INDUSTRIAL METALS · MATERIAL SOURCING · FABRICATION
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AUSTENITIC STAINLESS

SS 347 equivalents, chemistry & properties.

SS 347 is a austenitic stainless used for high-temperature welded equipment. Below are its equivalent designations in nine standards, chemical composition, mechanical properties and density.

SS 347 equivalent grades

USA (ASTM / AISI / SAE)
AISI 347
UNS
S34700
Europe (EN)
X6CrNiNb18-10
Werkstoff No. (W.Nr)
1.4550
UK (BS)
347S31
Japan (JIS)
SUS347
China (GB)
06Cr18Ni11Nb
Russia (GOST)
08X18H12B

Key data

Family
Austenitic stainless
Density
7.96 g/cm³
Typical mechanical
TS ≥515 MPa · YS ≥205 MPa
Typical uses
High-temperature welded equipment
Weight
Calculate weight in SS 347

SS 347 chemical composition (weight %)

CSiMnPSCrNiNb
≤0.08≤0.75≤2.00≤0.045≤0.03017.0–19.09.0–13.010×C–1.00

Grades similar to SS 347

Frequently asked questions

What is the equivalent of SS 347?

SS 347 equivalents: USA (ASTM / AISI / SAE) AISI 347; UNS S34700; Europe (EN) X6CrNiNb18-10; Werkstoff No. (W.Nr) 1.4550; UK (BS) 347S31; Japan (JIS) SUS347; China (GB) 06Cr18Ni11Nb; Russia (GOST) 08X18H12B. Equivalents are close but not always identical; check the standard on your order.

What is the chemical composition of SS 347?

SS 347: C ≤0.08, Si ≤0.75, Mn ≤2.00, P ≤0.045, S ≤0.030, Cr 17.0–19.0, Ni 9.0–13.0, Nb 10×C–1.00 (weight %).

What is the density of SS 347?

About 7.96 g/cm³ (7,960 kg/m³), the value used for weight calculations.

Need SS 347?

Steel Impex India, Mumbai, supplies SS 347 in pipes, plates, sheets, bars and fittings as available, with mill test certificates. Send the grade, standard, size and quantity.