AISI 420 MOD / UNS S42000

• 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 and weldability

  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

  	Yield strength Rp0.2, MPa	Tensile strength Rm, MPa	Elongation [%]	Hardness [HRC]	Impact, Charpy-V, -10ºC [J]
  Min.	550 (80 ksi)	689 (100 ksi)	20		20
  Max.	655			≤ 22

Stocked products and dimensions

• 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 3″ ID

  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 4″ ID

  8.5″ OD x 5.5″ ID

  10″ OD x 3″ ID

  10″ OD x 150mm ID