MATERIAL DESCRIPTION

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

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/ 18- 22HRC

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.

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

Heat Treatment

Hardened and tempered.

Weldability

Moderate.

AISI 420 MOD QDT 217/235 BHN YLD 80KSI MIN
NACE MR0175 / ISO 15156/1 HOLLOW BORED BAR

DIAMETER
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

AISI 420 MOD 217/235 BHN YLD 80KSI MIN
NACE MR0175 / ISO 15156/1 ROUND BAR

DIAMETER
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″