Tianjin Bohai Metal Corporation

403 Stainless Steel Sheet

This straight chromium stainless steel offers reasonable corrosion resistance and high mechanical characteristics. The 403 Series offers heat resistance and a scaling temperature of about 1300°F.

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Commodity name: 403 Stainless Steel Sheet

This straight chromium stainless steel offers reasonable corrosion resistance and high mechanical characteristics. The 403 Series offers heat resistance and a scaling temperature of about 1300°F.

Product Information

This straight chromium stainless steel offers reasonable corrosion resistance and high mechanical characteristics. The 403 Series offers heat resistance and a scaling temperature of about 1300°F. It is a corrosion and heat resistant 12% Cr martensitic stainless steel. This alloy offers a wide range of mechanical properties that are obtainable by appropriate heat treatments. It is easily hardened by oil, fan or air cooling and may be tempered at temperatures of up to 1350°F (732°C) to improve fracture toughness. Oil or fan cooling is required in thicker sections

Technical data

Chemical Composition

The chemical composition of grade 403 stainless steels outlined in the following table.

Element	Content (%)
Iron, Fe	86
Chromium, Cr	12.3
Manganese, Mn	1.0
Silicon, Si	0.50
Carbon, C	0.15
Phosphorous, P	0.040
Sulfur, S	0.030
Carbon, C	0.15

Physical Properties

The following table shows the physical properties ofgrade 403 stainless steel.

Properties	Metric	Imperial
Density	7.80 g/cm3	0.282 lb/in3

Mechanical Properties

The mechanical properties of grade 403 annealedstainless steel are displayed in the following table.

Properties	Metric	Imperial
Tensile strength	485 MPa	70300 psi
Yield strength (@strain 0.200 %)	310 MPa	45000 psi
Fatigue Strength (annealed, @diameter 25mm/0.984 in)	275 MPa	39900 psi
Shear modulus (typical for steel)	76.0 GPa	11000 ksi
Elastic modulus	190-210 GPa	27557-30458 ksi
Poisson's ratio	0.27-0.30	0.27-0.30
Elongation at break (in 50 mm)	25.00%	25.00%
Izod impact (tempered)	102 J	75.2 ft-lb
Hardness, Brinell (converted from Rockwell B hardness)	139	139
Hardness, Knoop (converted from Rockwell B hardness)	155	155
Hardness, Rockwell B	80	80
Hardness, Vickers (converted from Rockwell B hardness)	153	153

Physical Properties

The following table shows the physical properties ofgrade 403 stainless steel.

Properties	Metric	Imperial
Density	7.80 g/cm³	0.282 lb/in3

Thermal Properties

The thermal properties of grade 403 stainless steelare given in the following table.

Properties	Metric	Imperial
Thermal expansion co-efficient (@0-100°C/32-212°F)	9.90 μm/m°C	5.50 μin/in°F
Thermal conductivity (@500°C/932°F)	21.5 W/mK	149 BTU in/hr.ft2.°F

Other Designations

Equivalent materials to grade 403 stainless steel aregiven in the table below.

AISI 403	AISI 614	ASTM A176	ASTM A276	ASTM A473
ASTM A314	ASTM A479	ASTM A511	ASTM A580	DIN 1.4000
QQ S763	AMS 5611	AMS 5612	FED QQ-S-763	MIL SPEC MIL-S-862
SAE 51403	SAE J405 (51403)