Grade 10CrMo 9 10
Germany W-Nr. 1.7380
Corresponding Standard DIN 17175-1979
Seamless Steel Tubes for Elevated Temperatures; Technical Terms of Delivery
Classification Alloy Steel
10CrMo 9 10 Chemical Element Composition Content (%)
Component C Si Mn P S Cr Mo
Minimum Value 0.08 - 0.4 - - 2 0.9
Maximum Value 0.15 0.5 0.7 0.035 0.035 2.5 1.2
10CrMo 9 10 Mechanical Properties
wall thickness
t
mm
Tensile Strength
σb
Mpa
Yield Point
σs
Mpa
Elongation or Extension Rate
δ
%
Impact Energy Absorption
KV2
J
t≤16 450~600 ≥280ⓐ L0=5d0
Longitudinal: ≥20
Transverse: ≥18
DVM Sample Transverse: ≥34ⓑ
16<t≤40 450~600 ≥280ⓐ L0=5d0
Longitudinal: ≥20
Transverse: ≥18
DVM Sample Transverse: ≥34ⓑ
40<t≤60 450~600 ≥270* L0=5d0
Longitudinal: ≥20
Transverse: ≥18
DVM Sample Transverse: ≥34ⓑ
Approximate Comparison Table Cast Steel
Japan United States Germany United Kingdom
JIS ASTM UNS DIN EN/DIN W-Nr. BS EN/BS
SCPH32-CF WC9 J21890 GS-12CrMo 9 10 1.7380 622
B3

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