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 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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