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UNS S32100 STAINLESS STEEL PICKLING ANNEALED PIPE A312 TP321

UNS S32100 STAINLESS STEEL PICKLING ANNEALED PIPE A312 TP321

  • UNS S32100 STAINLESS STEEL PICKLING ANNEALED PIPE A312 TP321
  • UNS S32100 STAINLESS STEEL PICKLING ANNEALED PIPE A312 TP321
  • UNS S32100 STAINLESS STEEL PICKLING ANNEALED PIPE A312 TP321
  • UNS S32100 STAINLESS STEEL PICKLING ANNEALED PIPE A312 TP321
UNS S32100 STAINLESS STEEL PICKLING ANNEALED PIPE A312 TP321
Product Details:
Place of Origin: CHINA
Brand Name: YUHONG
Certification: ABS, GL, DNV, NK, PED, AD2000, GOST9941-81, CCS, ISO 9001-2008
Model Number: ASTM A312 TP321 THICK PIPE
Payment & Shipping Terms:
Minimum Order Quantity: 100KGS
Price: NEGOTIABLE
Packaging Details: Ply-wooden Case /Iron Case/ Bundle with plastic Cap
Delivery Time: Depends on quantity
Payment Terms: T/T, L/C AT SIGHT
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Detailed Product Description
STANDARD: ASTM A312 MATERIAL: TP321/UNS S32100/DIN 1.4541
TEST: HT,Chemical Composition, Mechnical Propety Type: Seamless
Certification: ISO,SGS,BV,ISO & SGS,ISO/CE/SGS Length: 6 Meter Or Customized
Package: Standard Seaworthy Package.
High Light:

Thick Stainless Steel Seamless Pipe

,

Seamless Steel Pipe 6 Meter

,

Industrial Stainless Steel Pipe Seamless

UNS S32100 STAINLESS STEEL PICKLING ANNEALED PIPE A312 TP321

 

Overview

 

Stainless Steel Seamless (SMLS) pipe is formed by drawing a solid billet over a piercing rod to create the hollow shell. As the manufacturing process does not include any welding, Seamless Pipes are perceived to be stronger and more reliable. Historically, seamless pipe was regarded as withstanding pressure better than other types, and was often more available than Welded Pipe.

 

Grades 321 and 347 are the basic austenitic 18/8 steel (Grade 304) stabilized by Titanium (321) or Niobium (347) additions. These grades are used because they are not sensitive to intergranular corrosion after heating within the carbide precipitation range of 425-850°C. Grade 321 is the grade of choice for applications in the temperature range of up to about 900°C, combining high strength, resistance to scaling and phase stability with resistance to subsequent aqueous corrosion.

 

Grade 321H is a modification of 321 with a higher carbon content, to provide improved high temperature strength.

 

A limitation with 321 is that titanium does not transfer well across a high temperature arc, so is not recommended as a welding consumable. In this case grade 347 is preferred - the niobium performs the same carbide stabilization task but can be transferred across a welding arc. Grade 347 is therefore the standard consumable for welding 321. Grade 347 is only occasionally used as parent plate material.

 

Like other austenitic grades, 321 and 347 have excellent forming and welding characteristics, are readily brake or roll formed and have outstanding welding characteristics. Post-weld annealing is not required. They also have excellent toughness, even down to cryogenic temperatures. Grade 321 does not polish well, so is not recommended for decorative applications.

 

Grade 304L is more readily available in most product forms, and so is generally used in preference to 321 if the requirement is simply for resistance to intergranular corrosion after welding. However, 304L has lower hot strength than 321 and so is not the best choice if the requirement is resistance to an operating environment over about 500°C.

 

ASTM A312 TP321 Chemical Composition

Grade C Mn Si P S Cr Mo Ni N Other
321
min.
max

0.08
2.00
0.75
0.045
0.030
17.0
19.0
9.0
12.0
0.10
Ti=5(C+N)
0.70
321H
min.
max
0.04
0.10
2.00
0.75
0.045
0.030
17.0
19.0
9.0
12.0
Ti=4(C+N)
0.70

 

ASTM A312 TP321 Mechanical Properties

Grade
Tensile Strength (MPa) min
Yield Strength 0.2% Proof (MPa) min
Elongation (% in 50mm) min
Hardness
Rockwell B (HR B) max
Brinell (HB) max
321
515
205
40
95
217
321H
515
205
40
95
217

 

ASTM A312 TP321 Physical Properties

Grade
Density (kg/m3)
Elastic Modulus (GPa)
Mean Coefficient of Thermal Expansion (m/m/0C)
Thermal Conductivity (W/m.K)
0-1000C
0-3150C
0-5380C
at 1000C
at 5000C
321
8027
193
16.6
17.2
18.6
16.1
22.2

 

ASTM A312 TP321 Grade Specifications

Grade
UNS No
Old British
Euronorm
Swedish SS
Japanese JIS
BS
En
No
Name
321
S32100
321S31
58B, 58C
1.4541
X6CrNiTi18-10
2337
SUS 321
321H
S32109
321S51
1.4878
X10CrNiTi18-10
SUS 321H

 

ASTM A213 TP321 Stainless Steel Seamless Pipes Application:

  • Food preparation equipment particularly in chloride environments.
  • Laboratory benches & equipment.
  • Coastal architectural panelling, railings & trim.
  • Boat fittings.
  • Chemical containers, including for transport.
  • Heat Exchangers.
  • Woven or welded screens for mining, quarrying & water filtration.
  • Threaded fasteners.
  • Springs.

 
UNS S32100 STAINLESS STEEL PICKLING ANNEALED PIPE A312 TP321 0 

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