  +86 13812027444       lee@hongguansteel.com
347H Stainless Steel Square Pipe/Tube
Home » Products(1) » Stainless steel products » Stainless Steel Pipe/Tube » Stainless Steel Square Tube » 347H Stainless Steel Square Pipe/Tube

Product Category

Leave a Message
Get Relpy Now


347H Stainless Steel Square Pipe/Tube

Material Grade: 347H
Type: Ferritic, Austenite, Martensite, Duplex
Technology: Cold Rolled and Hot Rolled
Size: According to the customer's requests
Certifications: ISO 9001,SGS,BV
Payment: TT, LC, Western Union.
Service: Third party testing
Delivery: Within 7-15 days or considering the quantity
  • As customers' demands

  • Hongguan

347H Stainless Steel Square Pipe/Tube Manufacturer

347H is another stainless steel that belongs to the class of precipitation hardening steels labeled metal. It has many of the same properties and characteristics as stainless steel 347. In addition to its higher carbon content, the alloy is stabilized with the addition of niobium, or sometimes tantalum. These two properties allow 347H to be exposed to higher temperatures than 347 and 304 stainless steel grades can withstand. Because of its higher resistance to corrosion, 347H is often used in high stress, high corrosion environments where exposure is often severe. High temperature fabrication, steam tubing, boiler tubing, chemical processes and steam service all benefit from the resilience of 347H. This resilience is in turn due to the potentially high chromium content of 347H's composition. This metal can contain anywhere from 4-30%.

This metal shows high machinability with most common welding techniques. It can be heated and processed, however, it will not react. Only cold working is sufficient to improve the toughness and strength of 347H.

347H Stainless Steel Square Pipe/Tube Description

Product Name

347H Stainless Steel Square Pipe


Round tubes, Square tubes, rectangular tubes


As required

Outer diameter

Round tube: 8mm to 680 mm

Square tube: 10x10mm to 300x300mm

Rectangular tube: 10x20mm to 120x180mm


Hot   rolled / cold rolled



Surface   Treatment



201,   202, 301, 302, 303, 304, 304L, 304H, 310S, 316, 316L, 317L, 321,310S 309S,   410, 410S,420, 430, 431, 440A,904L


Decoration,   Construction, Upholstery, Water supplying, handrail, railing, staircase,   door, window, balcony, fence, bench, furniture etc

Shipment time

Within 7-15   workdays after receiving deposit or L/C

Export packing

Standard Export Seaworthy Package.Suit for all kinds of   transport,or as require

347H Stainless Steel Square Pipe Surface

347H stainless steel pipe surface

347H Stainless Steel Tube Square Production

stainless steel square production (1)

About US

Honggang steel is an ISO certified China 347H stainless square steel pipe exporter. Our 347H stainless steel square pipe/tube is tested to international standards and specifications by DIN, JIS, EN, ASTM, etc. As a distributor and dealer of 347H stainless steel square tubes in your country/region, we are a trustworthy supplier. We have a large inventory in Asia, GCC, Gulf, the Middle East, UK, supplying more than 38 countries, and we provide various services as follows.

  1. Support third-party inspection

  2. Customized processing stainless steel one-stop sourcing

  3. Provide free samples

  4. Provide a full range of stainless steel customization

  5. 24 hours online, able to reply on time

Thank you for visiting Honggang steel. Please send us an email to start our first cooperation. For more details of each item, please contact our sales for information.


stainless steel Certificates (1)

347H Stainless Steel Square Tube Chemical Composition

Ni9   – 13
Cr17   – 19
C0.04   – 0.10
Mo3   – 4
Mn2   max
Si0.75   max
S0.03   max
P0.045   max
Co + Ta8xC   min
1.00 max

The chemical composition and mechanical properties provided are general approximations. Please contact our customer service department for material test reports.

347H Stainless Steel Square Tube Mechanical Properties

GradeTensile   Strength (MPa) minYield   Strength 0.2% Proof (MPa) minElongation   (% in 50mm) minHardness
Rockwell B (HR B) maxBrinell   (HB) max

The chemical composition and mechanical properties provided are general approximations. Please contact our customer service department for material test reports.

Product Inquiry

Quick Links

Email: lee@hongguansteel.com
Tell: 0086-13812027444
WhatsApp: 0086-13812027444
Address: Room 413, Building No.7, A4, Huarun Landmark Plaza, Maoling Mountain Road No.2, Lixia District, the City of Jinan
Copyright © 2021 Shandong Hongguan Steel Group Co., Ltd. All Rights Reserved.Support By Leadong.