Pickling Surface Welded Alloy Steel Pipe ASTM A250 Electric Resistance
Brand Name:TORICH
Certification:ISO 9001
Model Number:ASTM A250
Minimum Order Quantity:2 Tons
Delivery Time:30-45 days
Payment Terms:L/C, D/A, D/P, T/T, Western Union, MoneyGram
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Ningbo Zhejiang China
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Product Details
GB/T12771 Polished Liquid Delivery Welded Stainless Steel Pipes 12Cr18Ni9
| Description | alloy steel pipe, alloy seamless steel pipe, alloy welded pipe, seamless alloy steel pipe,alloy pipe,alloy steel tube |
| Standard | ASTM A335,ASTM A213,JIS G3458,JIS A3462,DIN17175,GB5310,GB9948 |
| Material | ASTM A335 P2, ASTM A335 P12, ASTM A335 P11, ASTM A335 P22, ASTM A335 P5, ASTM A335 P9, ASTM A213 T2, ASTMA213T11, ASTMA213T5,ASTMA213T9,ASTMA21T22,1Cr5Mo,12Cr2Mo, 12Cr1MoV,15CrMo,etc. |
| Outside Diameter | 6 mm~2400mm |
| Wall thickness | 1mm~120mm |
| Length | 12m,11.8m,6m,5.8m or as required |
| Surface | Black Painted,PE coated,Galvanized. |
| Export to | Singapore,Indonesia,Ukraine,Brazil,Korea,Thailand,USA, UK,Canada,SaudiArabia,Ireland,Oman,Russia,Spain,SouthAfrica, Viet Nam,Peru,Dubai,etc. |
| Application | Alloy steel pipe applies to petroleum, chemical industry, electric power, boiler, high temperature resistant, low temperature resistant, corrosion resistant steamless steel pipe used. |
| Price term | FOB,CIF,CFR,Ex-work,CNF,etc. |
| Contacts | If you have any questions, please feel free to contact me. |
Surface Quality:
Inside and outside surface is smooth.There is no delamination,crack,folding,double skin,twisted,pickling,residual scale or other defects.
Test Item:
Chemical Component
Tensile Test
Hydraulic Test
Eddy current Test
Flattening Test
Weld Transverse Bending Test
Intergranular Corrosion Test
Radiographic Inspection
Flanging Test
Austenitic Grain Size
Impact Test of Weld Joint
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 | |
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 | 21 | 410 | 20 | -- |
Pickling Surface Welded Alloy Steel Pipe ASTM A250 Electric Resistance
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