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2016
Quality Assurance :
QA : Cerftificate : Applicable Standard : Lab Test : Inspection

Quality Assurance > QA


QUALITY ASSURANCE
We maintain one of the most strict quality control standards for all of our products to meet the most updated ASTM, ANSI and MSS standard specifications. All fittings are subjected to a comprehensive and stringent company’s established quality assurance system that begins with careful selection of raw material form qualified steel mills and continues through our all production stages up to delivery. We guarantee traceability from the unfurnished pipes to the complete final fittings. Destructive and non-destructive testing such as hardness, tensile, and yield strength tests are performed periodically to ensure consistent high quality.

QUALITY ASSURANCE
TTU’s Butt Welding Fittings are stringently manufactured in accordance to applicable standard ASTM, ANSI, ASME, MSS codes and standards from initial incoming raw material till final shipping. Strict in-process inspections are carried out and tested to ensure conformity to standards.

QUALITY ASSURANCE
Quality, Quantity and Fast Service is the principle of our company.

QUALITY ASSURANCE
Applicable Specifications
TTU Butt Welding Fittings are manufactured according to the following standard.
Specifications
• Dimensions, Shapes &Tolerance
ANSI B 16.9
ANSI B 16.28
• Weld End Preparation
ANSI B 16.25
• Manufacturing Methods
ASTM A234
ASTM A403
ASTM A420
• On Application
MSS SP-43
MSS SP-75

Applicable Specifications
TTU Butt Welding Fittings are manufactured according to the following standard
Specifications
• Dimensions, Shapes &Tolerance
ANSI B 16.9
ANSI B 16.28
• Weld End Preparation
ANSI B 16.25
• Manufacturing Methods
ASTM A234
ASTM A403
ASTM A420
• On Application
MSS SP-43
MSS SP-75

QUALITY ASSURANCE
Inspection Procedure
Raw Material
• Dimensional Inspection
• Surface Visual Inspection
• Traceability Identification
• Random Physical and Chemical Analysis

QUALITY ASSURANCE
Inspection Procedure
In-Process Inspection
• Visual Inspection
• Dimensional Inspection
• Shape Inspection
• Hardness Test
• Forming Temperature Check
• Traceability Identification
• Ultrasonic Examination
• Magnetic Particle Examination
• Liquid Penetrate Examination
• Ultrasonic Thickness Check
• Impact Test

QUALITY ASSURANCE
Inspection Procedure
Final Inspection
• Third Party Inspection (on demand)
• Visual Inspection
• Special Inspection (on demand)
• Inspection Certification issued
• Quantity Survey
• Packing Inspection



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