Stainless Steel 347

Do you need custom fasteners created with Stainless Steel 347? Since our inception, Vegas Fastener Group has met every challenge of providing Quality, Timely, Cost-effective solutions for specialty fastener applications. Every product is built to your specifications, using your prints if necessary.

Below are the technical specifications of the Stainless Steel 347 Bar Stock we have available to meet your needs.

AISI Type 347 Stainless Steel, annealed, bar

Subcategory: Heat Resisting; Metal; Stainless Steel; T 300 Series Stainless Steel

Close Analogs: AISI Type 348

Key Words: AFNOR Z 6 CNNb 18.10, UNI X 8 CrNiNb 18 11, JIS SUS 347, SS14 2338 (Sweden), UNS S34700, AMS 5512, AMS 5556, AMS 5558, AMS 5571, AMS 5575, AMS 5646, AMS 5654, AMS 5674, AMS 5680, AMS 5681, ASME SA182, ASME SA193, ASME SA194, austenitic, ASME SA213, ASME SA240, ASME SA249, ASME SA312, ASME SA320 (B8C), ASME SA358, ASME SA376, ASME SA403, ASME SA409, ASME SA430, ASME SA473, ASME SA479, ASME SA493, ASME SA511, ASME SA554, ASME SA580, ASME SA633, FED QQ-S-763, FED QQ-S-766, B.S. 347 S 17, B.S. En. 58 F, B.S. En. 58 G, B.S. ANC 3 Grade B, FED QQ-W-423, MIL SPEC MIL-S-862, MIL SPEC MIL-S-23196, SAE J405 (30347), DIN 1.4550, ISO 683/13 16

Component Wt. %
C Max 0.08
Cr 17
Fe 68
Mn Max 2
Nb + Ta 0.8
Ni 11
P Max 0.045
S Max 0.03
Si Max 1

Material Notes:
Niobium plus Tantalum is ten times the minimum carbon content

Physical Properties Metric English Comments
Density 8 g/cc 0.289 lb/in³
Mechanical Properties
Hardness, Brinell 160 160
Hardness, Knoop 180 180 Converted from Brinell hardness.
Hardness, Rockwell B 83 83 Converted from Brinell hardness.
Hardness, Vickers 167 167 Converted from Brinell hardness.
Tensile Strength, Ultimate 620 MPa 89900 psi
Tensile Strength, Yield 240 MPa 34800 psi at 0.2% offset
Elongation at Break 50 % 50 % in 50 mm
Modulus of Elasticity 195 GPa 28300 ksi
Poisson’s Ratio 0.27 0.27
Charpy Impact 160 J 118 ft-lb
Izod Impact 120 – 160 J 88.5 – 118 ft-lb
Shear Modulus 77 GPa 11200 ksi
Electrical Properties
Electrical Resistivity 7.3e-005 ohm-cm 7.3e-005 ohm-cm at 20°C
Magnetic Permeability 1.008 1.008 at RT
Thermal Properties
CTE, linear 20°C 17.3 µm/m-°C 9.61 µin/in-°F from 0-100°C (32-212°F)
CTE, linear 250°C 17.8 µm/m-°C 9.89 µin/in-°F at 0-260°C (32-500°F)
CTE, linear 500°C 18.4 µm/m-°C 10.2 µin/in-°F at 0-540°C, 18.7 µm/m-C at 0-650°C
Heat Capacity 0.5 J/g-°C 0.12 BTU/lb-°F from 0-100°C (32-212°F)
Thermal Conductivity 16.3 W/m-K 113 BTU-in/hr-ft²-°F at 100°C (212°F), 21.5 W/m-K at 500°C (930°F)
Melting Point 1400 – 1425 °C 2550 – 2600 °F
Solidus 1400 °C 2550 °F
Liquidus 1425 °C 2600 °F
Maximum Service Temperature, Air 870 °C 1600 °F Intermittent Service
Maximum Service Temperature, Air 925 °C 1700 °F Continuous Service

References are available for this material.