Company Details
  • 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:GB/T24593 Boiler and Heat-exchanger Pipes,GB/T24593 Stainless Steel Pipes,Welded Austenitic Steel Pipes
Torich International Co.,Ltd--The Steel Tube Maker GB/T24593 Boiler and Heat-exchanger Pipes,GB/T24593 Stainless Steel Pipes,Welded Austenitic Steel Pipes
Home > Products > Stainless Steel Pipe > Welded austenitic boiler and heat-exchanger Stainless Steel Pipes

Welded austenitic boiler and heat-exchanger Stainless Steel Pipes

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    Payment Type: L/C,T/T,D/P,Paypal,Money Gram,Western Union
    Incoterm: FOB,CFR,CIF,FCA,CPT
    Min. Order: 5 Ton
    Delivery Time: 35 Days

Basic Info

Model No.: GB/T24593

Type: Welded

Certification: API, CE, BSI, UL

Application: Boiler Pipe

Section Shape: Round

Surface Treatment: Polished

Usage: Thermal Equipment

Technique: Cold Drawn, Cold Rolled Cold Drawn

Material: Stainless Steel, Stainless Steel 201/304/316

Name: Welded Austenitic Boiler Pipe

Grade: S30210 S30408 S30403 S31008

Surface: Pickling,polished

Finish: Heat Treatment

OD: 3-500mm

WT: 0.5-50mm

Additional Info

Packaging: in seaworthy packing

Productivity: 50000 tons/year

Brand: TORICH

Transportation: Ocean,Land,Air

Place of Origin: Zhejiang, China (Mainland)

Supply Ability: 20000 Ton per year

Certificate: ISO9001:2008 ISO14001:2008, TS16949

HS Code: 7304111000

Port: Ningbo,Shanghai,Zhoushan

Product Description

Stainless Steel Tube

China Stainless Steel Tube manufacturers, our Stainless Steel Exhaust Tube, Welded Steel Tube , Round Stainless Steel Pipe, Polish Stainless Steel Tube, Stainless Coiled Tube, Duplex Stainless Steel Tube are good in quality and competitive in price.

Welded Steel Pipe

China Welded Steel Pipe manufacturer, choose the high quality Spiral Welded Steel Pipe, High Frequency Welded Steel Pipe, Black Carbon Steel Welded Pipe, etc.

Product Name: Welded austenitic boiler and heat-exchanger Stainless Steel Pipes

Size range: O.D.:3-500mm W.T.:0.5-50mm L:2000-12000mm according to customers' actual application and production.

Application : For boiler and heat-exchanger

Steel Grade: 12Cr18Ni9,06Cr19Ni10,022Cr19Ni10,06Cr25Ni20,022Cr22Ni5Mo3N,019Cr19Mo2NbTi,06Cr13Al

Characteristic:

Good concentricity

Good surface quality

Good OD and ID tolerance

High Precision

Stable quality

Smooth Roughness

TORICH QUALITY ASSURANCE

Table1Tolerance of OD

Classification Nominal OD Permissible Tolerance
PC PB PA

H

T

<25 ±0.20 ±0.15 ±0.10
≥25~<40 ±0.30 ±0.25 ±0.20
≥40~<63 ±0.50 ±0.30 ±0.25
≥63~<90 ±0.60 ±0.50 ±0.40
≥90~<159 ±0.80 ±0.65 ±0.50
≥159~<300 ±0.8%D ±0.7%D ±0.5%D
≥300~<610 ±0.1%D ±0.8%D ±0.6%D
≥10 protocol protocol protocol

WC

SP

<25 ±0.15 ±0.12 ±0.10
≥25~<40 ±0.20 ±0.15 ±0.13
≥40~<50 ±0.20 ±0.18 ±0.15
≥50~<60 ±0.25 ±0.20 ±0.18
≥60~<90 ±0.30 ±0.28 ±0.25
≥90~<100 ±0.40 ±0.35 ±0.30
≥100~<200 ±0.5%D ±0.4%D protocol
≥200 protocol protocol protocol

Table 2Tolerance of WT

Nominal WT Permissible Tolerance
<0.5 ±0..10
≥0.5~1.0 ±0.15
>1.0~2.0 ±0.20
>2.0~<4.0 ±0.30
≥4.0 ±10%S

Table 3 Bending Degree

Nominal Wall Thickness/mm Bending Degree/(mm/m)
≤108 ≤1.0
>108~325 ≤1.5
>325 ≤2.5


