MATERIAL DESCRIPTION

The grade is developed from the standard 13Cr grade and offer enhanced mechanical properties and corrosion resistance. The low carbon improves weldability whilst maintaining the martensitic microstructure.

APPLICATIONS

Commonly used in the same area as AISI 4130,4140 and 4145 but often in environment, which have a high content of sulfur.

Heat Treatment
Hardened and tempered.

Weldability
Moderate.

CHEMICAL COMPOSITION

Weight % C SI MN CR NI MO CU N TI V S P
MIN.  S41425  0,50  12,00  4,00  1,50  0,06  0,005  0,020
MAX.  0,05  0,50  1,00  15,00  7,00  2,00  0,30  0,12
MIN.  S41427  11,50  4,50  1,50  0,01  0,005  0,020
MAX.  0,03  0,50  1,00  13,50  6,00  2,50  0,01  0,50

Product Standards: 95ksi or 110ksi yield strength, mid radial material.
Approvals: NACE MR 0175 for 95ksi type.

Mechanical Properties: BAR

95KSI Yield strength
RP0.2, MPA
Tensile strength
RM, MPA
Elongation
[%]
Hardness
[HRC]
Impact, Charpy-V, -10ºC
[J]
S41425 MIN.  655  724  ≥ 20  ≥ 60
MAX.  827  ≤ 28
S41427 MIN.  655  724  ≥ 20  ≥ 60
MAX.  827  ≤ 29
110KSI
S41427 MIN.  758  862  ≥ 17  ≥ 60
MAX.  896  1172  ≤ 32

ROUND BAR STOCK – MIN YLD 95 KSI

DIA
6″
 7″
 8.5″

ROUND BAR STOCK – MIN YLD 110 KSI

DIA
5″
6″
7″
8″
8.5″