ASTM A312 TP304H Stainless Steel Seamless Pipe,1.4948 304H Seamless pipe
We are a professional manufacturer and exporter of ASTM A312 TP304H Stainless Steel Seamless Pipe,1.4948 304H S30409 Seamless pipe in China
ASTM A312 Gr Tp304H is a high carbon version of the TP304 material. It is an austenitic stainless steel stabilized with titanium for better strength and corrosion resistance properties
ASTM A312 Gr Tp304H Pipe is used for the pressure piping systems of moderate and high temperature services. TP304H is a kind of heat and corrosion resistant steel.It has a good pipe bending,welding performance,heat and corrosion resistance,high rupture strength and stability.
ASTM A312/ASME SA312 Standard Specification for Seamless, Welded, and Heavily Cold Worked Austenitic Stainless Steel Pipes
| Specification | ASTM A312/ASME SA312 Standard Specification for Seamless, Welded, and Heavily Cold Worked Austenitic Stainless Steel Pipes |
| Standard | ASTM A312, ASME SA312 |
| Equivalents | EN 10216-5, DIN 17458, GOST 9941-81, GOST 9940-81, ASME SA213, ASTM A213, DIN 17456 |
| Materials | TP304H, S30409 |
ASTM A312 TP304H Stainless Steel Pipe Chemical Composition(%)
| A312 Grade | UNS | C | Mn | P | S | Si | Cr | Ni |
| TP304H | S30409 | 0.04-0.10 | ≤2.00 | ≤0.045 | ≤0.030 | ≤1.00 | 18.0-20.0 | 8.00-11.00 |
ASTM A312 TP304H Stainless Steel Pipe Mechanical & Physical Properties
| A312 Grade | Heat Treatment | Temperure Min.℉（℃） | Tensile Strength Ksi(MPa) | Yield Strength Ksi(MPa) | Elongation |
| TP304H | Solution | 1900(1040) | ≥75(515) | ≥30(205) | ≥35 |
Surface Condition
Pickling or shot blasting, Passivated, Black Phosphating.
Inspection and Test Procedure Of ASTM A312 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)
