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| Brand Name: | Jinxi Pipe |
| Model Number: | Stainless steel pipe |
| MOQ: | 1 |
| Price: | 3000USD/TON |
| Payment Terms: | L/C,D/A,D/P,T/T,Western Union |
| Supply Ability: | 10000000 |
ASTM A312 TP348H Stainless Steel Tube For High-Pressure Power Boilers
Specifications
ASTM A312 TP348H is the high-carbon version of the TP348 grade. It is a niobium-stabilized austenitic stainless steel with the key distinguishing feature of a controlled cobalt content and a higher ratio of niobium. The "H" designation ensures a carbon content (0.04-0.10%) that provides enhanced high-temperature creep strength and stress rupture resistance.
| American Standard | Standard Name |
| A 312 / SA 312 | Seamless,Welded and Heavily Cold Worked Austenitic Stainless Steel Pipes |
ASTM A312 TP348H Stainless Steel Tube Chemical Composition
(Sources American Standard A312 / A312M TABLE 1 Chemical Requirements)
| Steel Grade | UNS Designation A | ASTM A312 TP348H Chemical Composition % Max | |||||||
| C | Mn | P | S | Si | Cr | Ni | Ti | ||
| TP348H | S34809 | 0.04-0.10 | 2 | 0.045 | 0.03 | 1 | 17.0-19.0 | 9.0-13.0 | 0.1 |
ASTM A312 TP348H Stainless Steel Tube Mechanical Properties
(Sources American Standard A312 / A312M TABLE 4 Tensile and Hardness Requirements)
| Steel Grade | UNS Designation |
Tensile Strength | Yield Strength | Elongation %, Min |
| Ksi (MPa), Min. | Ksi (MPa), Min. | |||
| TP348H | S34809 | 75(515) | 30(205) | 35 |
ASTM A312 TP348H Stainless Steel Tube Application
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