Yuhong Group Co.,Ltd
| Payment Terms | L/C,T/T |
| Supply Ability | 1000 tons per month |
| Delivery Time | Depends on quantity |
| Packaging Details | Ply-wooden Case /Iron Case/ Bundle with plastic Cap/Woven Case |
| Max Service Temperature | 650°C (1200°F) Continuous |
| Cr:Mo Ratio | 9:1 (8-10% Cr / 0.9-1.1% Mo) |
| NACE MR0175 Compliance | Certified for Sour Service |
| Stock Sizes | 1/2" to 24" OD | SCH 40, 80, 160, XXS |
| Equivalent Grade | EN 10216-2 12CrMo9-10 |
| Hydrotest Pressure | 1.5x Working Pressure |
| Brand Name | YUHONG |
| Model Number | ASTM A335 P9 |
| Certification | ABS, GL, DNV, NK, PED, AD2000, GOST9941-81, CCS, ISO 9001-2008 |
| Place of Origin | CHIAN |
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Product Specification
| Payment Terms | L/C,T/T | Supply Ability | 1000 tons per month |
| Delivery Time | Depends on quantity | Packaging Details | Ply-wooden Case /Iron Case/ Bundle with plastic Cap/Woven Case |
| Max Service Temperature | 650°C (1200°F) Continuous | Cr:Mo Ratio | 9:1 (8-10% Cr / 0.9-1.1% Mo) |
| NACE MR0175 Compliance | Certified for Sour Service | Stock Sizes | 1/2" to 24" OD | SCH 40, 80, 160, XXS |
| Equivalent Grade | EN 10216-2 12CrMo9-10 | Hydrotest Pressure | 1.5x Working Pressure |
| Brand Name | YUHONG | Model Number | ASTM A335 P9 |
| Certification | ABS, GL, DNV, NK, PED, AD2000, GOST9941-81, CCS, ISO 9001-2008 | Place of Origin | CHIAN |
| High Light | Alloy Steel Pipe High Temperature ，SCH40 Seamless Alloy Steel Pipe ，SCH80 Alloy Steel Pipe | ||
ASTM A335 P9 Seamless Pipe - High Temperature Chrome Moly Alloy Steel Pipes
ASTM A335 P9 seamless pipe is a chromium-molybdenum alloy steel manufactured for high-temperature/pressure service in corrosive environments. Compliant with ASME B31.3 and NACE MR0175 standards, it delivers exceptional:
Table 1: ASTM A335 P9 Chemical Requirements (Weight %)
| Element | Min | Max | Role in Performance |
|---|---|---|---|
| Carbon (C) | 0.15 | 0.25 | Base strength |
| Chromium (Cr) | 8.00 | 10.00 | Oxidation/sulfidation resistance |
| Molybdenum (Mo) | 0.90 | 1.10 | High-temp strength |
| Manganese (Mn) | 0.30 | 0.60 | Deoxidation |
| Silicon (Si) | 0.25 | 1.00 | Deoxidation |
| Phosphorus (P) | - | 0.025 | Impurity control |
| Sulfur (S) | - | 0.025 | Weldability enhancement |
Trace Control:
Table 2: International Standard Cross-Reference
| Standard | Grade | UNS | EN | DIN | JIS | GB |
|---|---|---|---|---|---|---|
| ASTM/ASME | A335 P9 | K90941 | - | - | - | - |
| ISO | - | - | 12CrMo9-10 | 13CrMo4-5 | STPA26 | - |
| India | GSTA26 P9 | - | - | - | - | 15CrMoG |
| Russia | 15ХМ | - | - | - | - | - |
Table 3: Minimum Room-Temperature Mechanical Properties (Per ASTM A335)
| Condition | Tensile Strength | Yield Strength | Elongation (%) | Hardness (HB) |
|---|---|---|---|---|
| Normalized + Tempered | 415 MPa (60,000 psi) | 205 MPa (30,000 psi) | 30 | ≤ 179 |
Elevated-Temperature Performance:
| Industry | Specific Applications | Service Conditions |
|---|---|---|
| Power Generation | • Superheater/reheater tubes • Steam headers • Boiler risers | 540-565°C @ 250 bar |
| Petrochemical | • Hydrocracker transfer lines • Catalytic reformer exchangers • Coker unit piping | H₂S partial pressure >0.05 psi |
| Oil & Gas | • Sour gas injection systems • HP/HT wellhead piping • Thermal recovery manifolds | NACE MR0175 Zone 3 |
| Industrial Heating | • Thermal fluid circuits • Pyrolysis reactors • Heat treatment furnaces | Cyclic thermal shock |
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 Group is one of the large scale group company in China, more than 35 years experience in the international market, providing high-quality services to over 3000 customers, end user which like Aramco, Petrobras, Pemex, Petronas, Ecopetro, Petroecuador, …. till now Yuhong Grou... Yuhong Group is one of the large scale group company in China, more than 35 years experience in the international market, providing high-quality services to over 3000 customers, end user which like Aramco, Petrobras, Pemex, Petronas, Ecopetro, Petroecuador, …. till now Yuhong Grou...
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