B.S. NA21

2014-03-03 17:24:40 Print this page

The high quality UK B.S. NA21 material is one of the more steel grades we supply, B.S. BS 3072, B.S. BS 3074, B.S. BS 3076,Specification for nickel and nickel alloys: bar. NA21 is our main production grade, which has been approved by customers in many countries since its initial production, including our NA21 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 NA21 materials, and we are willing to develop together with customers from all over the world.

Also includes NA21 steel material norm, chemical composition, mechanical properties, datasheet, NA21 equivalent, heat treatment and temperature process of NA21, The peak hardness can be achieved, Contains all of the specification, welding properties, let us in NA21 this steel grade have a more comprehensive understanding, Download the full NA21 PDF version of this datasheet.

Chemical composition (wt.%) of NA21

Elements	Min.（≥）	Max.（≤）
C	-	0.10
Si	-	0.50
Mn	-	0.50
P	-	0.015
S	-	0.015
Cr	20.00	23.00
Ni	58.00	-
Mo	8.00	10.00
Al	-	0.40
Cu	-	-
Ti	-	0.40
Fe	-	5.00
Co	-	1.00
Nb+Ta	3.15	4.15

Mechanical Properties of NA21

Rp0.2 (MPa)	Rm (MPa)	Impact KV (J)	Elongation A (%)	A Z (%)	Delivery	Hardness HB
597 (≥)	651 (≥)	21	32	43	Solution & Aging, Ann, Ausaging, Q+T	314