3S.61

3S.61 Stainless Steels to BS 3S 61 (1964)

3S.61 - Specification & Application

• BS 3S 61 (1964) - Specification for aircraft material. 12 per cent chromium corrosion-resisting steel (35/45 tonf/sq in: limiting ruling section 6 in)

Specification for aircraft material. 12 per cent chromium corrosion-resisting steel (35/45 tonf/sq in: limiting ruling section 6 in)

Chemical composition(wt.%) of 3S.61 grade: to BS 3S 61 (1964)

3S.61 - Detail

Specification for aircraft material. 12 per cent chromium corrosion-resisting steel (35/45 tonf/sq in: limiting ruling section 6 in)

Mechanical properties of grade 3S.61 BS 3S 61 (1964)

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)
344 (≥)	332 (≥)	24	44	43	Solution and Aging, Annealing, Ausaging, Q+T,etc	321

Physical properties of grade 3S.61 BS 3S 61 (1964)

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
442 (≥)	397 (≥)	31	42	33	Solution and Aging, Annealing, Ausaging, Q+T,etc	434
Temp. °C/°F	Creep strain limit (10000h) (Rp1,0) N/mm2	Creep rupture strength (10000h) (Rp1,0) N/mm2
485	116	668