GB/T12771 12Cr18Ni9 06Cr18Ni11Ti 304 / 316Welded Stainless Steel Pipes For Liquid Delivery
Basic Properties
Place of Origin:
China
Brand Name:
TORICH
Certification:
ISO9001:2008,ISO14001:2008
Model Number:
GB/T12771
Trading Properties
Minimum Order Quantity:
5 ton
Price:
negotiable
Payment Terms:
L/C, D/A, D/P, T/T, Western Union, MoneyGram
Supply Ability:
50000Ton per year
Product Summary
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: ...
Product Details
Highlight:
stainless tube steel
,large diameter stainless steel tube
Material:
Stainless Steel 201/304/316
Grade:
S30210 S30408 S30403 S31008
Surface:
Pickling
Technique:
Arc Welding
OD:
3-500mm
WT:
0.5-50mm
Product Description
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 |
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