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  • AISI 347/347H, TP347/347H,1.4550,1.4961
AISI 347/347H, TP347/347H,1.4550,1.4961

AISI 347/347H, TP347/347H,1.4550,1.4961

AISI 347, TP347
AISI 347H, TP347H
UNS 34700, UNS34709
1.4550, 1.4961

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Type: Stainless Steel Seamless Pipe / Tube Material Grade: TP347H
Standard: EN10216-5,EN10216-2,DIN 17456,DIN 17458,ASTM A312, A213,A269,A511,A789, A790 ETC,GOST 9941,JIS G3459 Outer Diameter: 6mm-830mm
Wall Thickness: 0.6mm-60mm Surface: Solid Annealed / Pickling / 180# 240# 320# 400#
 

Specifications

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

TP347H Austenitic Stainless Steel Seamless Pipe/Tube , Heat Exchanger Tube UNS S34709 1.4961

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

PACKING:

By Bundle

By Wooden Yoke

By Wooden Case

TP347H Austenitic Stainless Steel Seamless Pipe , Heat Exchanger Tube UNS S34709 1.4961

TP347H Austenitic Stainless Steel Seamless Pipe , Heat Exchanger Tube UNS S34709 1.4961

TP347H Austenitic Stainless Steel Seamless Pipe , Heat Exchanger Tube UNS S34709 1.4961


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APPLICATIONS FIELD :

1. Pipe and Tubes for petrochemical industry
2. Pharmaceutical industry
3. Food industry
4. Aviation and aerospace industry
5. Architectural decoration industry

 

Tag: ss seamless pipe, ss seamless tube, ss seamless tubing


We Export Stainless Steel Seamless Pipe to : Saudi Arabia, Qatar, Oman, Iran, Iraq, Bahrain, Kuwait, United Arab Emirates, Dubai, Turkey, Egypt, Yemen, Israel, Jordan United Kingdom, United States of America, Mexico, Brazil, Chile, Argentina, Spain, Germany, Netherland, Italy, Europe, Albania, Ukraine, Russia, Japan, China, Sri Lanka, Pakistan, Bangladesh, Nepal, Bhutan, Maldives, Singapore, Malaysia, Thailand, South Korea, Vietnam, Indonesia, Australia, New Zealand, Alaska, Tehran, Riyadh, Jubail, Dammam, Jeddah, Houston, Doha, Musqat, Karachi, Colombo, Jakarta, Bangkok, Basra, Abadan, Bandar Abbas, Sharjah, Morocco, Istanbul, Kobhar, Mecca, Madina, Al Madina, Makkah, Mesaieed, Dukhan, Ras Laffan, Sohar, Manama, Aqaba, Port of Aden, Shuwaikh, Yanbu, Jubail




 
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