| Product Information | |
| Name | Custom 450 Martensitic Ageing Treated Steels |
| Stocklist & Inventory Available: | Special Steel |
| Material Specification: | ASTM,AISI,UNS,AMS,Werkstoffe,Miscellaneous |
| Equivalent Grade: | AMS,5773,UNS S45000,ASTM A564,XM-25 |
| Condition of delivery: | Hot forging/hot rolling + annealing/normalizing + tempering/quenching + tempering |
| Surface condition | Scaled (hot working finished)/ground/rough machining/fine machining |
| Product Shape available: | Round,Flat,Square,Hexagon,Plate,Sheet,Other |
| Customs HS code: | 72221100 / 72222000 / 72223000 |
| Third-party Inspection: | SGS, TUV, or CNAS |
| Material origin From: | P. R, China. |
| Terms of price: | Ex works, CIF, CFR. |
| Mode of transportation: | Sea Shipment, Air Cargo, or International Express. |
| Certification For Exportation: | Invoice, Packing list, Bill of lading, and Origin of Certificate. |
| Min.order quantity per batch: | 3300 KG |
| Heat Treatment Practice: | Quenched 870 ℃，water/oil cooled, tempered 550 ℃, air cooled. |
| UT test standards: | ASTM E2375 / SAE AMS 2154 / EN 10228-3. |
| Meltling Process Route: | BEF + ESR / EAF + LF + VD + ESR |
| Standard Export Packing Way: | Wooden box, wooden tray with free from fumigation. |
| Production Lead Time: | Within 70 ~ 90 days after PO |
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Description
Chemical Composition
Mechanical Properties
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►GENERAL CHARACTERISTICS OF STAINLESS STEEL Custom 450 SteelThis is a martensitic, age-hardenable stainless steel with corrosion resistance similar to that of type 304 stainless steel and strength similar to that of type 410 stainless steel. It is easily fabricated and with a single-step heat treatment process will develop good strength, ductility and toughness.APPLICATIONS The alloy shows excellent resistance to oxidation up to 1200ºF (650ºC). It may further be used in sour gas oil field conditions. FORGING Custom 450 may be forged in the range 2300/1650ºF (1260/900ºC) but the optimum start temperature for ease of working and fine grain size is 2150/2100ºF (1180/1150ºC). Parts should be air cooled and annealed after forging. HEAT TREATMENT Solution treatment/annealing is carried out at 1875/1925 (1025/1050ºC), for one hour at temperature, followed by water or oil quenching for heavier sections, with air cooling sufficing for lighter sections. Age hardening /precipitation hardening is carried out for conditions H900, H950, H1000, H1050, H1150. Tensile and yield strength are increased by aging at 900/1050ºF (480/570ºC) for 4 hours followed by air cooling. The 900ºF (480ºC) treatment gives the optimum combination of strength, ductility and toughness. Overaging, up to 1150ºF (620ºC) increases ductility but reduces strength. MACHINABILITY The alloy may be machined using the same practices as employed with other martensitic stainless steels. The use of carbide tools, as opposed to high speed tools. Allows for significant increases in machining speeds and feeds. WELDABILITY The alloy may be welded using shielded fusion or resistance methods. Oxyactylene welding is not recommended due to the danger of carbon pickup. Preheating is not necessary prior to welding. The alloy is best welded in the solution annealed condition, with aging carried out immediately after welding. ►Custom 450 Steel Chemical Composition
Please contact us for more details. The technical data provided is for information only and not for design purposes.►Custom 450 Steel Mechanical Properties
Please contact us for more details. The technical data provided is for information only and not for design purposes. |
