Womic Stainless Steel Co., Ltd
316H stainless steel pipe is a high-carbon austenitic stainless steel grade designed for high temperature service applications. Compared with 316 and 316L stainless steels, the higher carbon content in 316H improves creep strength and high-temperature durability, making it suitable for pressure vessels, boilers, heat exchangers, and high-temperature piping systems.
316H stainless steel pipe offers excellent resistance to oxidation and corrosion at elevated temperatures, combined with strong mechanical properties and long-term structural stability. These characteristics make it a preferred material for industries such as power generation, petrochemical processing, refinery systems, and high-temperature industrial equipment.
The material is commonly manufactured according to international standards such as ASTM A312 and ASTM A213.
As a professional stainless steel pipe manufacturer, Womic Steel supplies high-quality 316H stainless steel seamless pipes and welded pipes for demanding industrial projects.
316H stainless steel pipes are produced according to several international standards to ensure compliance with engineering design requirements.
Common manufacturing standards include:
1 ASTM A312
2 ASTM A213
3 ASTM A269
4 EN 10216-5
5 EN 10217-7
These standards specify requirements for chemical composition, mechanical performance, dimensional tolerances, heat treatment conditions, and inspection procedures.
316H stainless steel corresponds to equivalent grades across different international standards.
|
Standard |
Grade |
|
ASTM |
TP316H |
|
UNS |
S31609 |
|
EN |
1.4401 (High Carbon Variant) |
|
JIS |
SUS316H |
These materials share similar metallurgical characteristics designed for high-temperature service conditions.
The higher carbon content improves high temperature creep strength.
|
Element |
Content (%) |
|
Carbon (C) |
0.04 – 0.10 |
|
Silicon (Si) |
≤1.00 |
|
Manganese (Mn) |
≤2.00 |
|
Phosphorus (P) |
≤0.045 |
|
Sulfur (S) |
≤0.030 |
|
Chromium (Cr) |
16.0 – 18.0 |
|
Nickel (Ni) |
10.0 – 14.0 |
|
Molybdenum (Mo) |
2.0 – 3.0 |
The molybdenum element significantly enhances resistance to corrosion and oxidation at high temperatures.
316H stainless steel pipes maintain strong mechanical performance even under elevated temperature conditions.
|
Property |
Value |
|
Tensile Strength |
≥515 MPa |
|
Yield Strength |
≥205 MPa |
|
Elongation |
≥35% |
|
Hardness |
≤217 HBW |
The higher carbon content improves creep resistance and high temperature strength.
316H stainless steel pipe is specifically designed for high-temperature service environments.
Key performance advantages include:
1 excellent creep resistance
2 high strength at elevated temperatures
3 strong oxidation resistance
4 stable microstructure during long-term heating
5 good resistance to thermal fatigue
These properties make the material suitable for power plants, refinery furnaces, and industrial heat exchangers.
Seamless 316H stainless steel pipes are produced using advanced hot forming and cold finishing technologies.
Typical manufacturing process includes:
1 stainless steel billet inspection
2 billet heating in rotary furnaces
3 piercing process to form hollow tubes
4 hot rolling or extrusion
5 cold drawing for precision sizing
6 solution annealing heat treatment
7 straightening and cutting
8 non-destructive testing and inspection
Womic Steel utilizes modern seamless pipe production equipment to ensure high product quality.
Welded 316H stainless steel pipes are produced from stainless steel strip or plate through automated forming and welding processes.
Production steps include:
1 stainless steel coil preparation
2 roll forming into pipe shape
3 automatic TIG welding
4 weld seam heat treatment
5 pickling and passivation
6 dimensional calibration
7 inspection and testing
Modern welding technology ensures strong weld integrity and consistent pipe performance.
316H stainless steel pipes are available in a wide range of sizes.
Typical production capability of Womic Steel includes:
|
Pipe Type |
Outside Diameter |
|
Seamless Pipe |
6 mm – 610 mm |
|
Welded Pipe |
15 mm – 2000 mm |
Standard pipe lengths:
6 meters
12 meters
or customized lengths according to project requirements.
316H stainless steel pipes are typically produced according to ASME pipe schedules.
Common schedules include:
SCH 5
SCH 10
SCH 20
SCH 40
SCH 80
SCH 160
The appropriate schedule is selected based on operating pressure, temperature, and design codes.
Various surface finishes are available depending on application requirements.
Typical surface finishes include:
1 pickled and passivated surface
2 bright annealed surface
3 polished surface
4 sand blasted surface
These finishes enhance corrosion resistance and improve surface quality.
Strict inspection procedures are implemented to ensure product quality and compliance with international standards.
Typical inspection items include:
1 chemical composition analysis
2 mechanical property testing
3 hydrostatic pressure test
4 eddy current testing
5 ultrasonic testing
6 PMI (Positive Material Identification)
7 dimensional inspection
Womic Steel provides full inspection documentation and mill test certificates.
316H stainless steel pipes are widely used in industries that require high temperature strength and corrosion resistance.
Typical applications include:
1 power generation plants
2 refinery furnace piping systems
3 petrochemical processing facilities
4 industrial heat exchangers
5 pressure vessels
6 boiler systems
7 high temperature fluid transport systems
These industries require materials capable of operating reliably under elevated temperatures and harsh environments.
Proper packaging protects stainless steel pipes during transportation.
Typical export packing includes:
1 wooden cases
2 steel strip bundles
3 plastic end caps
4 waterproof wrapping materials
Womic Steel provides professional export packaging designed for long-distance international shipping.
As a professional stainless steel pipe manufacturer, Womic Steel offers reliable products and strong production capacity.
Key advantages include:
1 advanced stainless steel pipe production equipment
2 strict quality inspection systems
3 wide range of stainless steel pipe grades
4 competitive pricing for global projects
5 reliable delivery and logistics support
With extensive experience supplying international engineering projects, Womic Steel provides dependable stainless steel piping solutions.
Customized services. Rapid production. Global reach. We ensure your specific needs are fulfilled with precision and top-tier quality.
Website: www.womicstainless.com
Email:info@womicstainless.com
Tel/WhatsApp/WeChat:Victor: +86-15575100681 or Jack: +86-18390957568
