Home ProductsStainless Steel TubeGB/T12771 12Cr18Ni9 06Cr18Ni11Ti 304 / 316Welded Stainless Steel Pipes For Liquid Delivery
Good quality DOM Steel Tube for sales
Good quality DOM Steel Tube for sales
Dear Richard, thks for your continous support to our company, we have faith in your company's product and services

—— Cassy

you always commit and manage to meet our very tight tolerence requirement,furthermore Torich International never fail our delivery.

—— Cassy

This is what we are looking for, a reliable and responsible supplier.

—— Cassy

I'm Online Chat Now

GB/T12771 12Cr18Ni9 06Cr18Ni11Ti 304 / 316Welded Stainless Steel Pipes For Liquid Delivery

China GB/T12771 12Cr18Ni9 06Cr18Ni11Ti 304 / 316Welded Stainless Steel Pipes For Liquid Delivery supplier
GB/T12771 12Cr18Ni9 06Cr18Ni11Ti 304 / 316Welded Stainless Steel Pipes For Liquid Delivery supplier GB/T12771 12Cr18Ni9 06Cr18Ni11Ti 304 / 316Welded Stainless Steel Pipes For Liquid Delivery supplier GB/T12771 12Cr18Ni9 06Cr18Ni11Ti 304 / 316Welded Stainless Steel Pipes For Liquid Delivery supplier GB/T12771 12Cr18Ni9 06Cr18Ni11Ti 304 / 316Welded Stainless Steel Pipes For Liquid Delivery supplier GB/T12771 12Cr18Ni9 06Cr18Ni11Ti 304 / 316Welded Stainless Steel Pipes For Liquid Delivery supplier

Large Image :  GB/T12771 12Cr18Ni9 06Cr18Ni11Ti 304 / 316Welded Stainless Steel Pipes For Liquid Delivery

Product Details:

Place of Origin: China
Brand Name: TORICH
Certification: ISO9001:2008,ISO14001:2008
Model Number: GB/T12771

Payment & Shipping Terms:

Minimum Order Quantity: 5 ton
Price: negotiable
Packaging Details: in seaworthy packing
Delivery Time: 30-35 work days
Payment Terms: L/C, D/A, D/P, T/T, Western Union, MoneyGram
Supply Ability: 50000Ton per year
Contact Now
Detailed Product Description
Material: Stainless Steel 201/304/316 Grade: S30210 S30408 S30403 S31008
Surface: Pickling Technique: Arc Welding
OD: 3-500mm WT: 0.5-50mm

 

Product Name:

GB/T12771 12Cr18Ni9 06Cr18Ni11Ti Welded Stainless Steel Pipes For Liquid Delivery

 

Standard: Size Range:

GB/T12771 OD:5-500mm WT:0.5-50mm Length:3-9 M,according to customers' actual application and production.

 

Application: For Liquid Delivery

 

Steel Grade: 304/316/321/347/444

 

Technology: arc welding

 

Characteristic:

Good concentricity

Good surface quality

Good OD and ID tolerance

High Precision

Stable quality

Smooth Roughness

TORICH QUALITY ASSURANCE

 

Table 1 Tolerance of OD

Classification D Permissible Tolerance
A B
H All Dimensions ±0.5% or ±0.20 ±0.75% or ±0.30
T <40 ±0.20 ±0.30
≥40~<65 ±0.30 ±0.40
≥65~<90 ±0.40 ±0.50
≥90~<168.3 ±0.80 ±1.00
≥168.3~<325 ±0.75%D ±1%D
≥325~<610 ±0.6%D ±1%D
≥610 ±0.6%D ±0.7%D or ±10

WC

SP

<40 ±0.15 ±0.20
≥40~<60 ±0.20 ±0.30
≥60~<100 ±0.30 ±0.40
≥100~<200 ±0.4%D ±0.5%D
≥200 ±0.5%D ±0.75%D

 

Table 2 Tolerance 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

Out diameter/mm Bending degree/(mm/m)
≤108 ≤1.5
>108~325 ≤2.0
>325 ≤2.5

 

