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ASTM A269 TP347H Stainless Steel Pipe
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ASTM A269 TP347H Stainless Steel Pipe
TP347H Seamless Steel Tubes contains NB-Cr-Ni austenitic stainless steel. Because of the stable element Nb, it has good intergranular corrosion resistance, high endurance strength and oxidation resistance, as well as good technological properties such as bending and welding. Its comprehensive performance is better than TP304H
ASTM A269 TP347H Stainless Steel Pipe
A269 TP347H is a brand of the ASTM A269 Standard.ASTM A269 Standard Specification for Seamless and Welded Austenitic Stainless Steel Tubing for General Service.
ASTM A269 TP347H Stainless Steel Pipe Quick Details
Company Name: beite steel pipe
Country/Region: China
Product Name：ASTM A269 TP347H Stainless Steel Pipe
FOB Price: US $1,800-4,000 / Ton | 1 Ton/Tons (Min. Order)
Port of Shipment：Tianjin,China
Payment：L/C or T/T
Delivery: 7-15 days after payment
Package：Standard export package,suit for all kinds of transport, or as required
Certificate：ISO 9001-2000,PED 97/23/EC,ASME,DNV
ASTM A269 TP347H Stainless Steel Pipe Dimensional Range & Specification
Outside Diameter ：15-228mm
Wall thickness：0.4mm——20mm
Length：6000mm、12000m or specified length as required.
ASTM A269 TP347H Stainless Steel Pipe Available Size
| Stainless Steel Pipe | Nominal bore | SCH 5 | SCH 10 | SCH 40 | SCH 80 | SCH 160 |
| ASTM A269 TP347H Stainless Steel Pipe | 1/8″ | √ | √ | √ | ||
| ASTM A269 TP347H Stainless Steel Pipe | 1/4″ | √ | √ | √ | ||
| ASTM A269 TP347H Stainless Steel Pipe | 3/8″ | √ | √ | √ | √ | √ |
| ASTM A269 TP347H Stainless Steel Pipe | 1/2″ | √ | √ | √ | √ | √ |
| ASTM A269 TP347H Stainless Steel Pipe | 3/4″ | √ | √ | √ | √ | √ |
| ASTM A269 TP347H Stainless Steel Pipe | 1″ | √ | √ | √ | √ | √ |
| ASTM A269 TP347H Stainless Steel Pipe | 1 1/4″ | √ | √ | √ | √ | √ |
| ASTM A269 TP347H Stainless Steel Pipe | 1 1/2″ | √ | √ | √ | √ | √ |
| ASTM A269 TP347H Stainless Steel Pipe | 2″ | √ | √ | √ | √ | √ |
| ASTM A269 TP347H Stainless Steel Pipe | 2 1/2″ | √ | √ | √ | √ | √ |
| ASTM A269 TP347H Stainless Steel Pipe | 3″ | √ | √ | √ | √ | √ |
| ASTM A269 TP347H Stainless Steel Pipe | 4 “ | √ | √ | √ | √ | √ |
Chemical Composition(%) & Physical Properties of ASTM A269 TP347H Stainless Steel Pipe
ASTM A269 TP347H Stainless Steel Pipe Chemical Composition(%)
| Material(Grade) | C | Mn | P | S | Si | Cr | Ni | Co + Ta |
| TP347H | 0.04-0.10 | ≤2.00 | ≤0.045 | ≤0.03 | ≤1.0 | 17.0-19.0 | 9.0-13.0 | 8 x Cmin -1.0 |
ASTM A269 TP347H Stainless Steel Pipe Mechanical Properties
| Material(Grade) | Tensile Strength(MPa) | Yield Strength(MPa) | Elongation | Hardness | |
| Rockwell B (HR B) | Brinell (HB) | ||||
| TP347H | ≥515 | ≥205 | ≥35 | ≤92 | ≤201 |
ASTM A269 TP347H Stainless Steel Pipe Physical Properties
| Material | Density (kg/m3 | Elastic Modulus (GPa) | Mean Coefficient of Thermal Expansion (m/m/0C) | Thermal Conductivity (W/m.K) | Specific Heat 0-1000C (J/kg.K) | Electrical Resistivity (n.m) | |||
| 0-100℃ | 0-315℃ | 0-538℃ | at 100℃ | at 500℃ | |||||
| TP347H | 8000 | 193 | 15.9 | 16.2 | 18.4 | 16.2 | 21.5 | 500 | 740 |
Tolerance for ASTM A269 TP347H Stainless Steel Pipe
| OD,inch | OD,Tolerance inch(mm) | WT Tolerance % | Length Tolerance inch(mm) | |
| + | - | |||
