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GB/T24593 12Cr18Ni9 06Cr18Ni11Ti 304 / 316Welded Stainless Steel Tube OD 3-500mm

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GB/T24593 12Cr18Ni9 06Cr18Ni11Ti 304 / 316Welded Stainless Steel Tube OD 3-500mm

China GB/T24593 12Cr18Ni9 06Cr18Ni11Ti 304 / 316Welded Stainless Steel Tube OD 3-500mm supplier
GB/T24593 12Cr18Ni9 06Cr18Ni11Ti 304 / 316Welded Stainless Steel Tube OD 3-500mm supplier GB/T24593 12Cr18Ni9 06Cr18Ni11Ti 304 / 316Welded Stainless Steel Tube OD 3-500mm supplier GB/T24593 12Cr18Ni9 06Cr18Ni11Ti 304 / 316Welded Stainless Steel Tube OD 3-500mm supplier GB/T24593 12Cr18Ni9 06Cr18Ni11Ti 304 / 316Welded Stainless Steel Tube OD 3-500mm supplier GB/T24593 12Cr18Ni9 06Cr18Ni11Ti 304 / 316Welded Stainless Steel Tube OD 3-500mm supplier GB/T24593 12Cr18Ni9 06Cr18Ni11Ti 304 / 316Welded Stainless Steel Tube OD 3-500mm supplier

Large Image :  GB/T24593 12Cr18Ni9 06Cr18Ni11Ti 304 / 316Welded Stainless Steel Tube OD 3-500mm

Product Details:

Place of Origin: China
Brand Name: TORICH
Certification: ISO9001:2008,ISO14001:2008
Model Number: GB/T 24593

Payment & Shipping Terms:

Minimum Order Quantity: 5 ton
Price: negotiable
Packaging Details: in seaworthy packing
Delivery Time: 35-40 work days
Payment Terms: L/C, D/A, D/P, T/T, Western Union, MoneyGram
Supply Ability: 20000 Ton per year
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Detailed Product Description
Material: Stainless Steel 201/304/316 Grade: S30210 S30408 S30403 S31008
Surface: Pickling Technique: Cold Rolled Cold Drawn
OD: 3-500mm WT: 0.5-50mm

Product Name: GB/T24593 12Cr18Ni9 06Cr18Ni11Ti 304/316Welded 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


GB/T24593 12Cr18Ni9 06Cr18Ni11Ti 304 / 316Welded Stainless Steel Tube OD 3-500mm GB/T24593 12Cr18Ni9 06Cr18Ni11Ti 304 / 316Welded Stainless Steel Tube OD 3-500mm

Contact Details
TORICH INTERNATIONAL CO.,LTD

Contact Person: Jack Jiang

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