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Class Rates
Socket-Welding fittings
Threaded Fittings
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Material
Approx Weight
 BizVerify
Yanshan Shuntong Steel Pipe&fittings Co., Ltd.
Verified By : Huaxia D&B
Verified Date : 2010-05-08
Material 

Chemical Composition & Mechanical Properties of Forged Steel Fitting
 
  A105 - Forgings Carbon Steel for Piping Components
  A350 - Forgings, Carbon and Low Alloy Steel, Requiring Notch Toughness Testing for Piping Components
  A182 - Forged or Rolled Alloy Steel Pipe Flanges, Forged Fittings and Valves, and Parts for High Temperature Service
Spec. No.
Grade
                                                   Chemical Compositionsmax%                      Mechanical Properties (min)
C Mn P S Si Cr Cu Mo Ni V Nb Ti Al Tensile
(MPa)
Yield
(MPa)
Elongation
%
Reduction
%
Impact
Akv(J)
Hardness
(HB)
  A105 0.35 0.60- 0.035 0.04 0.10- 0.3 0.4 0.12 0.4 0.05 0.02     485 250 30 30   187
1.05 0.35  
  LF2 0.3 0.60- 0.035 0.04 0.15- 0.3 0.4 0.12 0.4 0.03 0.02     485-655 250 30 30 20 197
1.35 0.3  
  F12 CL1 0.05- 0.30- 0.045 0.045 0.5 0.80-   0.44-           415 205 20 45   121-174
0.15 0.6 1.25 0.65  
  F12 CL2 0.10- 0.30- 0.04 0.04 0.10- 0.80-   0.44-           485 275 20 30   143-207
0.2 0.8 0.6 1.25 0.65  
  F11 CL1 0.05- 0.30- 0.03 0.03 0.50- 1.00-   0.44-           415 205 20 45   121-174
0.15 0.6 1 1.5 0.65  
  F11 CL2 0.10- 0.30- 0.04 0.04 0.50- 1.00-   0.44-           485 275 20 30   143-207
0.2 0.8 1 1.5 0.65  
  F11 CL3 0.10- 0.30- 0.04 0.04 0.50-1.00 1.00-   0.44-           515 310 20 30   156-207
0.2 0.8 1.5 0.65
  F22 CL1 0.05- 0.30- 0.04 0.04 0.5 2.00-   0.87-           415 205 20 35   170
0.15 0.6 2.5 1.13
  F22 CL3 0.05- 0.30- 0.04 0.04 0.5 2.00-   0.87-           515 310 20 30   156-207
0.15 0.6 2.5 1.13
  F5 0.15 0.30- 0.03 0.03 0.5 4.0-   0.44- 0.5         485 275 20 35   143-217
0.6 6 0.65
  F5a 0.25 0.6 0.04 0.03 0.5 4.0-   0.44- 0.5         620 450 22 50   187-248
6 0.65
  F321 0.08 2 0.045 0.03 1 17.0     9.00-     5C%-   515 205 30 50    
12 0.7
  F304 0.08 2 0.045 0.03 1 18.00-     8.00-         515 205 30 50    
20 11
  F304L 0.04 2 0.045 0.03 1 18.00-     8.00-         485 170 30 50    
20 13
  F316 0.08 2 0.045 0.03 1 16.00-   2.00- 10.00-         515 205 30 50    
18 3 14
  F316L 0.04 2 0.045 0.03 1 16.00-   2.00-3.00 10.00-         485 170 30 50    
18 15

 GB/T14383-93 - Forged Steel Socket Welding Pipe Fittings
 GB/T14626-93 - Forged Steel Threaded Pipe Fittings
 SH3410-96 - Forged Steel Socket Welding Pipe Fittings
Spec. No.
Grade
                                              Chemical Compositionsmax%                       Mechanical Properties (min)
C Mn P S Si Cr Cu Mo Ni V Nb Ti Al Tensile
(MPa)
Yield
(MPa)
Elongation
%
Reduction
%
Impact
Akv(J)
Hardness
(HB)
20# 0.17- 0.35- 0.035 0.035 0.17- 0.25 0.25   0.25         410-550 245 20      
0.24 0.65 0.37
  Q345E 0.18 1.00- 0.025 0.025 0.55         0.02- 0.015- 0.02- 490-655 325 21   27  
1.6 0.15 0.06 0.2 0.015
  15CrMo 0.12- 0.40- 0.035 0.035 0.17- 0.80- 0.3 0.40- 0.3         440 295 22 60   179
0.18 0.7 0.37 1.1 0.55
  12Cr1MoV 0.08- 0.40- 0.035 0.035 0.17- 0.90- 0.3 0.25-   0.15-       490 245 22 50   241
0.15 0.7 0.37 1.2 0.35 0.3 0.3
  1Cr5Mo 0.15 0.6 0.035 0.03 0.5 4.00- 0.3 0.45- 0.6         590 390 18     180
6 0.65
  0Cr18Ni10Ti 0.08 2 0.035 0.03 1 17.00-     9.00-       520 205 40 50   187
19 12 5C%
  0Cr18Ni9 0.07 2 0.035 0.03 1 17.00-     8.00-         520 205 40 60   187
19 11
  00Cr19Ni10 0.03 2 0.035 0.03 1 18.00-     8.00-         480 177 40 60   187
20 12
 0Cr17Ni12Mo2 0.08 2 0.035 0.03 1 16.00-   2.00- 10.00-         520 205 40 60   187
18 3 14
00Cr17Ni14Mo2 0.03 2 0.035 0.03 1 16.00-   2.00- 12.00-         480 177 40 60   187
18 3 15

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