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Annealed / Pickled Stainless Steel Seamless Tube Cold Drawn 316l 304l 904l

Basic Information
Place of Origin: China
Brand Name: Torich
Certification: ISO9001
Model Number: GB13296-1991
Minimum Order Quantity: 1000kg
Price: negotiable
Packaging Details: In bundles in wooden box
Delivery Time: 3-4 weeks
Payment Terms: L/C, D/A, D/P, T/T, Western Union
Supply Ability: 5000tons per year
Detail Information
Standard: GB13296 -1991 Grade: 0Cr18Ni9
Production: Cold Drawn Delivery Condition: Pickled And Annealed
Application: Boiler And Heat Exchanger Type: Straight And U Bend
High Light:

stainless steel round tube

,

large diameter stainless steel tube


Product Description

316L 304L 904L Annealed and Pickled Seamless Stainless Steel Tube

 
Seamless Stainless Steel tubes For Boiler and Heat Exchanger, are made according to the Chinese National Standard GB13296-91.
 
GB13296-91 is a standard applicable for Seamless Stainless Steel pipes which is used for boiler and heat exchanger.
 
GB13296-1991 Seamless Stainless Steel Tubes for Boiler, Heat Exchangers
0Cr18Ni9 1Cr18Ni9Ti 0Cr18Ni12Mo2Ti
 
Technical tandard: GB13296-91
 
Tolerance for seamless stainless boiler tube:

Production MethodSize(mm)Tolerance
Hot Rolling(Extrusion)OD≤140±1.25%
>140±1.0%
WT≤10±12.5%
>10±15%
Cold Drawn(Cold Rolled)OD8~30±0.20mm
>30~50±0.30mm
>50±0.8%
WT1.0~3

+12%

-10%

>3.0

±10%

 
Length:
The length or general steel tube:
Hot Rolling(Extrusion) tube: 3~12 m
Cold Drawn(Cold Rolled) tube: 3~8 m
The length for water pipe & boiler steel pipe:
Hot Rolling(Extrusion) tube: 4~12 m
Cold Drawn(Cold Rolled) tube: 4~8 m

 
Bending tolerance:
WT≤15mm, Bending≤1.5mm/m
WT>15mm, Bending≤2.0mm/m
 
End shape:
Both ends of the pipe should be cut at right angles, and remove burrs
 
Mechanical property
Heat treatment of longitudinal mechanical properties of steel pipe shall according to the standard.

Material

Tensile strength MPa

Yield Strength MPa

Elongation

%

0Cr18Ni952020535
1Cr19Ni952020535
0Cr19Ni1048017535
1Cr18Ni9Ti55020540
0Cr18Ni12Mo2Ti53020535
0Cr26Ni5Mo259039018
1Cr1741024520
00Cr27Mo41024520
1Cr25Ti44024517

 
Hardness:
For the tubes which W.T. ≥2 mm, Rockwell hardness tests should be taken.
 
Tests of the seamless boiler tubes:
1.Bending Test:
The tubes should take the bending test when OD ≤22mm. The bending angle is 90 degrees, and the bending radius is 6 times the outer diameter of the steel tube.
 
2. Hydraulic test;
Eddy current testing, ultrasonic testing can be used instead of hydraulic tests. When eddy current testing, GB/T 7735-1995 Gr. A should be followed; when ultrasonic testing, GB/T 5777-1996 Gr. C8 should be followed.
3. Flattening test
4. Flanging test
5. Expand test
 
 Annealed / Pickled Stainless Steel Seamless Tube Cold Drawn 316l 304l 904l 0Annealed / Pickled Stainless Steel Seamless Tube Cold Drawn 316l 304l 904l 1
 
 Annealed / Pickled Stainless Steel Seamless Tube Cold Drawn 316l 304l 904l 2
What is your Guarantee?
1.SO9001:2008 and TS16949 certification, SGS, BV, TUV or other third party inspection is available.
2.High quality with competitive price.
3.Advanced technology, experienced engineer, ISO quality system for quality assurance and traceability.
Do you have agent or distributor in our country?
1.We are recruiting area agent and distributor all over the world, welcome to send us your mail or call us for detail discussion.
How is your production capability?
1.2000 tons monthly production capacity, 5000 tons monthly trading capability
2.Prompt and Timely shipment
How to get the sample?
1.You are requested to pay for sample charges and courier charges from China to your country; and the free sample is according the product like size, steel grade and quantity, please consult our sales for details
2.Sample charges will be refunded when order is placed.
What is your Payment Term?
1.T/T: 30% deposit in advance, the balance 70% paid before shipment
2.30% down payment, the balance 70% paid against L/C at sight
3.Upon negotiation
Who are your customers?
1.Stockists, Distributors,Wholesalors,Agents, Traders, End Users, etc
How long will you react on our requirement?
1.Your requirement would be treated within 24 hours on weekdays. Quotations would be sent upon technical details confirmed by customer!
Any more questions about your doubts, please feel free to send us your emails or call!
Annealed / Pickled Stainless Steel Seamless Tube Cold Drawn 316l 304l 904l 3

Contact Details
Christine Guan

Phone Number : +8618958207675

WhatsApp : +8613736164628