TP310HCbN Austenitic Stainless Steel Pipe S31042 For Ultra Supercritical Boilers
TP310HCbN Super Austenitic Stainless Steel Pipe S31042 for Supercritical and ultra-supercritical boilers
ASTM A312, ASTM A213 ,S31042 / TP310HCbN Super Austenitic Stainless Steel Pipe and Tube
Material Description:
The mainstream trend of energy conservation and environmental protection has promoted the development of supercritical and ultra-supercritical units with high power generation efficiency and low power consumption coal consumption. The high steam parameters of supercritical and ultra-supercritical units require boiler materials with excellent oxidation and corrosion resistance and good high temperature strength
TP310HCbN(S31042) steel is an important supercritical and ultra-supercritical boiler steel.
Description:
TP310HCbN(S31042) Super Austenitic Stainless Steel Pipe or Tube
Standard:
ASTM A312 Seamless and Welded Austenitic Stainless Steel Pipe
ASTM A269 Seamless and Welded Austenitic Stainless Steel Pipe for General Equipment
ASTM B673, ASTM B674, ASTM B677, ASTM B675, ASTM B676, ASTM B690
Material: TP310HCbN(S31042)
Main chemical composition:
[ C ]: 0.04~0.10 | [ Si ]: ≤1.00 | [ Mn ]: ≤2.00 | [ P≤ ]: 0.045 | [ S≤ ]: 0.030 |
[ Cr ]: 24.0~26.0 | [ Ni ]: 19.0~22.0 | [ Mo ]: — | Nb 0.20~0.60 | N 0.15~0.35 |
Size Range for tubing:
OD:1/4" (6.25mm) to 8" (203mm) |
WT 0.02" (0.5mm) to 0.5"(12mm) |
Length:15m(Max) or as your requirement |
Process:
Cold drawn, Cold rolled, Precision Rolled for Seamless Pipe or Tube
Gas tungsten arc welding, Plasma arc welding (PAW),Submerged arc welding (SAW) For Welded Pipe or Tube
Finish: Annealed & pickled, bright annealing, polished
Ends: Beveled or plain end, square cut, burr free ,Plastic Cap at Both end
Packing: Bare packing/bundle packing with woven bag/wooden or steel frame crate packing/plastic cap protection at the both sides of tubes and suitably protected for sea-worthly delivery or as requested.
Inspection and Test Procedure
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
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)
NOTES : ALL THE TESTS AND INSPECTION RESULT NEED TO BE SHOWED IN REPORTS ACCORDING TO STANDARD AND SPECIFICATION.