1. Diameter 20-600 mm 2. Black or Bright surface 3. Annealed or Quenched and tempered provided 4. Cutting service provide

27SiMn

APPLICATIONS:

This steel is mainly used in the quenched state, requirements for the manufacture of high toughness and wear resistance of the hot stamping; also be supplied in the normalized or hot-rolled state to use, such as tractor track pins and so on.

 27simn and the application of ordinary steel pipe.

Chemical Composition (%):

 

Carbon       0.24-0.33 

Silicon        1.10-1.40 

Manganese    1.10-1.40

Phosphorus    0.035max 

Sulphur       0.035 max 

Process:  EAF/LD+LF+VOD+ Rolled+Cold Drawn 

SIZE RANGE: 

Round:  10mm-90mm

 

SURFACE FINISHES: 

Black, Peeled(K12), Cold Drawn, Turned & Polished(H10, H11), Precision Ground(H9, H8)

Test: Ultrasonic test according to SEP 1921-84 C/c

 

Mechanical properties

 

 Sample blank size (mm): 25

 Tensile strength (σb / MPa):  980 min

 Yield point (σs / MPa):  835 min

 Elongation (δ5 /%):  12 min

 Section shrinkage (ψ /%): 40 min

 Impact energy (Aku2 / J):  39 min

 Brinell hardness (HBS100/3000) (annealing or high temperature tempered condition):  217 max

 

Certificate of Quality: issued in English, in addition the normal terms, production process, the mechanical property yield strength, tensile strength, elongation and hardness, forged ratio, UT test result, Grain size, heat treatment methods and the sample of is shown on the Certificate of Quality.

Marking: Heat No. will be cold stamped and Steel grade, diameter mm, length mm, and  the manufacturer LOGO and weight kg is painted.

27SiMn steel bar