SGS certificate S31803 2205 1.4462 duplex stainless steel plate sheet     

Product Description

 

Stainless steels are a family of iron based alloys that contain a minimum of 10.5% chromium (CR). The presence of chromium creates an invisible surface film that resists oxidation and makes the material passive or corrosion resistant (stainless). There are multiple families of stainless steel which are designed for various applications and uses. Stainless grades can be further modified to meet various processing, corrosion, temperature and strength conditions.

1.4462 (UNS S31803/ S32205 - F51 - SS2377)
By using 1.4462 (UNS S31803/ S32205 - F51 - SS2377) you get a stainless duplex steel that has high resistance to various types of corrosion. It has good weldability and can be welded by several methods. The steel is widely used e.g. for propeller shafts, pump parts and piston rods.

The steel grade 1.4462 (also called UNS S31803/ S32205 , F51 and SS2377) is a stainless acid resistant duplex steel  with high strength and extremely good corrosion properties. Due to the duplex structure of the steel (austenitic-ferritic) and high contents of chrome and molybdenium it has very high resistance to pitting corrosion, crevice corrosion, uniform corrosion, corrosion fatigue and stress corrosion cracking. It also has high energy absorption and low thermal expansion.
Some typical application areas for 1.4462 are:

• Propeller- and Pumpshafting
• Pump- and Valveparts
• Pistons
• Spindles
• Stirrers
• Bolts
• Nuts

Good weldability
1.4462 has good weldability and can be welded by most of the common welding methods e.g. Shielded metal arc welding, Gas tungsten arc welding, Plasma arc welding and Submerged-arc welding. You shall use Avesta Welding 2205 when you weld or something similar as filler metal. The steel can be both cold and hot formed. It is more difficult to machine than common austenitic steel. Machining shall be performed with high-speed tools.
Certificate
The steelworks has certificate as an approved material supplier of this steel grade from ABS, BV, DNV, GL, Lloyd's and RINA. 1.4462 is also an approved material according to NACE MR0175 which is an American standard within the oil- and gas industry.

Other common 300 series Stainless steel material introduction 

1.4571 (316Ti)
Stainless steel types 1.4401 and 1.4404 are also known as grades 316 and 316L respectively. Grade 316 is an austenitic grade second only to 304 in commercial importance.
316 stainless steel contains an addition of molybdenum that gives it improved corrosion resistance. This is particularly apparent for pitting and crevice corrosion in chloride environments.
316L, the low carbon version of 316 stainless steel, is immune to grain boundary carbide precipitation (sensitisation). This makes it suited to use in heavy gauge (over about 6mm) welded components.
For elevated temperature applications the high carbon variant, 316H stainless steel and the stabilised grade 316Ti stainless steel should be employed.
The austenitic structure of 316 stainless steel gives excellent toughness, even at cryogenic temperatures.
Property data given in this document is typical for bar products covered by EN 10088-3:2005. ASTM, EN or other standards may cover products sold. It is reasonable to expect specifications in these standards to be similar but not necessarily identical to those given in this datasheet.

Stainless steel grade 316Ti contains a small amount of titanium. Titanium content is typically only around 0.5%. The titanium atoms stabilise the structure of the 316 at temperatures over 800°C. This prevents carbide precipitation at the grain boundaries and protects the metal from corrosion. The main advantage of 316Ti is that it can be held at higher temperatures for a longer period without sensitisation (precipitation) occurring. 316Ti retains physical and mechanical properties similar to standard grades of 316.

Stainless steel 347 grade:

Alloy 347 is a stabilized, austenitic, chromium steel containing columbium which allows for the elimination of carbide precipitation, and, consequently, intergranualr corrosion. Alloy 347 is stabilized by the additions of chromium and tantalum and offers higher creep and stress rupture properties than alloy 304 and 304L which may also be used for exposures where sensitization and intergranualr corrosion are of concern. The addition of columbium also allows Alloy 347 to have excellent corrosion resistance, even superior to that of alloy 321. 347H is the higher carbon composition form of Alloy 347 and demonstrates improved high temperature and creep properties.

Stainless steel 321/321H grade.

Alloy 321 (UNS S32100) is a titanium stabilized austenitic stainless steel with good general corrosion resistance. It has excellent resistance to intergranular corrosion after exposure to temperatures in the chromium carbide precipitation range of 800 - 1500°F (427 - 816°C). The alloy resists oxidation to 1500°F (816°C) and has higher creep and stress rupture properties than alloys 304 and 304L. It also possesses good low temperature toughness.

Alloy 321H (UNS S 32109) is the higher carbon (0.04 - 0.10) version of the alloy. It was developed for enhanced creep resistance and for higher strength at temperatures above 1000oF (537°C). In most instances, the carbon content of the plate enables dual certification.

Alloy 321 cannot be hardened by heat treatment, only by cold working. It can be easily welded and processed by standard shop fabrication practices.

Stainless steel 309 309S 310 310S grade:

The 309 stainless steel has a higher corrosion resistance and strength compared to 304 stainless steel. This product is versatile and known for its high heat treatment capabilities.

Great ductility, weldability, and high-temperature properties make 310 Stainless Steel the ideal choice for projects that require service at temperatures up to 1150 degrees Celsius. Grade 310 resists oxidation and is also used at temperatures up to 1040 degrees Celsius intermittently. Similar to other austenitic steel grades, toughness down to cryogenic temperatures is another feature of 310.

Other common 300series grade 
Stainless steel 304/304L Grade : 

Type 304/304L is the modern version of "18-8" stainless steel containing approximately 18% chromium and 8% nickel and is the most commonly specified stainless steel used throughout the world. Type 304/304L is a versatile, general purpose stainless steel with good resistance to atmospheric corrosion, and to many chemicals and food and beverages. These grades can be specified in the annealed condition where they have very good formability. Higher nickel versions can be specified to enhance multi-stage deep drawing characteristics. Higher strength, cold-worked conditions can also be specified for Type 304/304L for spring type applications. Type 304/304L is non-magnetic in the annealed condition but may become slightly magnetic as a result of cold working.

Type 304L can be dual certified as 304 when the composition meets the lower carbon limit of 304L and the slightly higher strength levels of 304. Type 304L should be specified for welded applications as the low carbon version eliminates chromium carbide precipitation and enhances the corrosion resistance in the as-welded condition.

Another common material Stainless steel 316/316L Grade : 

Alloy 316/316L is molybdenum-bearing austenitic stainless steel. The higher nickel and molybdenum content in this grade allows it to demonstrate better overall corrosion resistant properties than 304, especially with regard to pitting and crevice corrosion in chloride environments. In addition, Alloy 316/ 316L provides excellent elevated temperature tensile, creep and stress-rupture strengths, as well as outstanding formability and weldability. 316L is the lower carbon version of 316 and is immune from sensitization; therefore, it is very frequently used in heavy gauge welded components.
Specifications: UNS S31600 / S31603

Chemical Composition&Mechanical Properties

Chemical Composition (wt%) limits as specified in ASTM A240 and ASME SA240*

Mechanical property requirements for annealed product as specified in ASTM A240 and ASME SA240

Other common Specification for stainless steel sheet

SGS certificate S31803 2205 1.4462 duplex stainless steel plate sheet price per kg

SGS certificate S31803 2205 1.4462 duplex stainless steel plate sheet price per kg

SGS certificate S31803 2205 1.4462 duplex stainless steel plate sheet price per kg

SGS certificate S31803 2205 1.4462 duplex stainless steel plate sheet price per kg

SGS certificate S31803 2205 1.4462 duplex stainless steel plate sheet price per kg