 240# 320# 400#

Type:

Stainless Steel Seamless Pipe/Tube

Wall Thickness:

0.6mm - 60mm

General Introduction

S347H is a austenitic chromium steel containing colubium. It is recommended for parts fabricated by welding which cannot be subsequently annealed. This type is also used for parts which are intermittently heated and cooled to temperatures between 800° F and 1600° F. The addition of columbium produces a stabilied type of stainless that eliminates carbide precipitation and, consequently, intergranular corrosion.

Chemical Composition

C	Co	Cr	Mn	Ni	P	S	Si	Ta
Max			Max		Max	Max	Max
0.08	Trace*	17.0 - 20.0	2.0	9.0 - 13.0	0.04	0.30	0.75	Trace*

Designed Features

• Superior general corrosion resistance over Type 321 due to stabilization with columbium.

• Reduced tendencies to form continuous networks of chromium carbides at the grain boundaries.

• Better high temperature properties than 304 or 304L. Generally used for parts which are intermittently heated up to 1500 deg. F. For continuous service the maximum temperature is 1650 deg. F.

• Type 347H has high carbon (.04 - . 10) for better high temperature creep properties. • Improved intergranular corrosion resistance.

Typial Application

***High temperature chemical process, heat exchanger tubes

***Refineries

***High temperature steam service

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