Table4 The density of the steel and Calculation of Theoretic Weight

No. Steel Grade Density/(kg/dm3) The formula after conversion
1 12Cr18Ni9 7.93 W=0.02491S(D-S)
2 06Cr19Ni10
3 022Cr19Ni10 7.90 W=0.02482S(D-S)
4 06Cr18Ni11Ti 8.03 W=0.02507S(D-S)
5 06Cr25Ni20 7.98 W=0.02507S(D-S)
6 06Cr17Ni12Mo2 8.00 W=0.02513S(D-S)
7 022Cr17Ni12Mo2
8 06Cr18Ni11Nb 8.03 W=0.02523(D-S)
9 022Cr18Ti 7.70 W=0.02419(D-S)
10 022Cr18Ti 7.75 W=0.02435S(D-S)
11 06Cr13Al
12 022Cr19Mo2NbTi
13 022Cr12Ni
14 06Cr13

 

Table 5 Steel Grade and Chemical Component(Melting Analysis)

No. Type Unified digital code Grade Chemical Componenet(Quality Fraction)/%
C Si Mn P S Ni Cr Mo N Others
1 Austenite S30210 12Cr18Ni9 ≤0.15 ≤0.75 ≤2.00 ≤0.040 ≤0.030 8~10 17~19 - ≤0.10 -
2 S30408 06Cr19Ni10 ≤0.08 ≤0.75 ≤2.00 ≤0.040 ≤0.030 8~11 18~20 - - -
3 S30403 022Cr19Ni10 ≤0.030 ≤0.75 ≤2.00 ≤0.040 ≤0.030 8~12 18~20 - - -
4 S31008 06Cr25Ni20 ≤0.08 ≤1.50 ≤2.00 ≤0.040 ≤0.030 19~22 24~26 - - -
5 S31608 06Cr17Ni12Mo2 ≤0.08 ≤0.75 ≤2.00 ≤0.040 ≤0.030 10~14 16~18 2~3 - -
6 S31603 022Cr17Ni12Mo2 ≤0.08 ≤0.75 ≤2.00 ≤0.040 ≤0.030 10~14 16~18 2~3 - -
7 S32168 06Cr18Ni11Ti ≤0.08 ≤0.75 ≤2.00 ≤0.040 ≤0.030 9~12 17~19 - - Ti5×C~0.70
8 S34778 06Cr18Ni11Nb ≤0.08 ≤0.75 ≤2.00 ≤0.040 ≤0.030 9~12 17~19 - - Nb10×C~1.10
9 Ferrite S11863 022Cr18Ti ≤0.03 ≤0.75 ≤1 ≤0.04 ≤0.03 (0.60) 16~19 - - Ti or Nb 0.1~1
10 S11972 019Cr19Mo2NbTi ≤0.025 ≤0.75 ≤1 ≤0.04 ≤0.03 1.00 17.5~19.50 1.75~2.50 ≤0.035 (Ti+Nb)[0.2+4(C+N)]~0.8
11 S11348 06Cr13Al ≤0.08 ≤0.75 ≤1 ≤0.04 ≤0.03 (0.60) 11.50~14.50 - - Al:0.1~0.3
12 S11163 022Cr11Ti ≤0.03 ≤0.75 ≤1 ≤0.04 ≤0.02 (0.60) 10.5~11.7 - ≤0.03 Ti≥8(C+N),Ti0.15~0.5,Nb0.1
13 S11213 022Cr12Ni ≤0.03 ≤0.75 ≤1.5 ≤0.04 0.015 0.3~1 10.5~12.5 - ≤0.03

 

 

 

14 Martensitic S41008 06Cr13 ≤0.08 ≤0.75 ≤1 ≤0.04 ≤0.03 (0.60) 11.5~13.5 - - -

 

Table 6 Heat treatment system of steel pipe

Number Type New Brand Old Brand Recommended heat treatment system
1 Austenite 12Cr18Ni9 1Cr18Ni9 solution treatment

