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Custom Seamless Stainless Steel Pipes For Fluid Transportation GB/T 14976

Categories Stainless Steel Tube
Brand Name: TORICH
Model Number: GB/T 14976
Certification: ISO 9001 ISO 14001 TS 16949
Place of Origin: China
MOQ: 1 Ton
Price: USD 3000-5000 / Ton
Payment Terms: L/C, D/A, D/P, T/T, Western Union, MoneyGram
Supply Ability: 40000 Ton/Year
Delivery Time: 45 days
Packaging Details: Packing in wooden box,hexagonal bundles or other seaworthy ways.
Product Name: Seamless Stainless Steel Pipes for Fluid Transportation GB/T 14976
Material: 302,304,304L/N,316L/N
Surface: Polishing
Application: 302,304,304L/N,316L/N
Shape: Round
OD: 4-1200mm
WT: 0.3-200mm
Length: 1-12m
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Custom Seamless Stainless Steel Pipes For Fluid Transportation GB/T 14976

Seamless Stainless Steel Pipes for Fluid Transportation GB/T 14976

Spec:
Material:
Size Range:OD:4-1200mm
WT:0.3-200mm
General Length:1-12m
Tolerance:
According to the following tables or customers’ request.


Table 1 The Tolerance of Outer Diameter and Wall Thickness Unit:mm

Hot rolling(extrusion,expansion) steel tubeCold drawn(rolling)steel tube
DiamensionToleranceDiamensionTolerance
Ordinary Grade PAHigh Grade PCOrdinary Grade PAHigh Grade PC

Nominal Outer Diameter

D

68~159±1.25%D±1%D

Nominal Outer Diameter

D

6~10±0.20±0.15
>10~30±0.30±0.20
>30~50±0.40±0.30
>50~219±0.85%D±0.75%D
>159±1.5%D>219±0.9%D±0.8%D

Nominal Wall Thickness

S

<15

+15%S

-12.5%S

±12.5%S

Nominal Wall Thickness

S

≤3±12%S±10%S
≥15

+20%S

-15%S

>3

+12.5%S

-10%S

±10%S

Table2 The Tolerance of Minimum Wall Thickness Unit:mm

Manufacturing MethodDiamensionTolerance
Ordinary Grade PAHigh Grade PC

Hot rolling(extrusion,expansion) steel tube

W-H

Smin<15

+25%Smin

0

+22.5%Smin

0

Smin≥15

+32.5%Smin

0

Cold drawn(rolling)steel tube

W-C

All Wall Tickness

+22%Smin

0

+20%Smin

0

Table 3 Grade and Chemical Component

No.GB/T 20878GradeChemical Component(Quality Fraction)/%
No.Unified Digital CodeCSiMnPSNiCrMoCuNOthers
113S3021012Cr18Ni90.151.002.000.0350.0308.00~10.0017.00~19.00--0.10-
217S3040806Cr19Ni100.081.002.000.0350.0308.00~11.0018.00~20.00----
318S30403022Cr19Ni100.0301.002.000.0350.0308.00~12.0018.00~20.00----
423S3045806Cr19Ni10N0.081.002.000.0350.0308.00~11.0018.00~20.00--0.10~0.16-
524S3047806Cr19Ni9NbN0.0301.002.500.0350.0307.50~10.5018.00~20.00--0.15~0.30Nb:0.15
625S30453022Cr19Ni10N0.081.002.000.0350.0308.00~11.0018.00~20.00--0.10~0.16-
732S3090806Cr23Ni130.0301.002.000.0350.03012.00~15.0022.00~24.00----
835S3100806Cr25Ni200.081.502.000.0350.03019.00~22.0024.0~26.00----
938S3160806Cr17Ni12Mo20.081.002.000.0350.03010.00~14.0016.00~18.002.00~3.00---
1039S31603022Cr17Ni12Mo20.0301.002.000.0350.03010.00~14.0016.00~18.002.00~3.00---
1140S3160907Cr17Ni12Mo20.04~0.101.002.000.0350.03010.00~14.0016.00~18.002.00~3.00---
1241S3166806Cr17Ni12Mo2Ti0.081.002.000.0350.03010.00~14.0016.00~18.002.00~3.00--Ti:5C~0.70

Table 4 Recommended Heat Treatment System,Steel Tube Mechanical Properties and Density

