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Welded Round Uaustenitic Stainless Steel Tubes For Feed Water Heater

Minimum Order Quantity : 5 tons Price : negotiable
Packaging Details : Stainless Steel Tube Packing: antirust protection, In hexagon bundles, in wooden box Delivery Time : 45-50 work days
Payment Terms : L/C, D/A, D/P, T/T, Western Union, MoneyGram Supply Ability : 300 Tons per Month
Place of Origin: Zhejiang, China (Mainland) Brand Name: TORICH
Certification: ISO9001 Model Number: SA-688/SA-688M

Detail Information

Keyword: Austenitic Stainless Steel Tuebs Standard: SA-688/SA-688M
OD: 15.9-25.4mm WT: ≥0.7mm
Usage: Feedwater Heater Tuebs Shape: Round, U Bend
Material: 304, 304L, 316, 316L, XM-29, 304N, 316N Technique: ERW
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stainless steel round tube

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Product Description

Product Description                                                                         

 

TORICH ASTM SA-688/SA-688M Welded Austenitic Stainless Steel Feedwater Heater Tuebs

heat exchanger stainless steel tubes

Standard SA-688/SA-688M
OD 15.9-25.4MM
WT ≥0.7mm
Length 1-12m or according to customers' actual application
Steel Grade 304, 304L, 316, 316L, XM-29, 304N, 316N
Application Feeduater Heater Tuebs
Technology Cold Rolled Hot Rolled Cold Drawn

 

 

Chemical Requirements

Element Grade TP304 TP304L TP304LN TP316 TP316L TP316LN TP XM-29 TP304N ...

UNS

Designation

S30400 S30403 S30453 S31600 S31603 S31653 S24000 S30451 S31651
C, max   0.08 0.035 0.035 0.08 0.035 0.035 0.060 0.08 0.08
Mn, max 2.00 2.00 2.00 2.00 2.00 2.00 11.50-14.50 2.00 2.00
P, max 0.040 0.040 0.040 0.040 0.040 0.040 0.060 0.040 0.040
S, max 0.035 0.030 0.030 0.030 0.030 0.030 0.030 0.030 0.030
Si, max 0.75 0.75 0.75 0.75 0.75 0.75 1.00 0.75 0.75
Ni 8.00-11.00 8.00-13.00 8.00-13.00 10.00-14.00 10.00-15.00 10.00-15.00 2.25-3.75 8.00-11.0 10.00-14.00
Cr 18.00-20.00 18.00-20.00 18.00-20.00 16.00-18.00 16.00-18.00 16.00-18.00 17.00-19.00 18.0-20.0 16.0-18.0
Mo ... ... ... 2.00-3.00 2.00-3.00 2.00-3.00 ... ... 2.00-3.00
Ni ... ... 0.10-0.16 ... ... 0.10-0.16 0.20-0.40 0.10-0.16 0.10-0.16
Cu ... ... ... ... ... ... ... ... ...

 

Mechanical properties

Grade

304

316

304L

316L

XM-29

304N

316N

304LN

316LN

Tensile Strength, min ksi (Mpa) 75 (515) 70 (485) 100 (690) 80 (550) 75 (515)
Yeild Strength, min ksi (Mpa) 30 (205) 25 (175) 55 (380) 35 (240) 45 (310)
Elongation in 2 in. or 50mm, min, % 35 35 35 35 30
 
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Welded Round Uaustenitic Stainless Steel Tubes For Feed Water Heater 0

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.

 
Welded Round Uaustenitic Stainless Steel Tubes For Feed Water Heater 1 Welded Round Uaustenitic Stainless Steel Tubes For Feed Water Heater 2
 
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Welded Round Uaustenitic Stainless Steel Tubes For Feed Water Heater 3
Welded Round Uaustenitic Stainless Steel Tubes For Feed Water Heater 4
 
 
FAQ                                                                                                   

Q: Are you trading company or manufacturer ?

A: We are factory.

Q: How long is your delivery time?

A: Generally it is 5-10 days if the goods are in stock. or it is 15-20 days if the goods are not in stock, it is according to quantity.

Q: Do you provide samples of honed tube ? is it free or extra ?

A: Yes, we could offer the sample for free charge but do not 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.

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