1010℃~1150℃

rapid cooling

2 06Cr19Ni10 0Cr18Ni9

1010℃~1150℃

rapid cooling

3 022Cr19Ni10 00Cr19Ni10

1010℃~1150℃

rapid cooling

4 06Cr25Ni20 0Cr25Ni20

1030℃~1180℃

rapid cooling

5 06Cr17Ni12Mo2 0Cr17Ni12Mo2

1010℃~1150℃

rapid cooling

6 022Cr17Ni12Mo2 00Cr17Ni14Mo2

1010℃~1150℃

rapid cooling

7 06Cr18Ni11Ti 0Cr18Ni10Ti

920℃~1150℃

rapid cooling

8 06Cr18Ni11Nb 0Cr18Ni11Nb

980℃~1150℃

rapid cooling

9 Ferritic 022Cr18Ti 00Cr17 Annealing treatment 780℃~950℃ rapid cooling or slow cooling
10 019Cr19Mo2NbTi 00Cr18Mo2

800℃~1050℃

rapid cooling

11 06Cr13Al 0Cr13Al 780℃~830℃ rapid cooling or slow cooling
12 022Cr11Ti --

830℃~950℃

rapid cooling

13 022Cr12Ni --

830℃~950℃

rapid cooling

14 Martensitic 06Cr13 0Cr13 750℃ rapid cooling or 800℃~900℃ slow cooling
The demand side stipulates that the stabilization heat treatment system is 850 C ~930 C rapid cooling when the heat treatment needs to be stabilized after the solution heat treatment.
 

 

 

 

Table 7 Mechanical properties of steel tubes.

Number New Brand Ola Brand

non-proportional extension strength GB/T12771 12Cr18Ni9 06Cr18Ni11Ti 304 / 316Welded Stainless Steel Pipes For Liquid Delivery/

MPa

tensile strength

GB/T12771 12Cr18Ni9 06Cr18Ni11Ti 304 / 316Welded Stainless Steel Pipes For Liquid Delivery/

MPa

elongation after fracture

A/

%

Heat treatment condition Non-heat treatment condition
Not less than
1 12Cr18Ni9 1Cr18Ni9 210 520 32 25
2 06Cr19Ni10 0Cr18Ni9 210 520
3 022Cr19Ni10 00Cr19Ni10 180 480
4 06Cr25Ni20 0Cr25Ni20 210 520
5 06Cr17Ni12Mo2 0Cr17Ni12Mo2 210 520
6 022Cr17Ni12Mo2 00Cr17Ni14Mo2 180 480
7 06Cr18Ni11Ti 0Cr18Ni10Ti 210 520
8 06Cr18Ni11Nb 0Cr18Ni11Nb 210 520
9 022Cr18Ti 00Cr17 180 360 20 --
10 019Cr19Mo2NbTi 00Cr18Mo2 240 410
11 06Cr13Al 0Cr13Al 177 410
12 022Cr11Ti -- 275 400 18 --
13 022Cr12Ni -- 275 400 18 --
14 06Cr13 0Cr13 210 410 20 --
 

 

 

Table 8 Methods of sampling and test for steel pipe inspection

Number Inspection Item Number of Sampling Sampling Method Test Method
1 Chemical Composition 1 samples per stove GB/T 20066 GB/T 223,GB/T 11170,GB/T 20123,GB/T 20124
2 Tensile Test 1 samples per batch on two steel tubes GB/T 2975 GB/T 228
3 Hydraulic Pressure Test One by one __ GB/T 241
4 Eddy Current Test One by one __ GB/T 7735
5 Flattening Test 1 samples per batch on 1 steel tube GB/T 246 GB/T 246
6 Transverse Bending Test of Welds 1 samples per batch on 1 steel tube GB/T 232 GB/T 232
7 Intercryctalline Corrosion 1 samples per batch on 1 steel tube GB/T 4334.5 GB/T 4334.5
8 Radiographic Test 6.6 steel tube __ GB/T 3323
9 Flange Test 1 samples per batch on 1 steel tube GB/T 245 GB/T 245
10 Austenite Grain Size 1 samples per batch on 1 steel tube GB/T 6394 GB/T 6394
11 Impact Test for Welded Joint Agreement GB/T 2650 GB/T 2650
 


GB/T12771 12Cr18Ni9 06Cr18Ni11Ti 304 / 316Welded Stainless Steel Pipes For Liquid Delivery GB/T12771 12Cr18Ni9 06Cr18Ni11Ti 304 / 316Welded Stainless Steel Pipes For Liquid Delivery

Contact Details
TORICH INTERNATIONAL CO.,LTD

Contact Person: Jack Jiang

Send your inquiry directly to us (0 / 3000)