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 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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