BEST PIPELINE EQUIPMENT CO.,LTD
| Steel Number | 1.4462 |
| Type | wn forged flanges |
| Forged material | F51 |
| Material | UNS S31803 |
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Product Specification
| Steel Number | 1.4462 | Type | wn forged flanges |
| Forged material | F51 | Material | UNS S31803 |
| High Light | UNS S31803 welding neck flanges ，1.4462 wn flange forged ，F51 forged welding neck flanges | ||
Material to UNS S31803 (and related specifications) is a duplex stainless steel featuring a microstructure of 50:50 austenite and ferrite. This steel combines excellent mechanical strength (typically over 480 MPa yield strength) with good ductility and moderate to high corrosion resistance in various environments.
By agreement, the alloy can be supplied with a PREN (Pitting Resistance Equivalent) >34, ensuring maximum pitting corrosion resistance for this grade. The steel also offers superior resistance to stress corrosion cracking and maintains good notch ductility at ambient and subzero temperatures.
These properties make this duplex steel an effective alternative to 300 series stainless steels in applications requiring higher mechanical strength, reduced weight, and/or enhanced stress corrosion cracking resistance.
The machining and welding of this duplex stainless steel grade present no particular challenges. Comprehensive guidance notes are available upon request.
| Property | Description |
|---|---|
| R eH | Minimum yield strength / Mindestwert der oberen Streckgrenze / Limite d'elasticite minimale |
| R m | Tensile strength / Zugfestigkeit / Resistance a la traction |
| A | Minimum elongation / Mindestwert der Bruchdehnung / Allongement minimal |
| J | Notch impact test / Kerbschlagbiegeversuch / Essai de flexion par choc |
| Code | Description |
|---|---|
| +A | Soft annealed |
| +AC | Annealed to achieve spheroidization of the carbides |
| +AR | As rolled |
| +AT | Solution annealed |
| +C | Cold drawn / hard |
| +CR | Cold rolled |
| +FP | Treated to ferrite-pearlite structure and hardness range |
| +I | Isothermal annealing |
| +LC | Cold drawn / soft |
| +M | Thermo mechanical rolling |
| +N | Normalized |
| +NT | Normalized and tempered |
| +P | Precipitation hardened |
| +PE | Peeled |
| +QA | Air quenched and tempered |
| +QL | Liquid quenched and tempered |
| +QT | Quenched and tempered |
| +S | Treated to improve shearability |
| +SH | As rolled and turned |
| +SR | Cold drawn and stress relieved |
| +T | Tempered |
| +TH | Treated to hardness range |
| +WW | Warm worked |
| +U | Untreated |
Company Details
Business Type:
Manufacturer,Distributor/Wholesaler,Agent,Importer,Exporter,Trading Company,Seller,Other
Year Established:
2010
Total Annual:
1000000-5000000
Employee Number:
116~209
Ecer Certification：
Verified Supplier
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