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GB/T14976 ASTM A269 A312 Seamless Stainless Steel Pipes For Fliuid Transport

Basic Information
Place of Origin: ZHEJIANG,CHINA
Brand Name: TORICH
Certification: ISO9001:2008,ISO14001:2008
Model Number: GB/T14976 ASTM A269 A312
Minimum Order Quantity: 0.5Ton
Price: negotiable
Packaging Details: packing in wooden boxes or in hexagonal bundles
Delivery Time: 30-35work days
Payment Terms: L/C, D/A, , D/P, T/T, Western Union, MoneyGram
Supply Ability: 20000T/year
Detail Information
Product Name: ASTM A269 A312 Seamless Stainless Steel Pipes For Fliuid Transport Material: 200 Series/300 Series/400series
Shape: Round Section Grade: 201/202/304 /304L/316/316L321/310s/410/420/430/440/439ect
Surface: Pickling Finish: Heat Treatment
Technique: Cold Rolled Hot Rolled Length: 1-12M
OD: 3-420mm WT: 0.5-50mm
High Light:

stainless tube steel

,

large diameter stainless steel tube


Product Description

Product Name:TORICH GB/T14976 ASTM A269 A312 Seamless Stainless Steel pipes for fliuid transport

Standard: GB/T14976 ASTM A269 A312

OD: 3-420mm

WT: 0.5-50mm

Length: 1-12m or according to customers' actual application and production.

Application:for fliuid transport

Steel Grade:201/202/304 /304L/316/316L321/310s/410/420/430/440/439ect

Technology:Cold Rolled Hot Rolled Cold Drawn

Characteristic:

Good concentricity

Good surface quality

Good OD and ID tolerance

High Precision

Stable quality

Smooth Roughness

TORICH QUALITY ASSURANCE

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

 

GB/T14976 ASTM A269 A312 Seamless Stainless Steel Pipes For Fliuid Transport 0 GB/T14976 ASTM A269 A312 Seamless Stainless Steel Pipes For Fliuid Transport 1

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