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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 TP316H Stainless Steel Tube For Pressure Parts in Power Boilers
Specifications
ASTM A312 TP316H stainless steel seamless pipe, also known as 1.4919 stainless steel seamless pipe, is an austenitic chromium-nickel-molybdenum stainless tube, in addition with nitrogen and boron.
They are intended for service at temperatures where creep and stress rupture properties are important. 1.4919 stainless steel seamless pipes have a very good resistance to raised temperature. Compared with 316 stainless, 316H stainless has many advantages, such as heat resistance, acid resistance and corrosion resistance. 316H stainless steel is a higher carbon variant of 316 stainless steel, which makes it more suitable for high temperature environment. The increased carbon content delivers a greater tensile and yield strength.
| American Standard | Standard Name |
| A 312 / SA 312 | Seamless,Welded and Heavily Cold Worked Austenitic Stainless Steel Pipes |
ASTM A312 TP316H Stainless Steel Tube Chemical Composition
(Sources American Standard A312 / A312M TABLE 1 Chemical Requirements)
| Steel Grade | UNS Designation A | ASTM A312 TP316H Chemical Composition % Max | |||||||
| C | Mn | P | S | Si | Cr | Ni | Mo | ||
| TP316H | S31609 | 0.04-0.10 | 2 | 0.045 | 0.03 | 1 | 16.0-18.0 | 11.0-14.0 | 2.00-3.00 |
ASTM A312 TP316H 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. | |||
| TP316H | S31609 | 75(515) | 30(205) | 35 |
ASTM A312 TP316H Stainless Steel Tube Application
Key Distinction from TP316:
While TP316 is used for general corrosion resistance, TP316H is specifically engineered for sustained high-temperature service. Its higher carbon content prevents the formation of strength-robbing chromium carbides for a longer period at high temperatures, ensuring better creep resistance. It is often used in applications above 525°C (975°F).