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Mr. Richard SHEN
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Mr. Richard SHEN
Torich International Co.,Ltd--The Steel Tube Maker
| 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 | - |
| 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 |
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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