1.4547 has a good weldability and the methods used for welding conventional austenitic steels are used. It is somewhat more sensitive to hot cracking and shall be welded with low heat input.
Filler metal of type Avesta Welding P12 or P16 are recommended. These filler metals will give a weld with a resistance to pitting corrosion. The steel can be both cold and hot formed. Due to a higher strength and alloy materials the steel is difficult to machine.
CHEMICAL COMPOSITION
| WEIGHT% | C | SI | MN | S | P | CR | NI | MO | N | CU |
| MIN. | 19,50 | 17,50 | 6,00 | 0,18 | 0,50 | |||||
| MAX | 0,020 | 0,80 | 1,00 | 0,010 | 0,030 | 20,50 | 18,50 | 6,50 | 0,22 | 1,00 |
PREN = (CR% + 3.3MO% + 16N%) ≥ 40
PRODUCT STANDARDS: EN 10272, EN 10088, ASTM A276, ASTM A240, ASTM A479, ASTM A182–11A
(CHEMICAL COMPOSITION AND MECHANICAL PROPERTIES ONLY)
APPROVALS: NACE MR0175, NORSOK M650, NORSOK M630 – MDS R11/ R13/ R14/ R15/ R17/ R18
APPLICATIONS
• High resistance to general corrosion.
• Typical applications: Pumps, valves, chokes, pipework/flanges and manifolds in oil and gas industry.
MECHANICAL PROPERTIES
| YIELD STRENGTH RP0.2 MPA | TENSILE STRENGTH RM MPA | ELONGATION [%] | HARDNESS [HB] | IMPACT CHARPY-V, -46ºC [J] | PRE | |
| ALL PRODUCTS | ≥ 300 | 650 – 850 | ≥ 35 | ≤ 260 | ≥ 45 | ≥ 40 |
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