Forged sus 347H rf wn blind flange 347 stainless steel flange astm a351 cf8c stainless steel pipe flange
一;What is the ss347/347H flange
SS 347 / 347H Flanges are fabricated from austenitic stainless steel alloy including columbium and chromium. Therefore the presence of columbium helps in preventing resisting intergranular corrosion and carbide precipitation. Furthermore, it also includes tantalum content that exhibits higher creep and stress rupture. These flanges are often known from UNS S34709. These flanges comprise great corrosion resistance, smooth surface finish, and sturdy construction. These flanges have excellent weldability and formability qualities. However, these get non-magnetic in the annealed situation and can be hardened through cold working process.
二;Equivalent Grades of ASME SA182 Stainless Steel 347/347H Flanges
| STANDARD |
WERKSTOFF NR. |
UNS |
JIS |
EN |
| SS 347 |
1.4550 |
S34700 |
SUS 347 |
X6CrNiTi18-10 |
| SS 347H |
1.4961 |
S34709 |
SUS 347H |
X12CrNiTi18-9 |
Stainless Steel 347/347H Flanges Specification
Specifications : ASTM A182 / ASME SA182
Dimensions : ANSI/ASME B16.5, B 16.47 Series A & B, B16.48, BS4504, BS 10, EN-1092, DIN, etc.
Standard : ANSI Flanges, ASME Flanges, BS Flanges, DIN Flanges, EN Flanges, etc.
Size : 1/2" (15 NB) to 48" (1200NB)
Class/Pressure : 150#, 300#, 600#, 900#, 1500#, 2500#, PN6, PN10, PN16, PN25, PN40, PN64 etc.
Flange Face Type : Flate Face (FF), Raised Face (RF), Ring Type Joint (RTJ)
Stainless Steel 347/347H Flanges Chemical Properties
| Grade |
C |
Mn |
Si |
P |
S |
Cr |
N |
Ni |
Ti |
| SS 347 |
0.08 max |
2.0 max |
1.0 max |
0.045 max |
0.030 max |
17.00 - 19.00 |
0.10 max |
9.00 - 12.00 |
5(C+N) – 0.70 max |
| SS 347H |
0.04 – 0.10 |
2.0 max |
1.0 max |
0.045 max |
0.030 max |
17.00 - 19.00 |
0.10 max |
9.00 - 12.00 |
4(C+N) – 0.70 max |
Stainless Steel 347/347H Flanges Mechanical Properties
| Density |
Melting Point |
Tensile Strength |
Yield Strength (0.2%Offset) |
Elongation |
| 8.0 g/cm3 |
1457 °C (2650 °F) |
Psi – 75000 , MPa – 515 |
Psi – 30000 , MPa – 205 |
35 % |
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