ASTM A269 TP321 Stainless Steel Pipe
ASTM A269 TP321 Stainless Steel Pipe.A269 TP321 is a brand of the ASTM A269 Standard.ASTM A269 Standard Specification for Seamless and Welded Austenitic Stainless Steel Tubing for General Service.
Description
ASTM A269 TP321 Stainless Steel Pipe
A269 TP321 is a brand of the ASTM A269 Standard.ASTM A269 Standard Specification for Seamless and Welded Austenitic Stainless Steel Tubing for General Service.
ASTM A269 TP321 Stainless Steel Pipe Dimensional Range & Specification
Outside Diameter ：15-228mm
Wall thickness：0.4mm——20mm
Length：6000mm、12000m or specified length as required.
ASTM A269 TP321 Stainless Steel Pipe Chemical Composition(%)
| material | C | Mn | P | S | Si | Cr | Ni | Other |
| TP321 | ≤0.08 | ≤2.00 | ≤0.045 | ≤0.03 | ≤0.75 | 17.0-19.0 | 9.0-12.0 | Ti=5(C+N) 0.70 |
ASTM A269 TP321 Stainless Steel Pipe Mechanical Properties
| material | Tensile Strength(MPa) | Yield Strength(MPa) | Elongation | Hardness | |
| Rockwell B (HR B) | Brinell (HB) | ||||
| TP321 | ≥515 | ≥205 | ≥40 | ≤95 | ≤217 |
ASTM A269 TP321 Stainless Steel Pipe Physical Properties
| material | Density (kg/m3 | Elastic Modulus (GPa) | Mean Coefficient of Thermal Expansion (m/m/0C) | Thermal Conductivity (W/m.K) | Specific Heat 0-1000C (J/kg.K) | Electrical Resistivity (n.m) | |||
| 0-100℃ | 0-315℃ | 0-538℃ | at 100℃ | at 500℃ | |||||
| TP321 | 8000 | 193 | 15.9 | 16.2 | 18.4 | 16.2 | 21.5 | 500 | 740 |
Tolerance for ASTM A269 TP321 Stainless Steel Pipe
| OD,inch | OD,Tolerance inch(mm) | WT Tolerance % | Length Tolerance inch(mm) | |
| + | – | |||
| ≤1/2 | ±0.005（0.13） | ±15 | 1/8（3.2） | 0 |
| 1/2-1 1/2 | ±0.005（0.13） | ±10 | 1/8（3.2） | 0 |
| 1 1/2-3 1/2 | ±0.010（0.25） | ±10 | 3/16（4.8） | 0 |
| 3 1/2-5 1/2 | ±0.015（0.38） | ±10 | 3/16（4.8） | 0 |
| 5 1/2-8 | ±0.030（0.76） | ±10 | 3/16（4.8） | 0 |
| 8-12 | ±0.040（1.01） | ±10 | 3/16（4.8） | 0 |
| 12-14 | ±0.050（1.26） | ±10 | 3/16（4.8） | 0 |
Grade specifications for 321 grade stainless steel
| material | UNS No | Old British | Euronorm | Swedish SS | ||
| BS | En | No | Name | |||
| TP321 | S32100 | 321S31 | 58B,58C | 1.4541 | X6CrNiTi18-10 | 2337 |
Tests and Inspection Of ASTM A269 TP321 Stainless Steel Pipe
Flattening Test,Flaring Test,Hardness Test,Hydrostatic or Nondestruction Electric Test ( Eddy Current and Ultrasonic Testing)
1.100% PMI,Spectro Chemical Aanlysis Test for Raw Material
2.100% Dimension & Visual Examination
3. Mechanical Properties Test Include Tension Test,Flaring Test (For Seamless tube/pipe)/ Flange Test (For Welded Pipe & Tube), Hardness Test ,Reversed Flattening Test, Transverse-guided face bend test
4.100% Hydrostatic Test or 100% NON-DESTRUCTIVE Test (ET or UT)
5.Radiographic Test for Welded Pipe (shall be accordance with specification,or shall be as agreed upon between the purchaser and vendor)
6.Straightness Test (optional)
7.Roughness Test (optional)
8.Intergranular Corrosion Test(optional)
9.Impact Test (optional)
10.Grain Size Determinations (optional)
Our advantages：
1.Stainless steel tubes/pipes are available in different material,sizes,shapes,finishes ets.
2.Diversfied selection austenitic stainless steel martensitic stainless steel,ferritic stainless steel and duplex stainless steel pipes of your choice.
3.Our offered pipes are acknowledged by the customers for their dimensional stability resistance against corrosion & abrasion and durability.
4.With our own largest warehouse 1200-1500MTS/months stainless steel tubes/pipes are available here.