Yuhong Group Co.,Ltd
| Payment Terms | T/T, L/C |
| Supply Ability | 1500 tons per month |
| Delivery Time | 10days-> |
| Packaging Details | Ply-wooden Case /Iron Case/ Bundle with plastic Cap |
| Material Grade | TP316L |
| Standard | ASTM A312 |
| Hydrostatic Test | ASTM A999/A999M-18 |
| Nondestructive Electric Test | ASTM A999/A999M-18 |
| Test | Mechanical Test, Transverse Test, Longitudinal Tension Test, Flattening Test, , |
| Application | ASME BPVC Pressure Vessel |
| Brand Name | YUHONG |
| Model Number | ASTM A312 TP316L |
| 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 | T/T, L/C | Supply Ability | 1500 tons per month |
| Delivery Time | 10days-> | Packaging Details | Ply-wooden Case /Iron Case/ Bundle with plastic Cap |
| Material Grade | TP316L | Standard | ASTM A312 |
| Hydrostatic Test | ASTM A999/A999M-18 | Nondestructive Electric Test | ASTM A999/A999M-18 |
| Test | Mechanical Test, Transverse Test, Longitudinal Tension Test, Flattening Test, , | Application | ASME BPVC Pressure Vessel |
| Brand Name | YUHONG | Model Number | ASTM A312 TP316L |
| Certification | ABS, GL, DNV, NK, PED, AD2000, GOST9941-81, CCS, ISO 9001-2008 | Place of Origin | CHINA |
| High Light | DNV Stainless Steel Seamless Pipe ，A312 TP316L Stainless Steel Seamless Pipe ，ABS Stainless Steel Seamless Pipe | ||
ASME SA312 U Stamp TP316L Seamless Pipe (Cold Drawn) Chloride Resistance for Pressure Vessels
1. Dimensional Tolerances for Tubing
ASME SA-999 Dimensional Tolerances
Precision cold-drawn seamless tubing per ASME SA-999
OD Tolerance: ±0.10 mm (for OD ≤ 25.4 mm)
Wall Thickness Tolerance: ±10% (minimum ±0.15 mm)
Straightness: ≤1.5 mm/m length
2. Pitting Corrosion Resistance Certification
ASTM G48 Method A | NACE MR0175/ISO 15156 Compliance
Critical Pitting Temperature (CPT): ≥48°C (tested per ASTM G48 Method A)
Test Parameters:
6% FeCl₃ solution at 48±1°C for 72 hours
Acceptance Criteria: ≤1.0 mdd weight loss
Qualified for Sour Service (H₂S environments) per NACE MR0175 Section MR0175 Table A.20
3. Non-Destructive Examination (NDE) Assurance Protocol
A. Hydrostatic Pressure Test
Procedure: Per ASME Sec. VIII UG-99(m)
Test Pressure: 1.5 × Design Pressure (MAWP)
Duration: ≥30 minutes visual inspection (zero leakage acceptance)
Documentation: ASME Form U-1 signed by AI
B. Eddy Current Testing (ET)
Standard: ASME Sec. V Article 8 (Mandatory Appendix II)
Coverage: 100% tube length
Equipment: Differential rotating probe system
Calibration: ASME Calibration Tube Set P3-E2
Defect Rejection: ≥5% wall loss indication
C. Ultrasonic Testing (UT) Option
Supplement Requirement: SA-688 Annex S4 (Austenitic Stainless Steel Tubing)
Method: Automated straight-beam immersion UT
Criteria: No indications exceeding DAC curve (20% DAC reference)
Trigger Condition: If specified by purchaser order
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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