ASTM A403 WP347 Pipe Fittings,A403 WP347H Pipe Fittings Elbow Tee
We are a professional manufacturer and exporter of ASTM A403 WP347 Pipe fittings,A403 WP347H Pipe Fitting,A403 WP347 Elbow,A403 WP347 Tee,Reducer
UNS – S34700 / S34709
SS347 is a balanced, austenitic, chromium steel containing columbium which takes into consideration the end of carbide precipitation, and thus intergranular corrosion.
SS347 is balanced out by the increases of chromium and tantalum and offers higher creep and stress rupture properties than SS 304 and 304L, which may also be utilized for exposures where sensitization and intergranular corrosion are of concern.The expansion of columbium likewise permits SS347 to have outstanding corrosion resistance, better than that of SS 321. SS347H is the higher carbon composition form of SS 347and display enhanced high temperature and creep properties.
Characteristics
- Higher creep stress and rupture properties when compared with 304
- Ideal for high temperature service
- Overcomes sensitization and intergranular corrosion concerns
- Can be used in elevated temperature applications
- Due to stabilisation the material offers better overall corrosion resistance when compared to 304/304L
Corrosion Resistance
SS 347 stainless steel plate displays good general corrosion resistance that is similar to 304. It was produced for use in the chromium carbide precipitation scope by 800 – 1500°F (427 – 816°C) where unbalanced alloys such as SS304 are subject to intergranular attack. In this temperature scope, the overall corrosion resistance of Alloy 347 stainless steel plate is better than SS 321 stainless steel plate. SS347 additionally performs somewhat superior to SS321 in strongly oxidizing situations up to 1500°F (816°C). The alloy can be utilized as a part of nitric solutions; most diluted organic acids at moderate temperatures and in pure phosphoric acid at lower temperatures and up to 10% diluted solutions at high temperatures. SS347 stainless steel plate resists polythionic acid stress corrosion cracking in hydrocarbon service. It can also be used in chloride or fluoride free caustic solutions at moderate temperatures. SS347 stainless steel plate doesn’t perform well in chloride solutions, even in small concentrations, or in sulfuric acid.
Hardening
This alloy doesn’t harden by heat treating. High properties may only be obtained through cold reduction.
Chemical Composition %
A403 WP347H Pipe Fittings Chemical Composition
| Grade | C | Si | P | S | Cr | Mn | Ni | Fe | Cb (Nb+Ta) |
| 347 | 0.08 max | 0.75 max | 0.045 max | 0.03 max | 17.0 – 19.0 | 2.0 max | 9.0-13.0 | Remainder | 10x (C + N)- 1.0 |
| 347H | 0.04-0.10 | 0.75 max | 0.045 max | 0.03 max | 17.0 – 19.0 | 2.0 max | 9.0-13.0 | Remainder | 8x (C + N)- 1.0 |
SS 347H Pipe Fittings Mechanical Properties
| Density | Melting Point | Tensile Strength | Yield Strength (0.2%Offset) | Elongation |
| 8.0 g/cm3 | 1454°C (2650°F) | Psi – 75000 , MPa – 515 | Psi – 30000 , MPa – 205 | 35 % |
SS 347H Pipe Fittings Equivalent Grades
| STANDARD | WERKSTOFF NR. | UNS | JIS | BS | GOST | AFNOR | EN |
| 347H | 1.4961 | S34709 | SUS 347H | – | – | – | X6CrNiNb18-12 |
ASTM A403 WP347H seamless Elbow
ASTM A403 WP347H 45 Degree Elbow
SA403 WP347H PIPE FITTINGS SPECIFICATION
Specifications : ANSI/ASME B16.9, B16.28, MSS-SP-43.
Standard : ASTM A403
Size : ½”NB to 48″NB in Sch 10s, 40s, 80s, 160s, XXS.
Schedules :Sch.40 to Sch.XXs
Type : Seamless / Welded
Product:Elbow,Tee,reducer,Stub end
SIZES:
1/2″ N. B. TO 16″ N. B. Seamless Pipe Fittings(BW)
1/2″ N. B. TO 48″ N. B. Welded BW
Marking:Standard/ As per request
Packing: Wooden case(Fumigation free) Or as per request
Inspection: In house and third party
Document: MTC EN10204-3.1 can be provided prior to shipment
