Our company has 20 years' experience!
  • PLOT NO 35, Prasanthi Nagar, Kukatpally, Hyderabad, 500 072, INDIA
  • Info@sandvikpipe.com
About Us

Why We Are Best Manufacturer
Company in The India

At Sandvik, quality is not just a requirement—it’s the foundation of everything we do. Our commitment to quality drives us to manufacture and supply Pipes & Tubes, Pipe Fittings, and Flanges that meet and exceed international standards such as ASTM, ASME, DIN, and EN. We follow strict quality control procedures at every stage—from raw material inspection to final dispatch—ensuring that every product delivers superior performance, dimensional accuracy, and long service life.

We continuously improve our processes through innovation, technology, and customer feedback. Our quality management system is aligned with global best practices, ensuring full traceability, third-party inspections, and adherence to project-specific technical requirements.

Sandvik is dedicated to delivering defect-free products, on time, every time—backed by technical expertise, certified processes, and a customer-focused mindset.

  • Strict Quality Control from raw material to final inspection
  • Third-Party Inspection Approval available as per client request
  • Full Material Traceability and proper documentation
  • Compliance with Global Standards like ASTM, ASME, DIN, EN, and ISO
  • Continuous Improvement through innovation and training
  • Customer-Centric Approach with zero compromise on quality
  • Defect-Free & Timely Deliveries for all orders
  • Certified QA/QC Processes for every product range

Quality Assurance Plan

Quality assurance plan for Seamless Carbon Steel & Alloy Steel Straight Tubes / Pipes

SANDVIK (AN ISO 9001:2000 CERTIFIED COMPANY)
Sr. No Operation Characteristics Type/Method of Check Ref STD. Instrument used Testing arrived used Extend of check %
1. RAW MATERIAL
1.1 Seamless Mother Hollows
[A] Dimension Dimensional Measurement ( OD, THK ) As per Application STD. Micrometer OD & THK SANDVIK As per Q.S.P
[B] Surface Visual Inspection Visual SANDVIK Random Checking
[C] Chemical Checking Chemical check analysis As per Std. & P.O. Req. Spectrometer At out side NABL approved Lab. 01 Sample from each heat lot.
[D] Mechanical Testing Tensile Testing (Yield st., U.T.S. & % EL.) As per approved STD. U.T.M machine SANDVIK On Each lot basis as per QSP
[E] Color Coding Color code chart
2. IN PROCESS CONTROL
2.1 Intermediate 100% Prod. & Q.C Dept. Heat Treatment
[A] Temperature Temp.Monitoring As per Std. & PO Req. Automatic Temp.Controller SANDVIK 100%
[B] Speed & Feed Qty AC Variable Drive Automatic Temp.Controller SANDVIK Speed & feed checking for maintaining soaking time (Depends on OD & THK of the tube )
2.2 Intermediate Pickling % of HCL,% of Fe. Titration method Chemical Testing Lab by Titration SANDVIK Random Check
2.3 Coating Acidity of Phosphating both Fe% Lab. SANDVIK Randomly Check from Each lot
2.4 Drawing
[A] Dimensions Dimensional Measurement ( OD, Thk, Length ) As per Std. & P.O Req. Micrometer OD, Thk & Measuring tape SANDVIK Random Dimensions ( OD, Thk, Length ) As per Application Std. & PO Req.
[B] Surface Visual Inspection Visual SANDVIK Random Checking
2.5 Soap Bath % of Fatly Acid Chemical Testing Lab. SANDVIK Random Check
2.6 Heat Treatment
[A] Temperature Temp. Monitoring As per Appro. Std. & P.O Req. Automatic Temp. Controller SANDVIK 100%
[B] Speed & Feed Depends on Tubes OD & Thk A.C. variable Drive SANDVIK Speed & feed checking for maintaining socking time ( Depends on OD, THK, of the tube )
[C] Mechanical Testing Tensile Testing / Hardness Checking As per Appro. Std. & P.O Req. U.T.M. Machine / Rockwell superficial hardness tester & Rockwell hardness Tester SANDVIK U.T.M. Machine / Rockwell superficial hardness tester
2.7 Pickling HCL % & Fe % Lab. SANDVIK 100% on each lot
2.8 Straightening
[A] Dimensions Dimensional Measurement ( OD, Thk, Length ) As per Std. & P.O Req. Micrometer OD, Thk & Measuring tape SANDVIK Random Dimensions ( OD, Thk, Length ).
[B] Surface Visual Inspection SANDVIK Random Checking
2.9 End Cutting Length Checking Length check by measuring tape As per P.O Req Lab. SANDVIK Random Checking
2.10 Hydro Testing Pressure Testing by keeping of pressure for minimum of 5 seconds. Hydrostatic test As per Std. & P.O Req. Hydrostatic test Bench SANDVIK 100%
2.11 Eddy Current( If applicable) Surface & sub surface condition E.T Method(Non Destructive test) ASTM –A 450/ E-309 Off line eddy current testing machine SANDVIK 100%
2.12 Mechanical Testing for Mechanical Properties
[A] Tensile U.T.S., Yield ST & % El As per Std. & P.O Req. U.T.M M/C SANDVIK Random Tensile test carried out As per Std. applicable
[B] Hardness Testing Hardness testing As per Std. & P.O Req. Rockwell superficial, Rockwell Hardness Tester SANDVIK Randomn Check as per applicable Std.
[C] Flaring, Flatting bend testing As per Std. & P.O Req. SANDVIK Randomn Check as per applicable Std.
[D] Impact Testing As per Std. & P.O Req. Impact Testing Machine Out side NABL approved Lab Randomn Check as per applicable Std.Req.
2.13 Ultrasonic Testing( If applicable) Sub surface condition Non Destructive testing by U.T. method ASTM –E 213& P.O Req Ultrasonic testing machine Outside 100%
2.14 Chemical Testing
Product analysis Chemical check analysis As per Std. & P.O Req. Spectrometer Outside NABL approve Lab. Random testing as per app. STD Req.
P.M.I machine Spectrometer SANDVIK 100%
2.14 Final Cutting Length length measurement by measuring tape As per Std. & P.O Req. Measuring Tape SANDVIK Random check as per application standard Req.
3. FINAL INSPECTION
3.1 Visual Dimensional
[A] Dimensions Dimensional Measurement (OD, Thk, Length ) As per app. Std. Micrometer OD, Thk & measuring tape SANDVIK 100%
[B] Visual ( Surface ) Straightens,End cuts surface checking SANDVIK 100%
3.2 Identification Product marking Stenciling & testing As per app. Std. Marking M/C,marking slates SANDVIK 100%
4. PACKING
4.1 Packing Product delivery condition Visual SANDVIK 100%
5. DOCUMENTATION
5.1 Final documents Compliance to quality system procedure, P.O. Req. & appli. TDC Req. Verification and Review As per quality system procedure & PO Req. (Material Test certi.) SANDVIK 100%