Wenzhou Zheheng Steel Industry Co.,Ltd
To provide safe and reliable high quality stainless steel ,nickel alloy pipes and fittings
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Seamless Stainless Steel Tubing ,321H ,X8CrNiTi18-10 ,1.4878, 1 inch ,1.25 inch ,1.5 inch ,2 inch ,
Zheheng steel deal with 321H ,X8CrNiTi18-10 ,1.4878, 321H Seamless Stainless Steel Tubing has different names in different standards, the European standard is 1.4878, the chemical conforms to X8CrNiTi18-10 , and in the American standard we are generally called 321H ,
referred to as ,321H Seamless Stainless Steel Tubing. Zheheng steel is a Chinese company specializing in the production of various 5 inch 6 inch 7 inchh , 321H austenitic stainless steel seamless tubing. The products are strictly in accordance with the American standard. European standard, Japanese standard implementation.
321H stainless steel seamless tubing is used in field open-air machines for chemical, coal and petroleum industries with high resistance to intergranular corrosion, heat-resistant parts for building materials and parts with difficult heat treatment.
A269 TP321H Stainless steel seamless tubing Chemical Composition (Unit %) according to ASTM standard :
| Grade | A213 TP321H |
| UNS Grade | S32109 |
| Carbon % Max | 0.04-0.1 |
| Manganese % | 2 |
| Phosphorus % Max | 0.045 |
| Sulfur % Max | 0.03 |
| Silicon % Max | 1 |
| Chromium % | 17.00-19.00 |
| Nickel % | 9.0-12.0 |
| Molybdenum % | … |
| Nitrogen % Max | … |
| Niobium % | … |
| Titanium % | 4*(C+N)-0.7 |
| Others Elements % | … |
| Stainless Pipe Grade | A213 TP321H |
| UNS Grade | S32109 |
| Tensile Strength Mpa | 515 |
| Yield Strength Mpa | 205 |
| Elongation % | 35 |
| Hardness Brinell HBW max | 192 |
| Hardness Vickers HV max | 200 |
| Hardness Rockwell HRB max | 90 |
Our Inspection and Test Procedure:
| 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 |
| 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) |
| NOTES : ALL THE TESTS AND INSPECTION RESULT NEED TO BE SHOWED IN REPORTS ACCORDING TO STANDARD AND SPECIFICATION. |
our products Austenitic Seamless Stainless Steel Tubing ,321H ,X8CrNiTi18-10 ,1.4878 packing show:
