S30803

S30803 Stainless Steels

S30803 - Specification & Application

Austenitic wire for metal inert gas welding. It is suitable for welding corrosion resistant 18/8 CrNi steels for devices, vessels and parts in chemical, pharmacy and cellulose industry for temperature up to 350°C. Welded material has oxidation resistance

Chemical composition(wt.%) of S30803 grade:

S30803 - Detail

Austenitic wire for metal inert gas welding. It is suitable for welding corrosion resistant 18/8 CrNi steels for devices, vessels and parts in chemical, pharmacy and cellulose industry for temperature up to 350°C. Welded material has oxidation resistance up to 800°C and ductility to -196°C. For joining with base materials: 1. Alloyed corrosion resistant: DIN X5CrNi 18 9 or WN 1.4301; DIN X2CrNi 18 9 or WN 1.4306; DIN X10CrNiNb18 9 or WN 1.4550;

The welding materials are classified according to chemical composition. The values contained in the mechanical properties are not requirements of this specification. They are obtained from weld metal specified in A5.4.

Mechanical properties of grade S30803

Proof strength Rp0.2 (MPa)	Tensile strength Rm (MPa)	Impact energy KV (J)	Elongation at fracture A (%)	Reduction in cross section on fracture Z (%)	As-Heat-Treated Condition	Brinell hardness (HBW)
837 (≥)	336 (≥)	32	14	41	Solution and Aging, Annealing, Ausaging, Q+T,etc	333

Physical properties of grade S30803

Property	Density kg/dm3	Temperature T °C/F	Specific heat J / kgK	Thermal conductivity W/mK	Electric resistance µΩ·cm	Modulus of elasticity kN/mm2	Expansion rate
274 (≥)	278 (≥)	34	41	22	Solution and Aging, Annealing, Ausaging, Q+T,etc	242
Temp. °C/°F	Creep strain limit (10000h) (Rp1,0) N/mm2	Creep rupture strength (10000h) (Rp1,0) N/mm2
981	559	835