Database of Steel and Alloy (Marochnik)

Home

Steel and Alloy

Search

Equivalent Grades

GOST Standards

Grading

Contacts

YOU HERE: Steel and Alloy -> Steel for special use

Characteristics for grade S345K ( С345К )

Grade :	S345K ( С345К )
Substitute:	10ХНДП
Classification :	Steel for structural constructions
Equivalent grades:	Is absent

Chemical composition in % for grade S345K ( С345К )

C	Si	Mn	Ni	S	P	Cr	N	Al	Cu
max 0.12	0.17 - 0.37	0.3 - 0.6	0.3 - 0.6	max 0.04	0.07 - 0.12	0.5 - 0.8	max 0.012	0.08 - 0.15	0.3 - 0.5

Mechanical properties under Т=20^oС for grade S345K ( С345К )

Assortment	Dimension	Direct.	s_в	s_T	d₅	y	KCU	Heat treatment
-	mm	-	MPa	MPa	%	%	kJ / m²	-
Sheet, GOST 27772-88	4 - 10		470	345	20

Technological properties for grade S345K ( С345К )

Weldability:

without limitations.

Types of delivery of grade S345K ( С345К )

В22 - Graded and shaped rolling

B23 - Sheets and Strips

Specification :

Mechanical properties :
s_в	- Tensile strength , [MPa]
s_T	- Yield stress, [MPa]
d₅	- Specific elongation at fracture , [ % ]
y	- Reduction of area , [ % ]
KCU	- Impact strength , [ kJ / m²]
HB	- Brinell hardness , [MPa]

Physical properties :
T	- Test temperature , [Grade]
E	- Young modulus , [MPa]
a	- Coefficient of linear expansion (range 20^o - T ) , [1/Grade]
l	- Termal (heat) condition coefficient , [Watt/(m·Grade)]
r	- Density , [kg/m³]
C	- Specific heat ( range 20^o - T ), [J/(kg·Grade)]
R	- Electrical resistance , [Ohm·m]

Weldability :
without limitations	- welding is done without heating and subsequent heat treeting
limited weldability	- welding is possible under heating up to 100-120 grade and subsequent heat treeting
hard weldability	- obtaining the quality welding needs the additional operations:heating up to 200-300 grade; the heat treeting ia annealing

S345K ( С345К ) - Steel for structural constructions: chemical composition, mechanical and physical properties, hardness
Database of steels and alloys (Marochnik) contains information about chemical composition and properties more then 3000 steels and alloys

© 2003 - 2024 Database of Steel and Alloy (russian title is the Marochnik)
Administration of the Marochnik is not responsible for the content's use.