Seamless Pipe ASTM A333

Seamless Pipe ASTM A333

ASTM A333 / A333M - 16 Standard Specification for Seamless and Welded Steel Pipe for Low-Temperature Service and Other Applications with Required Notch Toughness Abstract This specification covers wall seamless and welded carbon and alloy steel pipe intended for use at low temperatures. The pipe...

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ASTM A333 / A333M - 16 
Standard Specification for Seamless and Welded Steel Pipe for Low-Temperature Service and Other Applications with Required Notch Toughness

Abstract

This specification covers wall seamless and welded carbon and alloy steel pipe intended for use at low temperatures. The pipe shall be made by the seamless or welding process with the addition of no filler metal in the welding operation. All seamless and welded pipes shall be treated to control their microstructure. Tensile tests, impact tests, hydrostatic tests, and nondestructive electric tests shall be made in accordance to specified requirements.

Scope

1. This specification covers nominal (average) wall seamless and welded carbon and alloy steel pipe intended for use at low temperatures and in other applications requiring notch toughness. Several grades of ferritic steel are included as listed in Table 1. Some product sizes may not be available under this specification because heavier wall thicknesses have an adverse effect on impact properties.

(A) For each reduction of 0.01 % carbon below 0.30 %, an increase of 0.05 % manganese above 1.06 % would be permitted to a maximum of 1.35 % manganese.

(B) Where an ellipsis (...) appears in this table, there is no requirement and analysis for the element need not to be determined or reported.

(C) By agreement between the manufacturer and the purchaser, the limit for columbium may be increased up to 0.05 % on heat analysis and 0.06 % on product analysis.

2 The values stated in either SI units or inch-pound units are to be regarded separately as standard. Within the text, the SI units are shown in brackets. The values stated in each system may not be exact equivalents; therefore, each system shall be used independently of the other. Combining values from the two systems may result in non-conformance with the standard. The inch-pound units shall apply unless the “M” designation of this specification is specified in the order.

NOTE 1: The dimensionless designator NPS (nominal pipe size) has been substituted in this standard for such traditional terms as “nominal diameter,” “size,” and “nominal size.”


Strike Temperature Condition:

CradeThe 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


Mechanical Properities:

StandardGradeTensile Strength (MPa)Yield Point (MPa)Elongation (%)
YX
ASTM A333Grade 1≥380≥205≥35≥25
Grade 3≥450≥240≥30≥20
Grade 4≥415≥240≥30≥16.5
Grade 6≥415≥240≥30≥16.5
Grade 7≥450≥240≥30≥22
Grade 8≥690≥515≥22
Grade 9≥435≥315≥28
Grade 10≥550≥450≥22
Grade 11≥450≥240≥18


Grade and Chemical Composition:

StandardGradeChemical Composition (%)
CSiMnPSCrNiCuMoVAl
ASTM A333Grade 1≤0.30
0.40~1.06≤0.025≤0.025





Grade 3≤0.190.18~0.370.31~0.64≤0.025≤0.025
3.18~3.82



Grade 4≤0.120.18~0.370.50~1.05≤0.025≤0.0250.44~1.010.47~0.980.40~0.75

0.04~0.30
Grade 6≤0.30≥0.100.29~1.06≤0.025≤0.025





Grade 7≤0.190.13~0.32≤0.90≤0.025≤0.025
2.03~2.57



Grade 8≤0.130.13~0.32≤0.90≤0.025≤0.025
8.40~9.60



Grade 9≤0.20
0.40~1.06≤0.025≤0.025
1.60~2.240.75~1.25


Grade 10≤0.200.10~0.351.15~1.50≤0.03≤0.015≤0.15≤0.25≤0.015≤0.50≤0.12≤0.06
Grade 11≤0.10≤0.35≤0.6≤0.025≤0.025≤0.5035.0~37.0
≤0.50




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