Organization typeNo.GB/T 20878GradeRecommended Heat Treatment SystemMechanical Properties

Density

ρ/(kg/dm2)

No.Unified digital code

Tensile strength

Rm/MPa

Specified plastic elongation strength

Rp0.2/MPa

Percentage elongation after fracture

A/%

Not less than
Austenitic113S3021012Cr18Ni91010℃~1150℃,cold or otherwise520205357.93
217S3040806Cr19Ni101010℃~1150℃,cold or otherwise520205357.93
318S30403022Cr19Ni101010℃~1150℃,cold or otherwise480175357.90
423S3045806Cr19Ni10N1010℃~1150℃,cold or otherwise550275357.93
524S3047806Cr19Ni9NbN1010℃~1150℃,cold or otherwise685345357.98
625S30453022Cr19Ni10N1010℃~1150℃,cold or otherwise550245407.93
732S3090806Cr23Ni131010℃~1150℃,cold or otherwise520205407.98
835S3100806Cr25Ni201010℃~1150℃,cold or otherwise520205407.98
938S3160806Cr17Ni12Mo21010℃~1150℃,cold or otherwise520205358.00
1039S31603022Cr17Ni12Mo21010℃~1150℃,cold or otherwise480175358.00
1140S3160907Cr17Ni12Mo2≥1040℃,cold or otherwise515205357.98
1241S3166806Cr17Ni12Mo2Ti1000℃~1100℃,cold or otherwise530205357.90

Table 5 Steel tube Inspection Item,Test Method and Sampling Quantity

No.Inspection ItemSampling QuantitySampling MethodTest Method
1Chemical ComponentTake a sample of each furanceGB/T 20066GB/T 223,GB/T 11170,GB/T20123,GB/T 20124
2Tensile TestTake a sample between two steel tubes of each batchGB/T 2975GB/T 228.1
3Flattening TestTake a sample between two steel tubes of each batchGB/T 246GB/T 246
4Flaring TestTake a sample between two steel tubes of each batchGB/T 242GB/T 242
5Hydraulic TestEach piece-GB/T 241
6Ultrasonic TestEach piece-GB/T 5777-2008
7Eddy TestEach piece-GB/T 7735-2004
8Intercrystalline corrosion testTake a sample between two steel tubes of each batchGB/T 4334-2008GB/T 4334-2008

Table A.1 Stainless Steel Grade Comparison

No.GB/T 20878-2007ASTM A 959-09

JIS G4303-2005

JIS G 4311-1991

ISO/TS 15510:2003

ISO 4955:2005

EN 10088:1-2005

ΓOCT

5632-1972

Unified Digital CodeGrade
1S3021012Cr18Ni9S30200,302SUS302X10CrNi18-8X10CrNi18-8,1.431012X18H9
2S3040806Cr19Ni10S30400,304SUS304X5CrNi18-9X5CrNi18-10,1.4301-
3S30403022Cr19Ni10S30403,304LSUS304LX2CrNi19-11X2CrNi19-11,1.430603X18H11
4S3045806Cr19Ni10NS30451,304NSUS304N1X5CrNiN18-8X5CrNiN19-9,1.4315-
5S3047806Cr19Ni9NbNS30452,XM-21SUS304N2---
6S30453022Cr19Ni10NS30453,304LNSUS304LNX2CrNiN18-9X2CrNiN18-10,1.4311-
7S3090806Cr23Ni13S30908,309SSUS309SX12CrNi23-13X12CrNi23-13,1.4833-
8S3100806Cr25Ni20S31008,310SSUS310SX8CrNi25-21X8CrNi25-21,1.484510X23H18
9S3160806Cr17Ni12Mo2S31600,316SUS316X5CrNiMo17-12-2X5CrNiMo17-12-2,1.4401-
10S31603022Cr17Ni12Mo2S31603,316LSUS316LX2CrNiMo17-12-2X2CrNiMo17-12-2,1.440403X17H14M3
11S3160907Cr17Ni12Mo2S31609,316H--X3CrNiMo17-13-3,1.4436-
12S3166806Cr17Ni12Mo2TiS31635,316TiSUS316TiX6CrNiMoTi17-12-2X6CrNiMoTi17-12-2,1.457108X17H13M2T

Processing:W-H,W-C

Technical Delivery Conditions:Heat treatment and pickling or protective atmosphere heat treatment



Widely used in the field of:Fluid trasport

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