ASTM-A333

ASTM A333 tube Chemical Composition(%):

	Grade1	Grade3	Grade4	Grade6	Grade7	Grade8	Grade9	Grade10	Grade11
Carbon, max	0.3	0.19	0.12	0.3	0.19	0.13	0.2	0.2	0.1
Manganese	0.40-1.06	0.31-0.64	0.50-1.05	0.29-1.06	0.90 max	0.90 max	0.40-1.06	1.15-1.50	0.60 max
Phosphorus, max	0.025	0.025	0.025	0.025	0.025	0.025	0.025	0.035	0.025
Sulfur, max	…	0.025	0.025	0.025	0.025	0.025	0.025	0.015	0.025
Silicon	…	0.18-0.37	0.08-0.37	0.10 min	0.13-0.32	0.13-0.32	…	0.10-0.35	35.0-37.0
Nickel	…	3.18-3.82	0.47-0.98	…	2.03-2.57	8.40-9.60	1.60-2.24	0.25 max	0.50 max
Chromium	…	…	0.44-1.01	…	…	…	…	0.15 max	0.50 max
Copper	…	…	0.40-0.75	…	…	…	…	0.15 max	…
Aluminum	…	…	0.04-0.30	…	…	…	…	0.06 max	…
Vanadium, max	…	…	…	…	…	…	…	0.12	…
Columbium, max	…	…	…	…	…	…	…	0.05	…
Molybdenum, max	…	…	…	…	…	…	…	0.05	0.5 max
Cobalt	…	…	…	…	…	…	…	…	0.5 max

ASTM A333 tube Mechanical Properties:

	Grade 1		Grade 3		Grade 4		Grade 6		Grade 7		Grade 8
	Psi	MPa	Psi	MPa	Psi	MPa	Psi	MPa	Psi	MPa	Psi
Tensile strength min	55000	380	65000	450	60000	415	60000	415	60000	450	100000
Yield strength min	30000	205	35000	240	35000	240	35000	240	35000	240	75000

Impact Temperature
Grade	Minimum Impact	Test Temperature
	°F	°C
1	-50	-45
3	-150	-100
4	-150	-100
6	-50	-45
7	-100	-75
8	-320	-195
9	-100	-75
10	-75	-60

ASTM A333 tube include seamless wall and welded carbon and steel pipe which are used at normal and low temperature circumstances. According to the temperature range it could be classified into grades from 1-7 or more.

ASTM A333 tube Grade and Temperature Test Chart:

Grade	The lowest temperature for strike test
	℉	℃
Grade 1	-50	-45
Grade 3	-150	-100
Grade 4	-150	-100
Grade 6	-50	-45
Grade 7	-100	-75
Grade 8	-320	-195
Grade 9	-100	-75
Grade 10	-75	-60