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General Metallic Materials of ASME Pressure Piping Code 2

Code	Grade	Chemical Composition %,max									Mechanical Requirement
Code	Grade	C	Si	Mn	P	S	Cr	Ni	Mo	Other	T.S. min MPa	Y.S. min MPa	EL. min %	HB max	Other
ASTM A 234/ ASME SA 234	WPB7)8)9)10)	0.30	0.10 min	0.29-1.06	0.050	0.058	0.40	0.40	0.15	Cu:0.40; V:0.08	415-655	240	22	197	-
	WPC 8)9)10)11)	0.35	0.10 min	0.29-1.06	0.050	0.058	0.40	0.40	0.15	Cu:0.40; V:0.08	485-655	275	22	197	-
	WP5 CL1	0.15	0.50	0.30-0.60	0.040	0.030	4.0-6.0	-	0.44-0.65	-	415-585	205	22	217	-
	WP5 CL3	0.15	0.50	0.30-0.60	0.040	0.030	4.0-6.0	-	0.44-0.65	-	520-690	310	22	217	-
	WP9 CL1	0.15	1.00	0.30-0.60	0.030	0.030	8.0-10.0	-	0.90-1.10	-	415-585	205	22	217	-
	WP9 CL3	0.15	1.00	0.30-0.60	0.030	0.030	8.0-10.0	-	0.90-1.10	-	520-690	310	22	217	-
	WP91	0.08-0.12	0.20-0.50	0.30-0.60	0.020	0.010	8.0-9.5	0.40	0.85-1.05	12)	585-760	415	20	248	-
	WP11 CL1	0.05-0.15	0.50-1.00	0.30-0.60	0.030	0.030	1.00-1.50	-	0.44-0.65	-	415-585	205	22	197	-
	WP11 CL2	0.05-0.20	0.50-1.00	0.30-0.80	0.040	0.040	1.00-1.50	-	0.44-0.65	-	485-655	275	22	197	-
	WP11 CL3	0.05-0.20	0.50-1.00	0.30-0.80	0.040	0.040	1.00-1.50	-	0.44-0.65	-	520-690	310	22	197	-
	WP12 CL1	0.05-0.20	0.60	0.30-0.80	0.045	0.045	0.80-1.25	-	0.44-0.65	-	415-585	220	22	197	-
	WP12 CL2	0.05-0.20	0.60	0.30-0.80	0.045	0.045	0.80-1.25	-	0.44-0.65	-	485-655	275	22	197	-
	WP22 CL1	0.05-0.15	0.50	0.30-0.60	0.040	0.040	1.90-2.60	-	0.87-1.13	-	415-585	205	22	197	-
	WP22 CL3	0.05-0.15	0.50	0.30-0.60	0.040	0.040	1.90-2.60	-	0.87-1.13	-	520-690	310	22	197	-
ASTM A 240/ ASME SA 240	304	0.08	0.75	2.00	0.045	0.030	18.0-20.0	8.0-10.5	-	N:0.10	515	205	40	201	-
	304H	0.04-0.10	0.75	2.00	0.045	0.030	18.0-20.0	8.0-10.5	-	-	515	205	40	201	-
	304L	0.030	0.75	2.00	0.045	0.030	18.0-20.0	8.0-12.0	-	N:0.10	485	170	40	201	-
	316	0.08	0.75	2.00	0.045	0.030	16.0-18.0	10.0-14.0	2.00-3.00	N:0.10	515	205	40	217	-
	316H	0.04-0.10	0.75	2.00	0.045	0.030	16.0-18.0	10.0-14.0	2.00-3.00	-	515	205	40	217	-
	316L	0.030	0.75	2.00	0.045	0.030	16.0-18.0	10.0-14.0	2.00-3.00	N:0.10	485	170	40	217	-
	321	0.08	0.75	2.00	0.045	0.030	17.0-19.0	9.0-12.0	-	N:0.10; Ti:5(C+N)-0.7	515	205	40	217	-
	321H	0.04-0.10	0.75	2.00	0.045	0.030	17.0-19.0	9.0-12.0	-	Ti:4(C+N)-0.7	515	205	40	217	-
	347	0.08	0.75	2.00	0.045	0.030	17.0-19.0	9.0-13.0	-	Nb:10C-1.00	515	205	40	201	-
	TP347H	0.04-0.10	0.75	2.00	0.045	0.030	17.0-20.0	9.0-13.0	-	Nb:8C-1.00	515	205	40	201	-
ASTM A 312/ ASME SA 312	TP304	0.08	1.00	2.00	0.045	0.030	18.0-20.0	8.0-11.0	-	-	515	205	35	-	-
	TP304H	0.04-0.10	1.00	2.00	0.045	0.030	18.0-20.0	8.0-11.0	-	-	515	205	35	-	-
	TP304L	0.035	1.00	2.00	0.045	0.030	18.0-20.0	8.0-13.0	-	-	485	170	35	-	-
	TP316 13)	0.08	1.00	2.00	0.045	0.030	16.0-18.0	11.0-14.0	2.00-3.00	-	515	205	35	-	-
	TP316H 13)	0.04-0.10	1.00	2.00	0.045	0.030	16.0-18.0	11.0-14.0	2.00-3.00	-	515	205	35	-	-
	TP316L	0.035	1.00	2.00	0.045	0.030	16.0-18.0	10.0-14.0	2.00-3.00	-	485	170	35	-	-

NOTE:
7) Fittings made from bars or plates shall have max.C 0.35.
8) Fittings made from forgings shall have C max.0.35 and Si max. 0.35 without min.limitation.
9) Below the specified max.C, If the content C decreases each 0.01 %, an increase of 0.06% Mn will be permitted up to a maximum of 1.35%.
10) The sum of Cu, Ni, Cr, and Mo shall not exceed 1.00 %.
11) The sum of Cr and Mo shall not exceed 0.32 %.
12) V:0.18-0.25, Nb:0.06-0.10, N:0.03-0.07, Al:0.02, Ti:0.01, Zr:0.01.
13) For welded TP316 and TP316H pipe, the range of Ni shall be 10.0~14.0 %.