Stainless Steel Grade 2507 - Super Duplex Anti-Corrosion

 

Data Tables

Chemical Composition:

	Cr	Ni	Mo	Co	Nb (+Ta)	Ti	V	W	Cu	C	Mn	N	Si	P	S	Fe	Al
Min	24.50	6.00	3.00								0.50	0.24	0.10
Max	26.00	8.00	5.00						0.50	0.03	1.20	0.32	0.80	0.035	0.020	Bal

Mechanical Properties:

0.2% Proof Stress	550 N/mm2	79.8 ksi
Tensile Strength	800 N/mm2	116 ksi
Elongation, 5.65√S0	25%
Reduction of area	45%
Hardness (Brinell)	<270
Impact Strength (Room Temp)	80J
Impact Strength (-46oC)	Longitidinal 45J (35J min)
	Transverse 45J (35J min)

Notes:

Testing shall be carried out in accordance with ASTM A370 or EN ISO 6892-1 (tensile), EN ISO 6506-1 (hardness)

Minimum properties quoted (tested at room temperature in a longitudinal direction)

Testing performed on each melt of material per heat treatment batch

Hardness shall be in accordance with NACE MR 1075 with a maximum HRC of 25

ASTM G48A corrosion test (at 50&deg;C) No pitting and < 3.0g/m² weight loss (ASTM specification < 4.0g/m²)

Ferrite content 35-55%

Microstructure certified free from grain boundary carbides, sigma, chi and laves phases

Physical Properties:

Density (Kg/m3)	7810
Magnetic Permeability (20°C)	33
Young's Modulus (kN/mm2)	199
Specific Electrical Resistance, 20°C (µΩ.m)	0.8
Mean coefficient of thermal expansion, 20-300°C (m/m/oC)	11.1 x 10-6
Specific Heat, 20°C (J/kg.K)	475
Thermal conductivity, 20°C (W/m.K)	14.2