σU
MPa
σP
MPa
ϵL

10HNDP

Chromium-nickel-phosphorus alloyed steel with copper; According to GOST 27772−88 corresponds to steel for building structures С345К.

In construction and engineering for welded structures.

Classification

Country Section Category
CIS, Russia, Ukraine Structural steel Low alloy structural steel for welded structures

Chemical composition

Standard Fe, % Si, % Mn, % Cr, % Cu, % Ni, % Al, % As, % P, % C, % S, % N, %
GOST 19281-89 96.612–98.28 0.17–0.37 0.3–0.6 0.5–0.8 0.3–0.5 0.3–0.6 0.08–0.15 < 0.08 0.07–0.12 < 0.12 < 0.04 < 0.008

Information on suppliers

Mechanical properties at 20 °C

Rolling Standard Size, mm Tension Classifiers \sigma _{U}σU, MPaMPa \sigma_{P}σP, MPaMPa \epsilon_LϵL, % Treatment
Sheet GOST 19282-73 5–9 480 350 20
Grade GOST 19281-2014 < 140 480 345 21

Technological Properties

Weldability
no limits

Analogues

United Kingdom Poland Czech Republic
S355J0WP 10HNAP 15217

Standards

Standard Description
GOST 19281-89

Description of chemical elements

Element Units of measurement Description
Fe % Iron
Si % Silicon
Mn % Manganese
Cr % Chrome
Cu % Copper
Ni % Nickel
Al % Aluminium
As % Arsenic
P % Phosphorus
C % Carbon
S % Sulfur
N % Nitrogen

Description of mechanical properties

Parameter Units of measurement Description
\sigma _{U}σU MPaMPa Ultimate tensile strength
\sigma_{P}σP MPaMPa Proportionality limit
\epsilon_LϵL % Elongation at break (longitudinal)

Designation of types of weldability

Parameter Units of measurement Description
no limits Welding is performed without heating and without subsequent heat treatment
Boundedly welded Welding is possible with heating up to 100–120 °C and subsequent heat treatment
Difficult to weld For obtaining quality welded joints, additional operations are required: heating up to 200–300 °C for welding, heat treatment after welding — annealing
Not applicable for welded structures