27SiMn Alloy Seamless Steel Pipe

Short Description:

27SiMn steel pipes are widely used in automobile, petroleum, chemical and shipping industries. 27SiMn steel pipe is normalized and tempered, and coated with phosphate inside and outside. This steel pipe is mainly used in the quenched and tempered state to manufacture hot stamping parts (hydraulic parts) requiring high toughness and wear resistance, and hot stamping parts requiring high toughness and wear resistance.

27SiMn seamless steel pipe has high hardenability, the critical hardenability diameter in water is 8~22mm, good machinability, medium cold deformation plasticity and weldability; In addition, the toughness of the steel pipe is not much reduced during heat treatment, but it has quite high strength and wear resistance, especially in water quenching.


Product Detail

Product Tags

Chemical Composition(%)

Elements

Min.

Max.

C

0.24

0.32

Si

1.10

1.4

Mn

1.10

1.4

P

 

0.035

S

 

0.035

Cu

 

0.3

Cr

 

0.3

Ni

 

0.3

Mo

 

0.15

Mechanical Properties

Tensile strength

565855

σb/MPa

Yield Strength

200

σ 0.2 ≥/MPa

Elongation

14

δ5≥()

ψ

-

ψ≥()

Akv

-

Akv≥/J

HBS

051698

-

HRC

30

 

Physical Properties

Thermal expansion

68-30

e-6/K

Thermal conductivity

93-72

W/m.K

Specific heat

450-460

J/kg.K

Melting temperature

2384-8458

C

Density

2244-1217

kg/m3

Resistivity

0.50-0.60

Ohm.mm2/m

Heat Treatment Regime

Annealing

Quenching

Tempering

Normalizing

Q & T


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