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GB/T 14975 ASTM A 959-09 12Crl18Ni9 Precision Steel Tube Seamless Stainless Steel Tubes

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GB/T 14975 ASTM A 959-09 12Crl18Ni9 Precision Steel Tube Seamless Stainless Steel Tubes

Brand Name : TORICH

Model Number : GB/T 14975

Certification : ISO 9001 ISO 14001 TS 16949 EN 10204.3.1 LR KR

Place of Origin : CHINA

MOQ : 0.5 ton

Price : negotiable

Payment Terms : L/C, D/A, D/P, T/T, Western Union, MoneyGram

Supply Ability : 60000 Tons per year

Delivery Time : 35-45 Days

Packaging Details : In bundles in wooden box

Product name : ASTM A 959-09 Seamless Stainless Steel Tubes for Structure 12Crl18Ni9

Keyword : ASTM A 959-09 Seamless Stainless Steel Tubes for Structure 12Crl18Ni9

Type : Structural Steel Pipes

Surface : Galvanized Coated

Material : 12Crl18Ni9 06Crl19Ni10 022Crl19Ni10

Usage : Construction Structure

Length : 2-12m

OD : 10-500mm

WT : 1-20mm

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GB/T 14975 ASTM A 959-09 Seamless Stainless Steel Tubes for Structure 12Crl18Ni9

Application:General structural and machanical structure
Size:L--2-12m OD--10-500mm WT--1-20mm
Grade of steel:12Crl18Ni9 06Crl19Ni10 022Crl19Ni10 06Crl19Ni10N 06Crl19Ni9NbN 022Crl19Ni10N 06Cr23Ni13
Smelting method of steel:Refining molten steel and refining outside furnace
Manufacture method of steel tube: Hot rolling (extrusion, expansion) or cold drawing (rolling) seamless
Delivery State:Delivery of heat treatment and pickling
Test item:Chemical composition
Tensile test
Hardness test
Ultrasonic testing
Hydraulic test
Flattening test
Expansion test
Intergranular corrosion test

Table 1 The Tolerance of Nominal Outer Diameter and Wall Thickness

Unit:mm

Hot Roll(Extrusion,Expansion)Steel TubeCold Drawn(Roll) Steel Tube
DiamensionToleranceDiamensionTolerance
Ordinary Level PAHigh Level PCOrdinary Level PAHigh Level PC

Nominal Outer Diameter
D

<76.1±1.25%D±0.60

Nominal Outer Diameter
D

<12.7±0.30±0.10
76.1~<139.7±0.8012.7~<38.1±0.30±0.15
139.7~<273.1±1.5%D±1.2038.1~<88.9±0.40±0.30
88.9~<139.7±0.9%D±0.40
273.1~<323.9±1.60139.7~<203.2±0.80
203.2~<219.1±1.10
≥323.9±0.6%D219.1~<323.9±1.60
≥323.9±0.5%D

Nominal Wall Thinckness
S

All Wall Thickness

+15%S
-12.52%S

±12.5%S

Nominal Wall Thinckness
S

All Wall Thickness

+12.5%S
-10%S

±10%S

Table 2 Tolerance of Minimum Wall Thickness

Unit:mm

Production MethodDiamensionTolerance
Ordinary Level PAHigh Level PC

Hot Roll(Extrusion,Expansion)Steel Tube

W-H

Smin<15

+27.5% Smin

0

+25% Smin

0

Smin≥15

+35% Smin

0

Cold Drawn(Roll) Steel Tube

W-C

All Wall Thickness

+22% S

0

+20% S

0

Table 5 Testing items and sampling quantity of steel tubes

NumberTesting itemsSampling quantity
1Chemical composition1 sample from each furnace
2Tensile test1 sample from each of two steel tubes on each batch
3Hardness test1 sample from each of two steel tubes on each batch
4Ultrasonic testingALL
5Hydraulic testALL


GB/T 14975 ASTM A 959-09 12Crl18Ni9 Precision Steel Tube Seamless Stainless Steel Tubes

GB/T 14975 ASTM A 959-09 12Crl18Ni9 Precision Steel Tube Seamless Stainless Steel Tubes

























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stainless steel round tube

      

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