AISI 4130 / UNS G41300

• Applications

  AISI 4130 is a low alloyed, hardened and tempered steel used for oil & gas drilling and production equipment.

• Heat treatment and weldability

  Heat Treatment

  Normalized 885 – 926°C. Austenized/ hardened 857 – 885°C. Tempered 650 – 704°C.

  Weldability

  Good.

• Chemical Composition (Specific for Bars)

  Weight %	C	Mn	P	S	Si	Cr	Ni	Mo	Cu	V	Al
  Min.	0,28	0,40			0,20	0,85		0,15
  Max.	0,33	0,60	0,020	0,025	0,35	1,20	0,50	0,25	0,35	0,10	0,035

• Reference Standards

  General:

  • NACE MR0175/ ISO 15156-3 and NACE MR0103/ ISO 17945

  Bars:

  • ASTM A29 (for chemical only), type 75 ksi

• Mechanical Properties (Specific for Bars – 75 ksi)

  	Yield strength Rp0.2, MPa	Tensile strength Rm, MPa	Elongation [%]	Hardness [HRC]	Impact, Charpy-V, -30ºC [J]	Impact, Charpy-V, -46ºC [J]
  75 ksi	≥ 517	≥ 655	≥ 18	≤  22	≥ 42	≥ 27

Stocked products and dimensions

• Round bar stock

  Round Bar Stock

  DIA

  3″

  4″

  130 mm

  6″

  165 mm

  180 mm

  8″

  8,5″

  10″

  12″

  14″

  16″

  20″

• Bored bar stock

  DIA

  130 mm OD x 3″ ID

  180 mm OD x 2.25″ ID

  180 mm OD x 2.13/16″ ID

  8″ OD x 2.25″ ID

  8″ OD x 3″ ID

  10″ OD x 3″ ID

  12″ OD x 3″ ID