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GB13296 -1991 High Pressure Precision Steel Tube For Boiler / Heat Exchangers
GB13296 -1991 High Pressure Precision Steel Tube For Boiler / Heat Exchangers
Specifications
Brand Name :
Torich
Model Number :
GB13296 -1991
Certification :
ISO 9001 TS16949 ISO14001
Place of Origin :
China
MOQ :
1ton
Price :
2000-3000USD
Payment Terms :
L/C, T/T
Supply Ability :
50000tons per year
Delivery Time :
30-60days
Packaging Details :
In wooden boxes packaging
Standard :
GB13296-91
Application :
Boiler and Exchanger
Technique :
Cold Drawn
Thickness :
0.6 - 50.0 mm
Alloy or not :
Is Alloy
Section shape :
Round
Secondary or not :
Non-secondary
Outer diameter(round) :
6 - 219 mm
Description

Seamless stainless steel tubes for boiler and heat exchanger

Seamless Stainless Steel tubes For Boiler and Heat Exchanger, 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

Standard: GB13296-91

Tolerance for seamless stainless boiler tube:

Production Method Size(mm) Tolerance
Hot Rolling(Extrusion) OD ≤140 ±1.25%
＞140 ±1.0%
WT ≤10 ±12.5%
＞10 ±15%
Cold Drawn(Cold Rolled) OD 8~30 ±0.20mm
＞30~50 ±0.30mm
＞50 ±0.8%
WT 1.0~3

+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

%

≥
0Cr18Ni9 520 205 35
1Cr19Ni9 520 205 35
0Cr19Ni10 480 175 35
1Cr18Ni9Ti 550 205 40
0Cr18Ni12Mo2Ti 530 205 35
0Cr26Ni5Mo2 590 390 18
1Cr17 410 245 20
00Cr27Mo 410 245 20
1Cr25Ti 440 245 17

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

GB13296 -1991 High Pressure Precision Steel Tube For Boiler / Heat Exchangers GB13296 -1991 High Pressure Precision Steel Tube For Boiler / Heat Exchangers

Product tags

medium pressure boiler steel tubes

,

high pressure boiler tube

,

heat exchanger steel tube
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GB13296 -1991 High Pressure Precision Steel Tube For Boiler / Heat Exchangers

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Product Detail
Brand Name :
Torich
Model Number :
GB13296 -1991
Certification :
ISO 9001 TS16949 ISO14001
Place of Origin :
China
MOQ :
1ton
Price :
2000-3000USD
Contact Supplier
GB13296 -1991 High Pressure Precision Steel Tube For Boiler / Heat Exchangers

Torich International Limited

Site Member
9 Years
zhejiang
Since 2008
Business Type :
Manufacturer, Importer, Exporter, Trading Company, Seller
Main Products :
Precision Seamless Steel Tubes, DOM Steel Tubes, Welded Precision Steel Tubes
Total Annual :
15000000-20000000
Employee Number :
100~200
Certification Level :
Site Member
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