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Austenitic - Ferritic Duplex Grade Stainless Steel Seamless Pipe GB/T21833-2008

Basic Information
Place of Origin: ZHEJIANG, CHINA
Brand Name: TORICH
Certification: ISO9001, ISO14001, TS16949
Model Number: GB/T21833-2008
Minimum Order Quantity: 5Tons
Price: negotiable
Packaging Details: Stainless Steel Pipes are packed in wooden boxes in seaworthy packing.
Delivery Time: 30-45 work days
Payment Terms: L/C, D/A, D/P, T/T, Western Union, MoneyGram
Supply Ability: 5000Tons per Year
Detail Information
Keyword: Austenitic-Ferritic Stainless Pipe Material: S31803, S32750, 254smo, 904L Etc
WT: 1-75mm OD: 8-426mm
Length: 3000mm-12000mm Surface: Polished, Brightly, Anneled
Technique: Hot Rolled (W-H), Cold Drawn (W-C) Usage: For High Pressure Vessel
High Light:

stainless steel round tube

,

large diameter stainless steel tube


Product Description

Products Description
 
TORICH GB/T21833-2008 Austenitic-Ferritic Duplex Grade Stainless Steel Seamless Pipe
Standard
GB/T21833 Austenitic-Ferritic Duplex Grade Stainless Steel Seamless Pipe
Matrial
S31803(2205), S32750(2507), 254smo(31254), 904L
Size
WT: 1mm-75mm OD: 8mm-426mm Length: as customers' requirement
Technique
Hot Rolled (W-H), Cold Drawn (W-C)
Surface Treament
Annealed, Brightly Annealed, Polish
Application
For High pressure vessel, Petroleum exploitation, Chemical industry, Ship building
Test
Tension Test, Flaring Test, Flange Test,
Reverse Test, Hardness Test,
Hydrostatic or Nondestructive Electric Test etc

 

Chemical Composition

Steel Grade
C
max
Mn
max
Si
max
S
max
P
max
Cr
max
Ni
Mo
N           Cu
S32750(SAF2507)
00Cr25Ni7Mo4N
0.03
1.20
0.8
0.020
0.035
24.0/
26.0
6.0/
8.0
3.0/
5.0
0.24/    0.50
0.32
S31803(SAF2205)
00Cr22Ni5Mo3N
0.03
2.00
1.0
0.020
0.030
21.0/
23.0
4.5/
6.5
2.5/
3.5
0.08/
0.20
S31500(3RE60)
00Cr18Ni5Mo3Siz
0.03
1.2/2.00
1.4/2.00
0.030
0.030
18.0/
19.0

 4.25/

5.25 

2.5/
3.0
0.05/
0.10

 

Mechanical Properties

Steel Grade
σb(Mpa)≥
σs(Mpa)≥
δ(%)≥
Hardness
HB
HRC
S32750(SAF2507)
00Cr25Ni7Mo4N
800
550
15
310
32
S31803(SAF2205)
00Cr22Ni5Mo3N
620
450
25
290
30.5
S31500(3RE60)
00Cr18Ni5Mo3Siz
630
440
30
290
30.5

 

Product Show
Austenitic - Ferritic Duplex Grade Stainless Steel Seamless Pipe GB/T21833-2008 0Austenitic - Ferritic Duplex Grade Stainless Steel Seamless Pipe GB/T21833-2008 1

 

QUALITY CONTROL:
1. Incoming Raw Material Inspection
2. Raw Material Segregation to avoid steel grade mix-up
3. Heating and Hammering End for Cold Drawing
4. Cold Drawing and Cold Rolling, on line inspection
5. Heat Treatment, +A, +SRA, +LC, +N, Q+T
6. Straightening-Cutting to specified length-Finished Measuring Inspection
7. Machanical Testing in own labs with Tensile Strength, Yield Strength, Elongation, Hardness, Impact, Mictrostruture etc
8. Packing and Stocking

100% of our steel tubes are dimensionally checked
100% of our steel tubes are visually checked to assure they have a perfect surface condition and no surface defects.
100% eddy current test and ultrosonic test to eliminate longitudinal and transversal defects.

 

PACKING:
Each tube in a plastic bag, then put tubes in a seaworthy woven bag ,each unit weight 400kg-500kg/bundle.
With strong wood structure box packing by containers loading and shipping.
Or as customer's requirement.
20 ft container - GP: 5.8m (Length) * 2.13m (Width) * 2.18m (Hight) ------ Max Gross Weight: 25MT/container.
40 ft container - GP: 11.8m (Length) * 2.13m (Width) * 2.18m (Hight) ------ Max Gross Weight: 27MT/container.
40 ft container - HG: 11.8m (Length) * 2.13m (Width) * 2.72m (Hight) ------ Max Gross Weight: 27MT/container.
Port Shanghai

 
FAQ

Q: Are you trading company or manufacturer ?
A: A professional steel pipes materials inventor, manufacturer and solution provider
Q: How long is your delivery time?
A: Generally it is 7-14 days if the goods are in stock. or it is 30-60 days if the goods are not in stock, it is according to quantity.
Q: Do you provide samples of carbon seamless steel tube ? is it free or extra ?
A: Yes, we could offer the sample for free charge but need pay the cost of freight.
Q: What is your terms of payment ?
A: Payment<=1000USD, 100% in advance. Payment>=1000USD, 30% T/T in advance ,balance before shippment.
If you have another question, pls feel free to contact us

Contact Details
Jasmine Zhang

Phone Number : +8618067598028

WhatsApp : +8613736164628