SAE A 691 Grade 2 1/4 CR

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

The high quality USA SAE A 691 Grade 2 1/4 CR material is one of the more steel grades we supply, SAE A 691 (2009),Carbon and Alloy Steel Pipe, Electric-Fusion-Welded for High-Pressure Service at High Temperatures. A 691 Grade 2 1/4 CR is our main production grade, which has been approved by customers in many countries since its initial production, including our A 691 Grade 2 1/4 CR 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 A 691 Grade 2 1/4 CR materials, and we are willing to develop together with customers from all over the world.

Also includes A 691 Grade 2 1/4 CR steel material norm, chemical composition, mechanical properties, datasheet, A 691 Grade 2 1/4 CR equivalent, heat treatment and temperature process of A 691 Grade 2 1/4 CR, The peak hardness can be achieved, Contains all of the specification, welding properties, let us in A 691 Grade 2 1/4 CR this steel grade have a more comprehensive understanding, Download the full A 691 Grade 2 1/4 CR PDF version of this datasheet.

Chemical composition (wt.%) of A 691 Grade 2 1/4 CR

Elements	Min.（≥）	Max.（≤）
C	-	0.05
Si	-	0.20
Mn	-	0.50
P	-	-
S	-	-
Ni	-	remaining
Cr	15.00	17.00
Al	4.00	5.00
Cu	-	-
Ti	-	0.50
Fe	2.00	4.00
N	-	-
Mo	-	0.50
B	-	0.006
Zr	-	0.05

Mechanical Properties of A 691 Grade 2 1/4 CR

Rp0.2 (MPa)	Rm (MPa)	Impact KV (J)	Elongation A (%)	A Z (%)	Delivery	Hardness HB
187 (≥)	276 (≥)	21	43	21	Solution & Aging, Ann, Ausaging, Q+T	124