904L stainless steel and 316L stainless steel difference:
1, copper content is different: 904L stainless steel contains a certain amount of copper, but 316L stainless steel does not contain copper.
2, corrosion and wear resistance is different: 904L stainless steel than 316L stainless steel in corrosion resistance and wear resistance is stronger.
3, the weight is different: 904L stainless steel containing molybdenum, nickel, copper is higher than 316L stainless steel, and the proportion of these three metals are larger than iron. So in terms of component, the same volume of 904L stainless steel will be much heavier than 316L stainless steel.
4. They are used differently:
904l stainless steel uses: widely used in petroleum, petrochemical equipment, such as petrochemical equipment reactor; Sulfuric acid storage and transportation equipment, such as heat exchanger, etc.; Power plant flue gas desulfurization device, the main use parts are: absorption tower body, flue, door plate, internal parts, spray system, etc.
316l stainless steel is used in seawater treatment device, seawater heat exchanger, paper industry equipment, sulfuric acid, nitric acid equipment, acid, pharmaceutical industry and other chemical equipment, pressure vessels, food equipment.
What is 17-4PH Stainless Steel ?
17-4PH is martensitic precipitation-hardened stainless steel. With high strength, high hardness, good welding performance and corrosion resistance. It has been widely used in valve, shaft and chemical fiber industry and high strength parts with certain corrosion resistance requirements.
| Item Name |
Stainless Steel bar/rod |
| Material Grade |
201,202,301,302,303,304,304L,316,316L,321,308,308L,309,309L,309S,309H,310,310S ,410,420,430,2205,2507,409 etc |
| size |
1) Hot-rolled black bar: diameter 10-130mm |
| 2) Hot forged black bar: diameter 110-400mm |
| 3) Acid round bar: diameter 5-400mm |
| 4) Cold drawn bright bar: diameter 1-55mm |
| 5) Grinded bright bar: 5-150mm |
| 6) Polishing bright round bar: diameter 5-400mm |
| Finish Surface |
Black, peeled (K12), cold drawn, turned and polished (H10, H11), precision ground (H9, H8) |
| Processing Services |
Cutting, Bending, Titanizing, etc... |
| Quality Quarantee |
MTC will be supplied along with delivery ; Accept SGS or Any third party inspection |
| Certification |
ISO9001,BV, SGS,EN3.1, EN3.2 etc. |
| Price Terms |
FOB, EXW, CIF, CFR,DDU |
| MOQ |
1 Ton or smaller trial order to inspect the quality |
| Payment term |
T/T, LC |
| Packing |
Export sea worthy packing with each bundle tied and protected , Or per clients' requirements. |
| Application |
Widely used in petroleum, foodstuff, chemical industry, construction, electric power,
nuclear, energy, machinery, biotechnology,paper making, shipbuilding, boiler fields. |
