Our company keeps up with the changes of technology, market and user demand, and constantly develops innovative Thick Wall Seamless Stainless Steel Tube, UNS N08825 Nickel Alloy Tubes, drawn over mandrel steel tube. Our products sell very well in both domestic and foreign countries. We take gratitude as the quality concept of the enterprise, always thank everyone for providing opportunities to our customers. We are deeply aware that a clear definition of responsibilities is conducive to process supervision and post-event accountability. The company's purpose is people-oriented, honest and pragmatic, innovative and enterprising, and return to the society.

ASTM A213 T9 T91 Steam Tube Boiler
Material and Specification
| Material | Specification |
|---|---|
| ASTM A213 | T9 T91 |
Chemical Composition
The chemical composition of ASTM A213 T9 T91 steam tube boiler materials is as follows:
| Element | ASTM A213 T9 (%) | ASTM A213 T91 (%) |
|---|---|---|
| Carbon (C) | 0.15 max | 0.08-0.12 |
| Manganese (Mn) | 0.30-0.60 | 0.30-0.60 |
| Phosphorus (P) | 0.025 max | 0.020 max |
| Sulfur (S) | 0.025 max | 0.010 max |
| Silicon (Si) | 0.25-1.00 | 0.20-0.50 |
| Chromium (Cr) | 8.00-10.00 | 8.00-9.50 |
| Molybdenum (Mo) | 0.90-1.10 | 0.85-1.05 |
Mechanical Properties
The mechanical properties of ASTM A213 T9 and T91 steam tube boiler materials are given below:
ASTM A213 T9
| Property | Value |
|---|---|
| Tensile Strength | 415 MPa (min) |
| Yield Strength | 205 MPa (min) |
| Elongation | 30% (min) |
| Hardness | HRB 163 (max) |
ASTM A213 T91
| Property | Value |
|---|---|
| Tensile Strength | 585 MPa (min) |
| Yield Strength | 415 MPa (min) |
| Elongation | 20% (min) |
| Hardness | HRB 250 (max) |
Steel Grade
The steel grade for ASTM A213 T9 and T91 steam tube boiler materials is as follows:
- ASTM A213 T9: Grade 9
- ASTM A213 T91: Grade 91
Application
ASTM A213 T9 and T91 steam tube boiler materials are widely used in the construction of steam boilers and high-pressure piping systems. These materials are specifically designed to withstand high temperatures and pressures encountered in steam generation processes. They are commonly used in power plants, refineries, and petrochemical plants, where reliable and efficient steam generation is crucial.



We are willing to cooperate with colleagues at home and abroad to make contributions to the development of 4 Ton China Industrial Fire Tube Beer Steam Boiler for the industry. We adhere to the new development concept, follow the requirements of high-quality development, and closely follow the theme of promoting social progress. We insist on improving the existing production process and eliminating the unstable factors in the production process.
Hot Tags: astm a213 t9 t91 steam tube boiler, China, suppliers, manufacturers, factory, customized, wholesale, price, OEM, mill, producer, for sale, annealed steel rod, seamless steel tube moisture resistance, marine carbon steel tube, seamless steel tube customer service, reliable steel rod, seamless steel tube pickling process






