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GB/T12771 12Cr18Ni9 06Cr18Ni11Ti 304 / 316Welded Stainless Steel Pipes For Liquid Delivery
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Brand Name:TORICH
Model Number:GB/T12771
Certification:ISO9001:2008,ISO14001:2008
Price:negotiable
Payment Terms:L/C, D/A, D/P, T/T, Western Union, MoneyGram
Supply Ability:50000Ton per year
Delivery Time:30-35 work days
Company Data
Verified Supplier
Contact Person
Richard SHEN
Business Type:
Manufacturer Distributor/Wholesaler Importer Exporter Trading Company Seller
Officials:
Suite 1004, Hongan Plaza, #258 Die Yuan Road, Yinzhou District, Ningbo City, China
Quality:
Quality Certifitation Available
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Product Details
Company Profile
Product Details
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 MPa | tensile strength
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 |
Company Profile
TORICH INTERNATIONAL LIMITED
Who We are ？
-------A professional steel pipes materials inventor, manufacturer
and solution provider
Torich International Limited is a professional manufacturer
and exporter of steel pipes materials. It is an international
marketing and sales company specialized in steel tubes, which holds
the factories of Seamless Steel Tubes with Carbon and Alloy Steel
Grade, Welded Precision Steel Tubes，DOM Steel Tubes, Seamless &
Welded Stainless Steel Tubes with Nickel and Alloy Steel Grade.
Our factory was established since 1997, with the name of Haiyan
Sanxin Steel Pipe Co., Ltd. The factories’ technicians are of great
engineering experience in steel pipe industry for more than 20
years, which are in great command of production technology for Cold
Drawing and Cold Rolling. So we have strong technician team and
manufacturing capability.
What products we do？
------- Invent and produce various Precision Steel Pipes
Our steel pipes cover the following ranges:
Seamless Precision Steel Pipes
Bearing Steel Tubes
Welded Precision Steel Pipes, with DOM production
Seamless Heat Exchanger Steel Pipe
Seamless Boiler Steel Pipes
Honed Tubes
Hydraulic Cylinder Steel Tubes
Hydraulic Telescopic Cylinder Tubes
Seamless Structural Steel Pipes
Seamless Mechanical Steel Pipes
Seamless Alloy Steel Tubes & Pipes
Seamless Stainless Steel tubes
Welded Stainless Steel Tubes
Seamless Stainless Steel Tubes & Pipes
Welded Stainless Steel Tubes & Pipes
Seamless Carbon Steel Tubes & Pipes
Nickel Alloy Steel Tubes & Pipes
What TORICH do:
1. Producing Steel Tubes
2. Selling both on Domestic and International Market
3. Precisely Targeting Customers’ Requirement- Sourcing the right
factory for right products for Customers
Products Application:
Oil Cylinders
Air Cylinder,
Automotive Cylinder Liners
Boilers, Pressure Vessels
Shell & Heat Exchangers
Jack Lifting
Telescopic Systems
Pneumatic Cylinders
Agricultural Machineries
Size range is:
O.D. 4-350mm,
W.T. 0.5-30mm,
Length: according to customer’s requirement and agreement
Steel Grade:
Carbon Steel Grade:
ST35.8, ST37.0, ST44, ST52;
E155, E195, E215, E235, E275, E355;
195GH, P235GH, P265GH, P195TR1, P195TR2, P235TR1, P235TR2, P265TR1,
P265TR2;
SAE1010, SAE1020, SAE1026, SAE1035, SAE1045;
Carbon steel tube: SA178, A179, A192, A210, SA213, SA214, etc.
Alloy Steel Grade:
T2, T5, T9, T11, T12, T17, T21, T22, T91,T92, 15Mo3,16Mo3,
13CrMo44;
SAE4130, SAE4140, 40Cr, 40Cr4, 10CrMo910, 12CrMo910, 11CrMo910,
25CrMo4, 35CrMo, 35CrMo4, 42CrMo4, 34CrMo4, 20MnV, 20MnV6,20CrMn;
Carbon steel tube: A179,A192,A210,DIN17175,etc.
Bearing Steel Grades:
GCr15 52100 suj2 suj3 100Cr6 SKF3S SKF3S 20CrNiMo 8620H 4118H;
Nickel Alloy Grade:
N02200/2201, N04400, N06600, N06601, N06625, N06852, N06219,
N06690, N08800/8810/8811, N08825, N08028, N08535, N08904, N08925,
N08926, N010276, N06022, etc.
Austenitic/Super Austenitic Stainless Steel Grade:
304/304L, 316/316L, 314, 321, 347H, 316Ti, 316LMod, 317L/N, 310S,
253MA, 330, 904L, S31254, XM-19, etc.
Ferrite/Martensite Stainless Steel Grade:
TP410, TP405, TP420, TP430, TP430Ti, TP403, TP409, TP444, TP439,
TP446, etc.
Duplex/Super Duplex Stainless Steel Grade:
S31803, S32304, S31500, S32550, S32750, S32760, etc.
Corporate Culture:
We focus on Quality First, Quality Traceability, and Quality
Stability!
We focus on Customer First, People First, and Quality-Oriented!
Success:
First factory started in 1997, in the name of Torich , now covers
50000 square meters of factory building, with more than
100employees, and over 45 million RBM assets.
In 2008, we started the company of Torich International
Limited for international business and marketing.
Welcome partners from all over the world for long term cooperation!
Send your message to this supplier
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