Payment & Shipping Terms:
stainless steel seamless tubes,
seamless stainless steel pipes
S34700 347H 07Cr18Ni11Tb ASTM A312 Cold Drawn / Cold Rolled Steel Pipe
1. Outer Diameter: 1/4" - 32"
2. Wall thickness:1 mm-80mm
3. Length: 6 metre or as per customer request
347H is controlled, high carbon Nb stablised stainless steel for elevated temperature service.
General introduction: S347H is a austentic chromium steel containing colubium. It is recommended for parts fabricated by welding chich cannot be subsequently annealed. The addition of columbium produces a stablied type of stainless that eliminated carbide precipitation and consequently, intergranular corrosion.
a. Superior general corrosion resistance over type 321 due to stabilization with columbium
b. Reduced tendencies to form contiunuous networks of chromium carbides at the grain boundaries.
c. 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.
d. Type 347H has high carbon (.04-.10) for better high temperature creep properties
e. Improved intergranular corrosion resistance.
Typical Application: High temperature chemical process, heat exchanger tubes, refineries, high temparature steam service.
(2) Process Method: Cold Drawn / Cold Rolled
(3) Surface Finish: Anneal / Pickling
(4) Delivery Time: 30 Days
(5) Our Company has been dedicated to producing stainless steel seamless pipe since 2007, owning complete producing technology and abundant managing experience.
(6) We have advanced NDT equipments for the tests such as Eddy Current test, Ultrasonic tets, Hydraulic test and so on.
(7) We have ISO, PED, ABS, etc certificate, and the Third Party Inspection Certificates such as TUV, BV, Lloyd''s, etc, also can be provided according to customer's requirements.
(8) Wooden case package which is strong and suitable for sea transportation is our main method to pack the pipes. and the economical packing method such as packed in bundles is also welcomed by some customers.
(9) We have complete after-sale service to deal with the problems in time.
(10) All Pipes is manufactured and inspected/ tested to the relevant standards including ASTM, ASME, etc.
(11) Schedule: Sch 5/5S, 10/10S, 20, 30, 40/40S, 60, 80/80S, 100, 120, 140, 160, STD, XS. Length: Max 23 M
(12) Main Steel Type & Grade: (a) Austenitic Steel: TP 304/304L/304H/304N, TP310S, TP 316/316L/316Ti/316H, TP 317/317L, TP321/321H, TP347/347H, 904L. (b) Duplex Steel S32205, S31803, S32750.
Our producing line:
We are a manufacturer and exporter of cold rolled and cold drawn stainless steel pipes . We employ over 180 workers and certified engineers and technicians.
Packaging and Transport:
We wrap the stainless steel products with anti-rust paper and steel rings to prevent damage.
Identification labels are tagged according to standard specification or customer's instructions.
Special packing is available as per customer's requirement.We cooperate with professional shipping company,To ensure the goods arrive at the port of destination.