AISI R04220

2014-01-06 15:29:12 Print this page

The high quality USA AISI R04220 material is one of the more steel grades we supply, Niobium (columbium) RRR Grade. R04220 is our main production grade, which has been approved by customers in many countries since its initial production, including our R04220 round bars, flat bar, forgings, fasteners, tubes, wires, strips, sheets & Plates, as well as a variety of profiles, professional high precision auto-lathe processing manufacturer of clinching fasteners, axes, standoffs, screws, studs, nuts, bolt, OEM parts and special shaped turning partsthe state of delivery includes quenched and tempered, annealed, machined semi-finished products, we also have strict management of the packaging, to avoid material damage from transportation. We are the best supplier of R04220 materials, and we are willing to develop together with customers from all over the world.

Also includes R04220 steel material norm, chemical composition, mechanical properties, datasheet, R04220 equivalent, heat treatment and temperature process of R04220, The peak hardness can be achieved, Contains all of the specification, welding properties, let us in R04220 this steel grade have a more comprehensive understanding, Download the full R04220 PDF version of this datasheet.

Chemical composition (wt.%) of R04220

Elements	Min.（≥）	Max.（≤）
C	-	0.22
Si	-	0.40
Mn	-	0.75
P	-	-
S	-	-
Ni	-	0.75
Cr	-	12.50
Al	-	-
Cu	-	-
Ti	-	-
Fe	-	remaining
N	-	-
Mo	-	1.00
W	-	1.00
V	-	0.22

Mechanical Properties of R04220

Rp0.2 (MPa)	Rm (MPa)	Impact KV (J)	Elongation A (%)	A Z (%)	Delivery	Hardness HB
915 (≥)	549 (≥)	13	42	34	Solution & Aging, Ann, Ausaging, Q+T	323

Equivalent Grade Stock of R04220

Materials	Dimension	Quantity	State
SA-437 Grade B4B/SUS 616 /422 Forged Bar	Dia.160xL	2120 Kgs	Forged+QT