321S51(1010)

321S51(1010) Stainless Steels to BS 3059-2

321S51(1010) - Specification & Application

• BS 3059-2 - Steel boiler and superheater tubes. Specification for carbon, alloy and austenitic stainless steel tubes with specified elevated temperature properties
• BS 3605-1 - Austenitic stainless steel pipes and tubes for pressure purposes. Specification for seamless tubes

Austenitic stainless steel pipes and tubes for pressure purposes. Specification for seamless tubes

Chemical composition(wt.%) of 321S51(1010) grade: to BS 3059-2

321S51(1010) - Detail

Austenitic stainless steel pipes and tubes for pressure purposes. Specification for seamless tubes

Mechanical properties of grade 321S51(1010) BS 3059-2

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)
813 (≥)	729 (≥)	14	14	24	Solution and Aging, Annealing, Ausaging, Q+T,etc	411

Physical properties of grade 321S51(1010) BS 3059-2

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
246 (≥)	179 (≥)	21	43	13	Solution and Aging, Annealing, Ausaging, Q+T,etc	114
Temp. °C/°F	Creep strain limit (10000h) (Rp1,0) N/mm2	Creep rupture strength (10000h) (Rp1,0) N/mm2
778	648	787