ASTM A106/A53 Pipe

Chemical Composition Standard Grade C Si Mn P S Ni Cr Cu Mo V GB/T 8163 10 0.07-0.13 0.07-0.37 0.35-0.65 0.035 0.035 0.30 0.15 0.25 - - 20 0.17-0.23 0.17-0.37 0.35-0.65 0.035 0.035 0.30 0.25 0.25 - - Q345A 0.20 0.55 1.00-1.60 0.045 0.045 0.

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Applicability

Chemical Composition

Standard	Grade	C	Si	Mn	P	S	Ni	Cr	Cu	Mo	V
GB/T 8163	10	0.07-0.13	0.07-0.37	0.35-0.65	≤0.035	≤0.035	≤0.30	≤0.15	≤0.25	-	-
	20	0.17-0.23	0.17-0.37	0.35-0.65	≤0.035	≤0.035	≤0.30	≤0.25	≤0.25	-	-
	Q345A	≤0.20	≤0.55	1.00-1.60	≤0.045	≤0.045	≤0.30	≤0.30	≤0.30	-	-
	Q345B	≤0.20	≤0.55	1.00-1.60	≤0.040	≤0.040	≤0.30	≤0.30	≤0.30	-	-
	Q345C	≤0.20	≤0.55	1.00-1.60	≤0.035	≤0.035	≤0.30	≤0.30	≤0.30	-	0.02-0.15
	Q345D	≤0.18	≤0.55	1.00-1.60	≤0.030	≤0.030	≤0.30	≤0.30	≤0.30	-	0.02-0.15
	Q345E	≤0.18	≤0.5	1.00-1.60	≤0.025	≤0.025	≤0.30	≤0.30	≤0.30	-	0.02-0.15
ASTM A53M	A	≤0.25	-	≤0.95	≤0.05	≤0.045	≤0.40	≤0.40	≤0.40	≤0.15	≤0.08
ASTM A53M	B	≤0.30	-	≤1.20	≤0.05	≤0.045	≤0.40	≤0.40	≤0.40	≤0.15	≤0.08
ASTM A106M	A	≤0.25	≥0.10	0.27-0.93	≤0.035	≤0.035	≤0.40	≤0.40	≤0.40	≤0.15	≤0.08
	B	≤0.30	≥0.10	0.29-1.06	≤0.035	≤0.035	≤0.40	≤0.40	≤0.40	≤0.15	≤0.08
	C	≤0.35	≥0.10	0.29-1.06	≤0.035	≤0.035	≤0.40	≤0.40	≤0.40	≤0.15	≤0.08
JIS G 3454	STPG 370	≤0.25	≤0.35	0.30-0.90	≤0.040	≤0.040	-	-	-	-	-
JIS G 3454	STPG 410	≤0.30	≤0.35	0.30-1.00	≤0.040	≤0.040	-	-	-	-	-
JIS G 3455	STS 370	≤0.25	0.10-0.35	0.30-1.10	≤0.035	≤0.035	-	-	-	-	-
	STS 410	≤0.30	0.10-0.35	0.30-1.40	≤0.035	≤0.035	-	-	-	-	-
	STS 480	≤0.33	0.10-0.35	0.30-1.50	≤0.035	≤0.035	-	-	-	-	-
JIS G 3456	STPT 370	≤0.25	0.10-0.35	0.30-0.90	≤0.035	≤0.035	-	-	-	-	-
	STPT 410	≤0.30	0.10-0.35	0.30-1.00	≤0.035	≤0.035	-	-	-	-	-
	STPT 480	≤0.33	0.10-0.35	0.30-1.00	≤0.035	≤0.035	-	-	-	-	-

Mechanical Properties

Standard	Grade	Tensile Strength (MPa)	（MPa) Yield Strength		Elongation（%）	Impact Test
			≤16mm	＞16mm		Temperature	（KV/J) Absorbed energy
GB/T 8163	10	335-475	≥205	≥195	≥24	-	-
	20	410-530	≥245	≥235	≥20	-	-
	Q345A	470-630	345	325	20	-	-
	Q345B	470-630	345	325	20	20	34
	Q345C	470-630	345	325	21	0	34
	Q345D	470-630	345	325	21	-20	34
	Q345E	470-630	345	325	21	-40	27
ASTM A53M	A	≥330	≥205		See table 3 of ASTM A53	-	-
	B	≥415	≥240
ASTM A106M
	A	≥330	≥205		See table 3 of ASTM A53	-	-
	B	≥415	≥240
C
≥485	≥275
JIS G 3454
	STPG 370	≥370	≥215		See table 3 of ASTM A53	-	-
STPG 410	≥410	≥245
JIS G 3455
	STS 370	≥370	≥215		See table 3 of ASTM A53	-	-
	STS 410	≥410	≥245
STS 480
≥480	≥275
JIS G 3456
	STPT 370	≥370	≥215		See table 3 of ASTM A53	-	-
	STPT 410	≥410	≥245
STPT 480	≥480	≥275

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ASTM A106/A53 Pipe