Home > Products > Stainless Steel Pipe > Custom Seamless Stainless Steel Pipes For Fluid Transportation GB/T 14976

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

Payment Type:
L/C,T/T,D/P,Paypal,Money Gram,Western Union
Incoterm:
FOB,CFR,CIF,FCA,CPT
Min. Order:
5 Ton
Transportation:
Ocean,Land,Air
Port:
Shanghai,Ningbo,Foshan
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  • Product Description
Overview
Product Attributes

Model No.GB/T 14976

BrandTORICH

TypeWelded

CertificationUL

ApplicationBoiler Pipe

Section ShapeRound

Surface TreatmentOiled

UsagePipeline Transport

TechniqueCold Drawn

MaterialStainless Steel

Length1-12m

OD4-1200mm

WT0.3-200mm

Supply Ability & Additional Information

PackagingAnti Rust Oil Protection, in seaworthy packing material, in hexagonal bundles or in wooden box

Productivity40000 ton per year

TransportationOcean,Land,Air

Place of OriginZhejiang,China

Supply Ability50000 ton per year

CertificateISO 9001:2008 ISO 14001:2008 TS 16949

HS Code7304191000

PortShanghai,Ningbo,Foshan

Payment TypeL/C,T/T,D/P,Paypal,Money Gram,Western Union

IncotermFOB,CFR,CIF,FCA,CPT

Packaging & Delivery
Selling Units:
Ton
Package Type:
Anti Rust Oil Protection, in seaworthy packing material, in hexagonal bundles or in wooden box

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 tube Cold drawn(rolling)steel tube
Diamension Tolerance Diamension Tolerance
Ordinary Grade PA High Grade PC Ordinary Grade PA High 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 Method Diamension Tolerance
Ordinary Grade PA High 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 20878 Grade
Chemical Component(Quality Fraction)/%
No. Unified Digital Code C Si Mn P S Ni Cr Mo Cu N Others
1 13 S30210 12Cr18Ni9 0.15 1.00 2.00 0.035 0.030 8.00~10.00 17.00~19.00 - - 0.10 -
2 17 S30408 06Cr19Ni10 0.08 1.00 2.00 0.035 0.030 8.00~11.00 18.00~20.00 - - - -
3 18 S30403 022Cr19Ni10 0.030 1.00 2.00 0.035 0.030 8.00~12.00 18.00~20.00 - - - -
4 23 S30458 06Cr19Ni10N 0.08 1.00 2.00 0.035 0.030 8.00~11.00 18.00~20.00 - - 0.10~0.16 -
5 24 S30478 06Cr19Ni9NbN 0.030 1.00 2.50 0.035 0.030 7.50~10.50 18.00~20.00 - - 0.15~0.30 Nb:0.15
6 25 S30453 022Cr19Ni10N 0.08 1.00 2.00 0.035 0.030 8.00~11.00 18.00~20.00 - - 0.10~0.16 -
7 32 S30908 06Cr23Ni13 0.030 1.00 2.00 0.035 0.030 12.00~15.00 22.00~24.00 - - - -
8 35 S31008 06Cr25Ni20 0.08 1.50 2.00 0.035 0.030 19.00~22.00 24.0~26.00 - - - -
9 38 S31608 06Cr17Ni12Mo2 0.08 1.00 2.00 0.035 0.030 10.00~14.00 16.00~18.00 2.00~3.00 - - -
10 39 S31603 022Cr17Ni12Mo2 0.030 1.00 2.00 0.035 0.030 10.00~14.00 16.00~18.00 2.00~3.00 - - -
11 40 S31609 07Cr17Ni12Mo2 0.04~0.10 1.00 2.00 0.035 0.030 10.00~14.00 16.00~18.00 2.00~3.00 - - -
12 41 S31668 06Cr17Ni12Mo2Ti 0.08 1.00 2.00 0.035 0.030 10.00~14.00 16.00~18.00 2.00~3.00 - - Ti:5C~0.70


 

