Mechanical Properties
Room Temperature Tensile Properties
Minimum mechanical properties of the stabilized Alloys 321 and 347 chromium-nickel grades in the annealed condition (2000°F [1093°C], air cooled) are shown in the table.

IntergranularCorrosion
Alloys 321 and 347 have been developed for applications where the unstabilized chromium-nickel steels, such as Alloy 304, would be susceptible to intergranular corrosion.

Heat Treatment
The annealing temperature range for Alloys 321 and 347 is 1800 to 2000°F (928 to 1093°C). While the primary purpose of annealing is to obtain softness and high ductility, these steels may also be stress relief annealed within the carbide precipitation range 800 to 1500°F (427 to 816°C), without any danger of subsequent intergranular corrosion. Relieving strains by annealing for only a few hours in the 800 to 1500°F (427 to 816°C) range will not cause any noticeable lowering in the general corrosion resistance, although prolonged heating within this range does tend to lower the general corrosion resistance to some extent. As emphasized, however, annealing in the 800 to 1500°F (427 to 816°C) temperature range does not result in a susceptibility to intergranular attack.

Value Added Processes

• Plasma Cutting
• Abrasive Waterjet Cutting
• Machine cut
• Sawcut
• Drilling,Taping
• Counterboring
• Milling
• Polishing
• Flattening
• Rolled & Welding Rings

Certificates: EN10204 3.1 / DIN 50049 3.1 / ISO 10474 3.1 Mill Test Certificate, NACE MR-0103 / NACE MR-0175

Third Party Inspection Agency : LRS (Lloyd's Register), GL (Germanischer Lloyd), BV (Bureau Veritas), DNV (Det Norske Veritas), ABS (American Bureau of Shipping), SGS, TUV, RINA, IRS, EIL, CEIL.

Available Specifications
ASTM A240, ASTM A240M, ASTM A167, ASTM A167M Grade 321, 321H, 347, 347H ASTM A 240, ASTM A 240M, ASTM A 167, ASTM A 167M Gr. 321, 321H, 347, 347H ASTM SA240, ASTM SA240M, ASME SA240, ASTM SA167, ASTM SA167M, ASME SA167 Grade 321, 321H, 347, 347H ASTM SA 240, ASTM SA 240M, ASME SA 240, ASTM SA 167, ASTM SA 167M, ASME SA 167 Gr. 321, 321H, 347, 347H ASTM A240, ASTM A240M, ASTM A167, ASTM A167M TYPE 321, 321H, 347, 347H ASTM A 240, ASTM A 240M, ASTM A 167, ASTM A 167M TYPE 321, 321H, 347, 347H ASTM SA240, ASTM SA240M, ASME SA240, ASTM SA167, ASTM SA167M, ASME SA167 TYPE 321, 321H, 347, 347H ASTM SA 240, ASTM SA 240M, ASME SA 240, ASTM SA 167, ASTM SA 167M, ASME SA 167 TYPE 321, 321H, 347, 347H Material number 1.4541, 1.4541, DIN -X6CrNiTi18-10, X6CrNiTi18-10, SS321, SS-321, 321 Werkstoff number 1.4541, 1.4541, DIN -X6CrNiTi18-10, X6CrNiTi18-10, SS321, SS-321, 321 Material number 1.4550, 1.4550, DIN - X6 CrNiNb 1810, X6 CrNiNb18-10, SS347, SS-347, 347 Werkstoff number 1.4550, 1.4550, DIN - X6 CrNiNb 1810, X6 CrNiNb18-10, SS347, SS-347, 347 AISI-321, AISI-321H, AISI-347, AISI-347H AISI 321, AISI 321H, AISI 347, AISI 347H UNS S32100, UNS 32100, UNS S32109, UNS 32109 UNS S34700, UNS 34700, UNS S34709, UNS 34709 UNS-S32100, UNS-32100, UNS-S32109, UNS-32109 UNS-S34700, UNS-34700, UNS-S34709, UNS-34709

Stock Available
S.S.Plate as per ASTM A240M Type - 347

• Size:1250 X 2500 X 6 MM - 12 NOS
• Size:1250 X 2500 X 16 MM - 6 NOS
• Size:1250 X 2500 X 25 MM - 3 NOS