Robvon Backing Ring (Chemical Composition for Conspacers<SUP>®</SUP>)

Chemical Composition for Conspacers^®

Carbon Steel Conspacers^®
Backing Ring Material ASTM A109
Grade	C	Mn	Ph	S
A109	0.15	0.60	0.035	0.20

Consumable Insert Material ASME/ASTM SA/A 5.30
Grade	C	Mn	P	S	Si	Al*	Zr*	Ti*
IN-MS1	0.06	1.00- 1.40	0.025	0.03	0.40- 0.60	0.05- 0.15	0.02- 0.12	0.05- 0.15
all listed elements are maximum unless specified

Chrome Moly Conspacers^®
F-11 (1 1/4% Chrome Moly)
Backing Ring Material ASME/ASTM A-182
Grade	C	Mn	Ph	S	Si	Cr	Mo
F-11	0.10- 0.20	0.30- 0.80	0.04	0.04	0.50- 1.00	1.00- 1.60	0.44- 0.65
Consumable Insert Material ASME/ASTM 5.30
Type	C	Mn	P	S	Si	Al	Cr	Mo	Cu
IN-515	0.10	0.40- 0.70	0.03	0.03	0.40- 0.70	0.15	1.2- 1.5	0.40- 0.65	0.15

all listed elements are maximum unless specified
F-22 (2 1/4% Chrome Moly)
Backing Ring Material ASME/ASTM A-182
Grade	C	Mn	Ph	S	Si	Cr	Mo
F-22	0.15	0.30- 0.60	0.04	0.04	0.50	2.00- 2.50	0.87- 1.13
Consumable Insert Material ASME/ASTM 5.30 521
Type	C	Mn	P	S	Si	Al	Cr	Mo	Cu	Ni
IN-521	0.10	0.40- 0.70	0.03	0.03	0.25 0.50	0.15	2.3- 2.7	0.90- 1.10	0.15	0.40
all listed elements are maximum unless specified

Stainless Steel Conspacers^®
304L Stainless Steel
Backing Ring Material ASME SA-240/ASTM A240
Grade	C	Mn	Ph	S	Si	Cr	Ni	Other
304L	.030	2.000	0.045	0.030	0.750	18.00- 20.00	8.00- 12.00	N 0.10 Max.
Consumable Insert Material ASME SFA5.30/ASTM A5.30
Type	C	Cr	Ni	Mo	Cb + Ta	Mn	Si	P	S	Cr/Ni*
IN-308L	0.03	19.5- 22.0	9.0- 11.0			1.0- 2.5	0.25- 0.60	0.03	0.03	1.9/1
all listed elements are maximum unless specified

316L Stainless Steel
Backing Ring Material ASME SA-240/ASTM/A-240
Grade	C	Mn	Ph	S	Si	Cr	Ni	Other
316L	0.030	2.000	0.045	0.030	0.750	16.00- 18.00	10.00- 14.00	Mo 2.00- 3.00 N 0.10 Max.
Consumable Insert Material ASME SFA5.30/ASTM A5.30
Type	C	Cr	Ni	Mo	Cb + Ta	Mn	Si	P	S	Cr/Ni*
IN-316L	0.03	18.0- 20.0	11.0- 14.0	2.0- 3.0		1.0- 2.5	0.25- 0.60	0.03	0.03
all listed elements are maximum unless specified

This page is for reference only, see the applicable specification for more details