Table 3 chemical composition

Steel grade

Chemical compositon %

C

Si

Mn

P

S

Ni

Cr

Mo

N

12Cr18Ni9

0.15

1.00

2.00

0.035

0.03

8.00~10.00

17.00

~19.00

-

0.10

06Cr18Ni10

0.08

1.00

2.00

0.035

0.03

8.00~11.00

18.00

~20.00

-

-

022Cr19Ni10

0.030

1.00

2.00

0.035

0.03

8.00~12.00

18.00

~20.00

-

-

07Cr19Ni10

0.04~0.10

1.00

2.00

0.035

0.03

8.00~11.00

18.00

~20.00

-

-

06Cr19Ni10N

0.08

1.00

2.00

0.035

0.03

8.00~11.00

18.00

~20.00

-

0.10

~0.16

022Cr19Ni10N

0.030

1.00

2.00

0.035

0.03

8.00~11.00

18.00

~20.00

-

0.10

~0.16

10Cr18Ni12

0.12

1.00

2.00

0.035

0.03

10.50~13.00

18.00

~20.00

-

-

06Cr23Ni13

0.08

1.00

2.00

0.035

0.03

12.00~15.00

17.00

~19.00

-

-

03Cr25Ni20

0.08

1.00

2.00

0.035

0.03

19.00~22.00

22.00

~24.00

-

-

06Cr17Ni12Mo2

0.08

1.00

2.00

0.035

0.03

10.00~14.00

24.00

~26.00

2.00

~3.00

-

022Cr17Ni12Mo2

0.030

1.00

2.00

0.035

0.03

10.00~14.00

16.00

~18.00

2.00

~3.00

-

06Cr17Ni12Mo2Ti

0.08

1.00

2.00

0.035

0.03

10.00~14.00

16.00

18.00

2.00

~3.00

-

06Cr17Ni12MoN

0.08

1.00

2.00

0.035

0.03

10.00~13.00

16.00

~18.00

2.00

~3.00

0.10

~0.16

022Cr17Ni12Mo2N

0.030

1.00

2.00

0.035

0.03

10.00~13.00

16.00

~18.00

2.00

~3.00

0.10

~0.16

06Cr19Ni13Mo3

0.08

1.00

2.00

0.035

0.03

11.00~15.00

16.00

~18.00

3.00

~4.00

-

Table 4 Mechanical Property

No.

No.in GB/T20878

Unified digital code

STEEL GRADE

Recommended heat treatment system

Tensile property

Hardness

tensile strength

Rm/(N/MM2)

Stipulated elongation strength of plastic mold

Rp0.2/(N/mm2)

Elongation

A/%

HRB

1

13

S30210

12Cr18Ni9

1040℃.Rapid cooling

515

205

35

90

2

17

S30408

06Cr19Ni10

1040℃.Rapid cooling

515

205

35

90

3

18

S30409

022Cr19Ni10

1040℃.Rapid cooling

485

170

35

90

4

19

S30458

07Cr19Ni10

1040℃.Rapid cooling

515

205

35

90

5

23

S30458

06Cr19Ni10N

1040℃.Rapid cooling

550

240

35

90

6

25

S30453

022Cr19Ni10N

1040℃.Rapid cooling

515

205

35

90

7

26

S30510

10Cr18Ni12

1040℃.Rapid cooling

515

205

35

90

8

32

S30908

06Cr23Ni13

1040℃.Rapid cooling

515

205

35

90

9

35

S31008

06Cr23Ni20

1040℃.Rapid cooling

515

205

35

90

10

38

S31608

06Cr17Ni12Mo2

1040℃.Rapid cooling

515

205

35

90

11

39

S31603

022Cr17Ni12Mo2

1040℃.Rapid cooling

485

170

35

90

12

41

S31668

06Cr17Ni12Mo2Ti

1040℃.Rapid cooling

515

205

35

90

13

43

S31658

06Cr17Ni12Mo2N

1040℃.Rapid cooling

550

240

35

90

14

44

S31653

022Cr17Ni12Mo2N

1040℃.Rapid cooling

515

205

35

90

15

49

S31708

06Cr19Ni13Mo3

1040℃.Rapid cooling

515

205

35

90

16

50

S31703

022Cr19Ni13Mo3

1040℃.Rapid cooling

515

205

35

90

17

55

S32168

06Cr18Ni11Ti

1040℃.Rapid cooling

515

205

35

90

18

62

S34778

06Cr18Ni11Nb

1040℃.Rapid cooling

515

205

35

90

19

63

S34779

07Cr18Ni11Nb

1040℃.Rapid cooling

515

205

35

90

Table 5 Inspection items and sampling quantity

Inspection items

sampling quantity

Chemical composition

Each furnace

Take one sample

Tensile test

One sample for each batch on two test tubes

Hardness test

One sample for each batch on two test tubes

Flattening test

One sample for each batch on two test tubes

Coiling test

One sample for each batch on two test tubes

Expansion test

One sample for each batch on two test tubes

Reversed bending test

One sample at every 450M of tubes

longitudinal flattenin test

One sample for each batch on two test tubes

Hydraulic test

Per piece

Eddy current flaw detection

Per piece

Intergranular corrosion test

One sample for each batch on two test tubes

Grain size test

One sample for each batch on two test tubes

Ray detection

Per piece

Underwater air tightness test

Per piece

Welded Stainless Steel Tubes


China Stainless Steel Tube manufacturers, our Stainless Steel Exhaust Tube, Welded Steel Tube, Round Stainless Steel Pipe , Polish Stainless Steel Tube, Stainless Coiled Tube, Duplex Stainless Steel Tube are good in quality and competitive in price.

Looking for ideal GB/T24593 Boiler and Heat-exchanger Pipes Manufacturer & supplier ? We have a wide selection at great prices to help you get creative. All the GB/T24593 Stainless Steel Pipes are quality guaranteed. We are China Origin Factory of Welded Austenitic Steel Pipes. If you have any question, please feel free to contact us.

Product Categories : Stainless Steel Pipe

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  • Welded austenitic boiler and heat-exchanger Stainless Steel Pipes
  • Welded austenitic boiler and heat-exchanger Stainless Steel Pipes
  • Welded austenitic boiler and heat-exchanger Stainless Steel Pipes
  • Welded austenitic boiler and heat-exchanger Stainless Steel Pipes
  • Welded austenitic boiler and heat-exchanger Stainless Steel Pipes
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