MATERIAL DESCRIPTION

AISI 420 Mod is a martensitic 13Cr modified stainless steel with increased strength and hardness compared to standard 13Cr versions. It is used in the quenched and tempered condition.

APPLICATIONS

AISI 420 Mod is a widely used in the manufacture of oil industry completion equipment such as packers, valves and pressure containing parts. Is suitable for constructional and fastener applications where moderate corrosion resistance is required.

Heat Treatment
Hardened and tempered.

Weldability
Moderate.

CHEMICAL COMPOSITION

Weight % C SI MN CR MO NI S P
MIN.  0,18  0,25  0,25  12,50
MAX.  0,22  1,00  1,00  14,00  0,30  0,20  0,005  0,02

Approvals: NACE 0175/ ISO 15156/1, 18- 22HRC, QDT 217/235 BHN

Mechanical Properties: BAR

Yield strength
RP0.2, MPA
Tensile strength
RM, MPA
Elongation
[%]
Hardness
[HRC]
Impact, Charpy-V, -10ºC
[J]
MIN.  551  689  20  20
MAX.  655  ≤ 22

ROUND BAR STOCK – MIN YLD 80 KSI

DIA
2″
3″
90 mm
4″
4″
4.75″
5″
5.25″
5.5″
6″
6.5″
7″
7.25″
7.5″
8″
8.5″
9″
9.5″
10″
11″
12″

HOLLOW BORED BAR STOCK – MIN YLD 80 KSI

MEASUREMENTS
6″ OD x 4″ ID
6.25″ OD x 3.5″ ID
6.5″ OD x 2.5″ ID
7″ OD x 4″ ID
8″ OD x 3″ ID
8″ OD x 4″ ID
8″ OD x 5.75″ ID
8.5″ OD x 5.5″ ID
9″ OD x 150mm ID
10″ OD x 150mm ID