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ASTM A333 Seamless and Welded Steel Pipe for Low-Temperature Service

Product Description

Standard: ASTM A333/A333M
Steel Grade: 1 2 3 4 5 6 7 8 9 10 11
Size: OD (6.0-219mm) X WT (1-30mm)
Application: Used for low temperture.
Chemical composition %
Grade 1 3 4 6 7 8 9 10 11
C,max 0.3 0.19 0.12 0.3 0.19 0.13 0.2 0.2 0.1
Mn 0.40-1.06 0.31-0.64 0.5-1.05 0.29-1.06 0.9,max 0.9,max 0.4-1.06 1.15-1.5 0.6,max
P,max 0.025 0.025 0.025 0.025 0.025 0.025 0.025 0.035 0.025
S,max 0.025 0.025 0.025 0.025 0.025 0.025 0.025 0.025 0.025
Si ... 0.18-0.37 0.08-0.37 0.1,min 0.13-0.32 0.13-0.32 ... 0.1-0.35 0.35,max
Ni ... 3.18-3.82 0.47-0.98 ... 2.03-2.57 8.4-9.6 1.6-2.24 0.25,max 35-37
Cr ... ... 0.44-1.01 ... ... ... ... 0.15,max 0.5,max
Cu ... ... 0.4-0.75 ... ... ... 0.75-1.25 0.15,max ...
Al ... ... 0.04-0.3 ... ... ... ... 0.06,max ...
V,max ... ... ... ... ... ... ... 0.12 ...
Nb,max ... ... ... ... ... ... ... 0.05 ...
Mo,max ... ... ... ... ... ... ... 0.05 0.5,max
Co ... ... ... ... ... ... ... ... 0.5,max
Mn 0.40-1.06 0.31-0.64 0.5-1.05 0.29-1.06 0.9,max 0.9,max 0.4-1.06 1.15-1.5 0.6,max
 
Mechanical properties
GRADE 1 3 4 6 7 8 9 10 11
Tensile strength,  min,Mpa 380 450 415 415 450 690 435 550 450
Yield strength, min,Mpa 205 240 240 240 240 515 315 450 240
Elongation,min,   (s≥8mm) 35% 30% 30% 30% 30% 22% 28% 22% 18%
Elongation, min,    (Standard circle) 28% 22% 22% 22% 22% 16% ... 16% ...
Elongation(s<8mm)  Percentage reduction from basic each reduction of 8mm of wall thickness 1.75 1.5 1.5 1.5 1.5 1.25 1.5 1.25  
 
Impact  properties size Minimum average gap of each the three specimens (J) Minimum gap of each one specimens (J)  
 
10×10 18 14  
10×7.5 14 11  
10×6.67 12 9  
10×5 9 7  
10×3.33 7 4  
10×2.5 5 4  

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