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Hardbanding ED & TEST VED O APPR

For Oil and Gas drilling


Technical Performance DataSheet (TPDS)

13CF 16XS 10SS Optimized Performance • Crack Free Design • Casing Friendly • Optimized Tool Wear Resistance • Flexible Rebuild Design

Description: OTW 10SS is an exclusive gas shielded, metal cored alloy wire, specifically designed for use in severe sour (SS) environments and is fully compatible with all drill pipe sour service grades. Drill pipe sour service grades (VM 105 DP SS™, TSS™-105, CYX™-105) and HWDP differ greatly from normal API grades and use a modified form of steel on the pipe body and tool joints. This alloy is formulated to be non-cracking, easy to apply and repair, with low dilution and minimal pre-heat temperatures. The reduced overall hardness is designed to optimize performance in even the most severe sour environments. OTW 10SS is formulated to produce a unique, hard tool-steel microstructure with numerous ultra-fine/ultra-hard phases, dispersed in a tough tempered martensitic matrix. OTW 10SS produces an excellent, non-spatter bead in both appearance & quality, ensuring greater flexibility & increased arc stability between 100 to 400 AMP operating ranges”. Reducing labor costs, OTW 10SS offers a high deposition rate with exceptional, all-position welding ability. The result is a cost-effective solution for multi-purpose hardbanding applications, including Drill Pipe Tool Joints, HWDP Tool Joints & Center Wear Pads.

Overview: • Designed for Sour Service • Casing friendly • Easy to re-apply • Ideal for multiple layer applications • Excellent weldability

OTW10 hardbanding alloy applied on a tool-joint

12Ti 13CF 16XS 10SS

Compatibility Conclusions: OTW 10SS Old Hardbanding

New Hardbanding






12Ti 13CF


13CF 16XS 16XS

Product A Product B Product C Product X


Original Hardbanding worn arrow

New Hardbanding

Worn Hardbanding BOX

Previous coating or rebuilded surface


Product A – This product is non compatible and has cracking and galling issues Product B – Leading Ti containing repair product Product C – Leading overall in non-cracking Product X – Leading non-cracking, casing friendly product with poor open hole performance After rewelding with OTW 10SS over the 7 welded hardbanding alloys, all the hardbanding overlay is examined visually for cracks and then cut and polished to study the interface between the new and old hardbanding products. There should be a smooth transition with no crack formation and the micrographs of transition zone between different alloys and OTW 10SS are recorded and studied. OTW 10SS has been shown to be not only fully compatible (interchangeable) with itself, but also with the other products in the OTW range, OTW16 XS, OTW12 Ti and OTW13 CF plus the most commonly used hardbanding alloys available in the market today.

12Ti 13CF 16XS 10SS

Non-Cracking Design (NCD) Most hardbanding products have a high hardness and different thermal expansion coefficient to that of the tool joint material that they are welded to. These mechanical differences plus the thermal stress created during welding results in high tensile stresses in the hardbanding layer, which are usually relieved by controlled cracking of hardbanding. The OTW range are all Non-Cracking Designed alloys. Not only this NCD feature give advantages in reducing casing wear, but when OTW 10SS is used it can save up to 75% of re-application costs compared to when using commercial products that are cracking. The table below demonstrates the reduction in the number of processes required with its consequential significant cost reduction. OTW 10SS is designed to be crack free on tool-joints, this has been done for over 6 years and with continuous success when the welding procedure in the OTW Hardbanding Application Manual is followed.


Traditionnal Cracking alloy

Castolin OTW 10SS

Removal of previous hardbanding layer

Heavy grinding / Machining / Plasma gouging


Mild steel build up layer



Mild steel layer machining / grind



Apply new hardbanding


Yes *Only cleaning or slight grinding

Production and Quality Control

12Ti 13CF 16XS 10SS

Casing Wear Testing Casing wear testing was done in the Mohr test machine following latest (API) protocol. This uses T95 casing material for all new wear tests.


Mohr T95 Casing Wear (%)

14 12 10 8 6 4 2 0

S-135 TJ-steel


OTW 12Ti


Tool Joint Wear Testing Tool Joint wear testing is done on the ASTM G65 wear test machine, which is widely used in the industry.

(gram loss)

ASTM G65 Abrasion Wear Test Procedure “A”

3 2.5


2 1.5 1 0.5 0

Bare Tool Joint Steel


Product X


Product X - Widely used non-cracking Hardbanding

Performance Data Overview Performance Data Overview Hardness HRC 53-58 G65 Test data 1 layer, loss (g) 0,969 Mohr Wear Tests (2012) TJ wear in O/H Mohr (in loss) 0,0583

TJ Wear in Casing Mohr T-95 Inch loss



Casing Wear Casing Wear %, Mohr CW Factor 13CF Friction factor Est. revs. To 87% nom. wall

16XS 10SS

6,17 1,07 0,41 Infinite

Sour Service Fields

12Ti 13CF 16XS 10SS

12Ti 13CF 16XS 10SS

Contacts OilTec & Hardbanding

Global Division Director Doug Yono +971 56 759 4708

NAFTA & Brazil Ted Thames +1 713 826 6031

Europe & Russia Hans Erik Elven +47 911 35167

Business & Technical Support Manager Bengt Larsson +47 958 76500

Asia & China Antonio Fu 傅爱军 +86 21 5046 1405 ext 115 +86 1381 7361 629

Middle East & Africa Bill McDougall +971 506 449 243 bill.mcdougall@

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Ask for a demonstration from our Application Specialists.