ASTM A269 TP304H Stainless Steel Pipe
ASTM A269 TP304H Stainless Steel Pipe.A269 TP304H 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 TP304H Stainless Steel Pipe
A269 TP304H 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 TP304H 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 TP304H Stainless Steel Pipe Chemical Composition(%)
| material | C | Mn | P | S | Si | Cr | Ni |
| TP304H | 0.04-0.10 | ≤2.00 | ≤0.045 | ≤0.03 | ≤0.75 | 18.0-20.0 | 8.0-11.0 |
ASTM A269 TP304H Stainless Steel Pipe Mechanical Properties
| material | Tensile Strength(MPa) | Yield Strength(MPa) | Elongation | Hardness | |
| Rockwell B (HR B) | Brinell (HB) | ||||
| TP304H | ≥515 | ≥205 | ≥40 | ≤92 | ≤201 |
ASTM A269 TP304H 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℃ | |||||
| TP304H | 8000 | 193 | 15.9 | 16.2 | 18.4 | 16.2 | 21.5 | 500 | 740 |
Tolerance for ASTM A269 TP304H 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 304H grade stainless steel
| material | UNS No | Old British | Euronorm | Swedish SS | ||
| BS | En | No | Name | |||
| TP304H | S30409 | 304S51 | 1.4948 | X6CrNi18-11 | ||
Tests and Inspection Of ASTM A269 TP304H 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)
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