| ≤1/2 | ±0.005（0.13） | ±15 | 1/8（3.2） | 0 |
| 1/2-1 1/2 | ±0.005（0.13） | ±10 | 1/8（3.2） | 0 |
| 1 1/2-3 1/2 | ±0.010（0.25） | ±10 | 3/16（4.8） | 0 |
| 3 1/2-5 1/2 | ±0.015（0.38） | ±10 | 3/16（4.8） | 0 |
| 5 1/2-8 | ±0.030（0.76） | ±10 | 3/16（4.8） | 0 |
| 8-12 | ±0.040（1.01） | ±10 | 3/16（4.8） | 0 |
| 12-14 | ±0.050（1.26） | ±10 | 3/16（4.8） | 0 |
Grade specifications for 347H grade stainless steel
| Material(Grade) | UNS No | Old British | Euronorm | Swedish SS | ||
| BS | En | No | Name | |||
| TP347H | S34709 | / | / | 1.4961 | X6CrNiNb18-12 | 2338 |
Tests and Inspection Of ASTM A269 TP347H Stainless Steel Pipe
Flattening Test,Flaring Test,Hardness Test,Hydrostatic or Nondestruction Electric Test ( Eddy Current and Ultrasonic Testing)
1.100% PMI,Spectro Chemical Aanlysis Test for Raw Material
2.100% Dimension & Visual Examination
3. Mechanical Properties Test Include Tension Test,Flaring Test (For Seamless tube/pipe)/ Flange Test (For Welded Pipe & Tube), Hardness Test ,Reversed Flattening Test, Transverse-guided face bend test
4.100% Hydrostatic Test or 100% NON-DESTRUCTIVE Test (ET or UT)
5.Radiographic Test for Welded Pipe (shall be accordance with specification,or shall be as agreed upon between the purchaser and vendor)
6.Straightness Test (optional)
7.Roughness Test (optional)
8.Intergranular Corrosion Test(optional)
9.Impact Test (optional)
10.Grain Size Determinations (optional)
Application of sa-213 TP347H seamless steel pipe
Allowable service temperature:A213, SA-213 TP347H seamless steel pipe can be used in high temperature and high pressure environment, with the maximum operating temperature of 650℃ for pressure parts and 850℃ for oxidation resistant parts.
Applicable conditions: A213, SA-213 TP347H stainless steel pipe is mainly used for making high temperature superheater, high temperature reheater, high temperature section of platen superheater and various high temperature and high pressure resistant pipe fittings and other components on large power generation boiler with subcritical and supercritical pressure parameters.
Use guide:
The sa-213tp347h material used in the boiler is austenitic stainless steel with crystallographic structure. It is specially believed in the industry that the service temperature of TP347H material can reach more than 650 ° C, and the high temperature oxidation resistance temperature of the support is only 595 ° C. Therefore, after sa-213tp347h is widely used in supercritical units, the oxide skin produced in sa-213tp347h pipe will fall off, which is very easy to cause tube plugging and tube explosion. It is suggested that sa-213tp347hfg inner wall shot peening (sb) can be upgraded to fine grain.
Selection of A213, SA-213 TP347H welding material
The welding performance is good (the welding joint can pass the l-method intergranular corrosion test). When welding the same kind of steel, the manual welding electrode shall be ao 102, Ao 107, Ao 132 or e308-15 (American brand); the argon arc welding wire shall be er-347; if the welding is carried out with different kinds of steel with ferritic materials, the welding wire or electrode of ernicr3 or enicrfe-3 type specified in ASME standard is recommended. After welding, the boiler pipe shall be subject to solution treatment at 1180 ℃ for 30 minutes.
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