Payment & Shipping Terms:
|Steel Number:||1.4438||Technique:||Seamless Welding Butt|
|Products:||Stainless Steel Pipe Fittings||Connection:||Butt-Welding|
|Package:||Plywood Box Or Pallet||Application:||Pharmacy,beer,food,dairy,brewing, Beverage, Water Treatment,chemical|
317L butt welding pipe fitting,
1.4438 butt welding pipe fitting,
S31703 weldable pipe fittings
317L/X2CrNiMo18-15-4/1.4438 Stainless Steel Pipe Fittings seamless butt welding
"zheheng steel" produces and supply 317L/X2CrNiMo18-15-4/1.4438 Stainless Steel Pipe Fittings., Non-standard pipe fittings are also produced according to customer requirements. The company strictly implements ASTM B16.9 / B16.5,ASTM A403 SH3408, SH3409, DIN2605, EN10253, BS1965, JISB2312 and other standards for production.
317L (00Cr19Ni13Mo3, SUS317L) alloy is austenitic stainless steel based on molybdenum. Compared with conventional chromium-nickel austenitic stainless steel such as 304 alloy, it has stronger chemical resistance. In addition, compared with conventional stainless steel, 317L alloy has higher ductility, stress corrosion resistance, compressive strength and high temperature resistance. It is a low carbon grade or L grade. This grade has anti-sensitization properties during welding and heat treatment.
317L mechanical properties: YS (Mpa) ≥176, TS (Mpa) ≥480, EL (%) ≥40, Hv ≤200
317L chemical composition: carbon (C) ≤0.030, manganese (Mn) ≤2.00, nickel (Ni) 11.0 ～ 15.0, silicon (Si) ≤1.00, phosphorus (P) ≤0.045, sulfur (S) ≤0.030, chromium (Cr ) 18.0 ～ 20.0, molybdenum (Mo) 3.0 ～ 4.0
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.|
Why choose us:
1. All pipe fittings are strictly implemented in accordance with the standards, accept any third-party inspection, and return service.
2. Before leaving the factory, 100% dimensional inspection, 100% spectral test, mechanical and mechanical performance test, pickling, pickling process are mainly aimed at the removal of surface grease and harmful substances, complete surface passivation to prevent oxidation. Some suppliers have not implemented ( Because the surface is not visible to the naked eye after sandblasting) annealing and solid solution (heat treatment), many goods on the market are not heat-treated. When the pipe fittings are in some cold or hot environments, the seam will slowly crack if it is not heat-treated. This process is invisible to the naked eye, surface sanding (many relatively inexpensive processes on the market), bevel ends, etc.
3. Normally, the individual weight of our company's pipe fittings is heavier than that on the market, (Ensure the back arc thickness) to avoid the parts of the same wall thickness that cannot be seen by the naked eye after the processing The pressure is guaranteed, because many suppliers choose the material to the maximum limit in order to minimize the cost.
1. Are you a trading company or a manufacturer?
Manufacturer and trading.
2. What are your main products?
All kinds of elbows, tees, caps, flanges, and steel pipes, etc with different stainless steel,nickel alloy materials.
3. Do you provide free samples?
We'd like to provide samples for your confirm, but we don't pay the cost of freight.
4. Why should I choose you?
* Contact us with your detailed inquiry, you will be replied within 6 hours.
* You are promised to obtain the best quality, price, and service.
* Wide excellent experiences with after-sale service.
* Every process will be checked by responsible QC which ensures every product's quality.
Contact Person: sales