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

Organization type No. GB/T 20878 Grade Recommended Heat Treatment System Mechanical 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
Austenitic 1 13 S30210 12Cr18Ni9 1010℃~1150℃,cold or otherwise 520 205 35 7.93
2 17 S30408 06Cr19Ni10 1010℃~1150℃,cold or otherwise 520 205 35 7.93
3 18 S30403 022Cr19Ni10 1010℃~1150℃,cold or otherwise 480 175 35 7.90
4 23 S30458 06Cr19Ni10N 1010℃~1150℃,cold or otherwise 550 275 35 7.93
5 24 S30478 06Cr19Ni9NbN 1010℃~1150℃,cold or otherwise 685 345 35 7.98
6 25 S30453 022Cr19Ni10N 1010℃~1150℃,cold or otherwise 550 245 40 7.93
7 32 S30908 06Cr23Ni13 1010℃~1150℃,cold or otherwise 520 205 40 7.98
8 35 S31008 06Cr25Ni20 1010℃~1150℃,cold or otherwise 520 205 40 7.98
9 38 S31608 06Cr17Ni12Mo2 1010℃~1150℃,cold or otherwise 520 205 35 8.00
10 39 S31603 022Cr17Ni12Mo2 1010℃~1150℃,cold or otherwise 480 175 35 8.00
11 40 S31609 07Cr17Ni12Mo2 ≥1040℃,cold or otherwise 515 205 35 7.98
12 41 S31668 06Cr17Ni12Mo2Ti 1000℃~1100℃,cold or otherwise 530 205 35 7.90



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

No. Inspection Item Sampling Quantity Sampling Method Test Method
1 Chemical Component Take a sample of each furance GB/T 20066 GB/T 223,GB/T 11170,GB/T20123,GB/T 20124
2 Tensile Test Take a sample between two steel tubes of each batch GB/T 2975 GB/T 228.1
3 Flattening Test Take a sample between two steel tubes of each batch GB/T 246 GB/T 246
4 Flaring Test Take a sample between two steel tubes of each batch GB/T 242 GB/T 242
5 Hydraulic Test Each piece - GB/T 241
6 Ultrasonic Test Each piece - GB/T 5777-2008
7 Eddy Test Each piece - GB/T 7735-2004
8 Intercrystalline corrosion test Take a sample between two steel tubes of each batch GB/T 4334-2008 GB/T 4334-2008


Table A.1 Stainless Steel Grade Comparison

No. GB/T 20878-2007 ASTM 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 Code Grade
1 S30210 12Cr18Ni9 S30200,302 SUS302 X10CrNi18-8 X10CrNi18-8,1.4310 12X18H9
2 S30408 06Cr19Ni10 S30400,304 SUS304 X5CrNi18-9 X5CrNi18-10,1.4301 -
3 S30403 022Cr19Ni10 S30403,304L SUS304L X2CrNi19-11 X2CrNi19-11,1.4306 03X18H11
4 S30458 06Cr19Ni10N S30451,304N SUS304N1 X5CrNiN18-8 X5CrNiN19-9,1.4315 -
5 S30478 06Cr19Ni9NbN S30452,XM-21 SUS304N2 - - -
6 S30453 022Cr19Ni10N S30453,304LN SUS304LN X2CrNiN18-9 X2CrNiN18-10,1.4311 -
7 S30908 06Cr23Ni13 S30908,309S SUS309S X12CrNi23-13 X12CrNi23-13,1.4833 -
8 S31008 06Cr25Ni20 S31008,310S SUS310S X8CrNi25-21 X8CrNi25-21,1.4845 10X23H18
9 S31608 06Cr17Ni12Mo2 S31600,316 SUS316 X5CrNiMo17-12-2 X5CrNiMo17-12-2,1.4401 -
10 S31603 022Cr17Ni12Mo2 S31603,316L SUS316L X2CrNiMo17-12-2 X2CrNiMo17-12-2,1.4404 03X17H14M3
11 S31609 07Cr17Ni12Mo2 S31609,316H - - X3CrNiMo17-13-3,1.4436 -
12 S31668 06Cr17Ni12Mo2Ti S31635,316Ti SUS316Ti X6CrNiMoTi17-12-2 X6CrNiMoTi17-12-2,1.4571 08X17H13M2T

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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