1.4021 materials chrome steel supplier
We produce ASTM/ASME Grade 304, Grade 304L,304h, 316, 316L, 316H, 316TI, 321, 321H, 309S, 309H, 310S, 310H, 410S, 2205, 904L, 2507, 254, gh3030, 625, 253MA, S30815, 317L, Type 317, 316lN, 8020, 800, 800H, C276, S32304 and others special requirement stainless steel grade.
Is ferrite FCC or BCC?
Try the magnet test. If the magnet sticks it cannot be 316 and might be 304. If the magnet doesn’t stick it could be either 316 or cold worked 304, so heat the piece to about 800 °C, let air-cool and try again with magnet. If it sticks now its 304 SST.
Alloy 2205 is a 22% Cr duplex stainless steel, provided within the solution annealed situation. As a duplex chrome steel, it combines the fascinating facet of properties of each austenitic and ferritic grades. The high chromium, molybdenum and nitrogen contents results in a Pitting Resistance Equivalent number (PREN) of 33-34. Alloy 254, is a excessive alloy austenitic chrome steel supplied in the scorching labored and annealed situation. Significant additions of Mo, Ni and Cu gives this alloy a good resistance to pitting and crevice corrosion, especially in environments containing halide ions e.g. chloride, bromide and fluoride options.
Forms Of Duplex 2205 Available At Mega Mex
Stress corrosion cracking happens when stainless steels are subjected to tensile stress, whereas in contact with solutions containing chlorides. Increasing temperatures additionally enhance the susceptibility of stainless steels to stress corrosion cracking. Compared with austenitic stainless steels, Sandvik SAF 2205™ has larger proof and a tensile strengths. This must be borne in mind when increasing tubes into tube-sheets. Normal increasing strategies can be utilized, however the enlargement requires greater initial pressure and must be undertaken in one operation.
That is, within the annealed condition they’re essentially freed from ferrite, which is magnetic. Cast products of those alloys sometimes have some ferrite current. These alloys additionally form some ferrite when they are chilly labored or work hardened. Ferrite can be detrimental to corrosion resistance in some environments. There are additionally purposes where magnetic traits intervene with efficiency of the end product.
- Alloy 2205 is a 22% Cr duplex chrome steel, equipped in the answer annealed situation.
- The addition of Mo supplies the product with much improved corrosion resistance in contrast with Alloy 304, notably with respect to pitting and crevice corrosion in chloride environments.
- Alloy 316L is an austenitic chrome steel provided in the scorching labored and annealed condition.
Our stainless production range
Often referred to as the work horse grade, 2205 is probably the most widely used grade in the duplex household of stainless steels. In the identical means as the resistance to pitting can be related to the chromium, molybdenum and nitrogen contents of the metal, so can the resistance to crevice corrosion.
The chosen testing circumstances have yielded outcomes that match well with practical expertise. Thus, Sandvik SAF 2205™ can be used at considerably greater temperatures and chloride contents than ASTM TP304 and ASTM TP316 without pitting.
Ferralium® 255 – FG46 is a brilliant duplex stainless-steel supplied in the strain hardened situation (Condition S). It is optimised for fastener purposes, matching the mechanical properties of the B7 grade alloy carbon steel which is most commonly used for high-strain bolting applications. Fermonic® 50 – Annealed (also known as Nitronic® 50 – a trademark owned by AK Steel Corporation) is a nitrogen-strengthened austenitic chrome steel provided in the annealed condition. It supplies virtually double the yield strength of frequent austenitic stainless steel grades similar to Alloy 304 and Alloy 316L, providing the potential to scale back part measurement and therefore weight and price. The mixture of chromium, molybdenum and nitrogen convey the great resistance of 2205 to chloride pitting and crevice corrosion.
Astm Specifications
Duplex 2205 is a nitrogen enhanced duplex chrome steel that was developed to combat frequent corrosion issues encountered with the 300 series stainless steels. “Duplex” describes a family of stainless steels which are neither totally austenitic, like 304 stainless, nor purely ferritic, like 430 stainless. The construction of 2205 duplex chrome steel consists of austenite pools surrounded by a continuous ferrite part. In the annealed situation, 2205 incorporates approximately 40-50% ferrite.
We have thousands tons stock of stainless steel sheet and coil with various size and grade,mainly include austenitic stainless steel, martens stainless steel (including precipitation hardened stainless steel sheet & coil), ferritic stainless steel, and duplex stainless steel.
Characteristics of Stainless Steel Sheet and Plate:
High corrosion resistance
High strength
High toughness and impact resistance
Temperature resistance
High workability, including machining, stamping, fabricating and welding
Smooth surface finish that can be easily clean