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  • Torich International Co.,Ltd--The Steel Tube Maker

  •  [Zhejiang,China]
  • Business Type:Distributor/Wholesaler , Manufacturer , Service , Trade Company
  • Main Mark: Africa , Americas , Asia , Caribbean , East Europe , Europe , Middle East , North Europe , Oceania , Other Markets , West Europe , Worldwide
  • Exporter:31% - 40%
  • Certs:GB, ISO9001, ISO14001
  • Description:Precision Steel Tube,Boiler / Heat Exchangers,GB13296-1991
Torich International Co.,Ltd--The Steel Tube Maker Precision Steel Tube,Boiler / Heat Exchangers,GB13296-1991
Home > Products > Precision Steel Tube > High Pressure Precision Steel Tube For Boiler / Heat Exchangers

High Pressure Precision Steel Tube For Boiler / Heat Exchangers

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    Payment Type: L/C,T/T
    Incoterm: FOB,CIF
    Delivery Time: 28 Days

Basic Info

Model No.: GB13296-1991

Type: Seamless

Application: Oil Pipe

Section Shape: Round

Surface Treatment: Oiled

Usage: Machinery Industry

Technique: Cold Drawn

Material: Stainless Steel

Additional Info

Packaging: in wooden box

Productivity: 500Ton

Brand: Torich

Transportation: Ocean

Place of Origin: Ningbo

Certificate: ISO9001

Port: Shanghai,Ningbo

Product 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.

China Precision Steel Tube leading supplier, choose the high quality Hydraulic Precision Steel Tube, Precision Carbon Steel Tube, Precision Seamless Steel Tube, CDS Steel Tube, CDW Steel Tube

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.

Looking for ideal Precision Steel Tube Manufacturer & supplier ? We have a wide selection at great prices to help you get creative. All the Boiler / Heat Exchangers are quality guaranteed. We are China Origin Factory of GB13296-1991. If you have any question, please feel free to contact us.

Product Categories : Precision Steel Tube

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  • High Pressure Precision Steel Tube For Boiler / Heat Exchangers
  • High Pressure Precision Steel Tube For Boiler / Heat Exchangers
  • High Pressure Precision Steel Tube For Boiler / Heat Exchangers
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