Yuhong Group Co.,Ltd
| Payment Terms | L/C, T/T |
| Supply Ability | 1500 tons per month |
| Delivery Time | 15-30days |
| Packaging Details | Plywooden Case /Iron Case |
| Standard | ASME SA335 |
| Grade | P9 |
| Type | Seamless |
| Application | High Temperature Service |
| Surface | Bright annealing， Pickling |
| Heat Treatment | Normalize and Temper |
| Brand Name | YUHONG |
| Model Number | ASME SA335 P9 |
| Certification | ABS, GL, DNV, NK, PED, AD2000, GOST9941-81, CCS, ISO 9001-2008 |
| Place of Origin | CHINA |
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Product Specification
| Payment Terms | L/C, T/T | Supply Ability | 1500 tons per month |
| Delivery Time | 15-30days | Packaging Details | Plywooden Case /Iron Case |
| Standard | ASME SA335 | Grade | P9 |
| Type | Seamless | Application | High Temperature Service |
| Surface | Bright annealing， Pickling | Heat Treatment | Normalize and Temper |
| Brand Name | YUHONG | Model Number | ASME SA335 P9 |
| Certification | ABS, GL, DNV, NK, PED, AD2000, GOST9941-81, CCS, ISO 9001-2008 | Place of Origin | CHINA |
| High Light | High Temperature Service alloy Pipe ，seamless ferritic alloy steel pipe | ||
ASME SA335 P9 Seamless Ferritic Alloy Steel Pipe For High Superheater and Boiler
With over 30 years of dedicated focus on industrial pipe manufacturing, YUHONG GROUP has established a mature production system for ASME SA335 P9 seamless ferritic alloy steel pipes for high - temperature service. Our state - of - the - art production facilities cover every crucial aspect, from electric furnace smelting to seamless tube rolling and precise heat treatment processes. This enables us to meticulously control the chemical composition and mechanical properties of P9 alloy pipes.
Backed by our ASME certification, we strictly adhere to the ASME SA335 standard throughout the entire production cycle, from the procurement of raw materials to the final product delivery.
Chemical Requirements for Grade P9
| Grade | UNS Designation | Carbon, % | Manganese, % | Phosphorus, % | Sulfur, % | Silicon, % | Chromium, % | Molybdenum, % | Others |
| P9 | K90941 | 0.15 max | 0.30 - 0.60 | 0.025 | 0.025 | 0.25 - 1.00 | 8.00 - 10.00 | 0.90 - 1.10 | …… |
Heat Treatment Requirements for Grade P9
| Grade | Heat Treat Type | Normalizing Temperature, min or range, °F [°C] | Cooling Media | Subcritical Annealing or Tempering Temperature, min or range, °F [°C] |
| P9 | full or isothermal anneal or normalize and temper or subcritical anneal | - | - | 1250 [675] |
Pipe Testing Requirements Summary Table
| Test Category | Test Type |
| Hydrostatic Test | General for most grades |
| For P91 Type 1/2, P92, P911, P122 | |
| Nondestructive Examination (NDE) | General NDE |
| For specific grades (P91 Type 1/2, P92, P911, P122) | |
| For Grades P9 with Practice E213 | |
| Mechanical Tests | Tension Test (Longitudinal) |
| Flattening Test | |
| Bend Test | |
| Hardness Test | |
Advantages in High - Temperature Service Applications
1. Material Properties Tailored for High - Temperature Conditions
Exceptional High - Temperature Strength
Superior Oxidation and Corrosion Resistance
2. Production and Quality Advantages Ensure Safety
High Reliability of Seamless Process
Comprehensive Quality Control Throughout the Process
3. Facilitate Efficient and Economical Operation of Equipment
Optimized Heat Transfer Efficiency
Long Service Life and Low Comprehensive Cost
Company Details
Business Type:
Manufacturer,Distributor/Wholesaler,Importer,Exporter,Trading Company,Seller,Other
Year Established:
2007
Total Annual:
50M-70M
Employee Number:
50~850
Ecer Certification：
Verified Supplier
YUHONG HOLDING GROUP is one of the largest Procurement, Engineering & Contracting Group companies in China. Our group branch company and factory have been already approved by : ABS, LR, DNV, GL, BV, CCS, KR, PED 97/23/EC, AD2000-WO, GOST9941-81, CCS, TS, CNNC, ISO9... YUHONG HOLDING GROUP is one of the largest Procurement, Engineering & Contracting Group companies in China. Our group branch company and factory have been already approved by : ABS, LR, DNV, GL, BV, CCS, KR, PED 97/23/EC, AD2000-WO, GOST9941-81, CCS, TS, CNNC, ISO9...
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