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74 Reviews
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Weld Stud Material:select Copper Flashed Mild Steel A2 Stainless Steel Aluminium Alloy Exotic Materials inc. Brass, Bronze and 316s/s below to switch product or see our range
Out of Stock
Shipping options
UK courier shipping
2 days (next day if placed mon-thu pre-midday)
(£6.50 to Calibrate Account Holders)
£17.50
Economy Shipping
Send via. Royal Mail Large Letter
4 - 6 days
£6.50
Local pickup from our Northampton warehouse
—
£0.00
Find a local distributer
We supply many UK based Distributors
Immediate in-store pickup near you. We can take payment immediately and have your studs waiting for you at one of our preferred welding supply re-sellers
Our network of independent welding suppliers are all stocked with Studfast's superior stringently quality controlled studs. Look for the Studfast Quality assurance label on the bag. That way you can be assured of producing quality welds on your job, every time, but collect immediately from a store near you. We always send out a re-supply too, so in the unlikely event that THEY are out of stock, we will notify you immediately and rest assured your studs will be immediately on their way to your local welding supplier, reserved only for you.
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General specs
- Material:Mild Steel Copper Coated
- Manufacturing Certification:ISO 13918
- Threading Spec.:
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Pip Length Specifications
- The pip on the end of the stud is the timing mechanism for the entire weld. As such we are militant about testing all our studs to ensure not only apparent physical consistency, but also consistency in the welds they produce.
- Length of Pip:1mm target length (We determine accepted variance by testing)
- Pip Diameter:0.5mm with 0.012mm variance - (between 0.588 and 0.612mm)
The Studfast ISO 13918 Capacitor Discharge Studwelding Stud Specification Drawing
Our drawing available below clearly illustrates the key dimensions essential for consistent, quality welds. Our drawing is created with clarity in mind overviewing the key factors in the ISO specification. Should you require an exhaustive CAD drawing of the exact spec, just fire us an email and we will provide one for you.
Download the ISO 13918 Drawing
Download the The Studfast ISO 13918 Capacitor Discharge Studwelding Stud Specification Drawing here. Just click the button above. Should you require an alternative format, please don't hesitate to send us an email.
Stud Length Characteristics
- Our stud length specifications are measured as LAW meaning 'Length after Weld'. This is because during the weld process some of the parent material is blown away as weld spatter, (albeit minimal for the CD process.) Also some of the material is turned to plasma and a further volume of the material is liquified, filling the weld cavity and moving to the edges of the stud. What we are looking for in a good quality weld is a uniform 'witness' of a minimal solidified molten metal ring around the edges of the stud flange. Later we will discuss cone angle which is there to help this process.
- Stud Length: LAW (Length After Weld)
- Accepted VariancePlus or minus 0.6mm
- Should you be getting LAW Length After Weld measurements exceeding this variance then that would indicate a problem in setup. Call our experienced team and we will be there to help you rectify any issues, free of charge. Calibrate customers also benefit from unlimited preferential 24/7 support, on site visits or virtual troubleshooting over Zoom (preferred), Skype or Facetime
Weld Specific Attributes (as detailed on our ISO 13918 drawing)
- The Studfast ISO 13918 Capacitor Discharge Studwelding Stud Specification Drawing illustrates some design features that must be stringently controlled to ensure quality welds. Firstly, while the end of the stud may look flat to the naked eye, there is in fact a shallow angle causing the pip to protrude further out, giving a conical end. This design feature is essential to ensure the weld pool that begins vaporising and liquifying at the centre, is evenly worked outward during the weld, aided by the spring pressure in the weld head or hand tool.
- Angle Marked 'ΘCA' (for Cone Angle):2.2 degrees to 3.8 degrees
- N.B.// This Cone Angle is greatly exaggerated in our drawing to illustrate its existence and make it clear what the 'ΘCA' placeholder is referring to
Certificate of Conformity
- Your online purchase includes a Certificate of conformity. This will be emailed to you immediately upon your purchase. Metallurgy certificates and other supporting documentation is available upon request. Ideally shoot us an email, (received directly by our technical team,) or call our main line and speak to a human immediately, (no frustrating voice menus,) who will be able to deal with your request 24/7.
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74 Reviews
4.1 Overall rating58 out of 74 (77%)
Customers recommended this product
5
4
3
2
1
Review from Our Customer by L Clarkson
Leicestershire83% of users found this review helpful
Studfast are the sort of supplier I like - the parts just arrive when they are supposed to without any issues ,
- Pros: Speedy delivery, always accurate
- Cons: None that I can think of
Review from Our Customer by S Rigler,
Basingstoke97% of users found this review helpful
We have used Studfast for over 12 years and have always found them to be extremely helpful and very knowledgeable; I would not hesitate to recommend them.
- Pros: Real people, who care about customer service
- Cons: n/a
Review from Our Customer by D Ridgwell,
Portsmouth75% of users found this review helpful
Fantastic quality, expert advice and speedy delivery. Our precision applications demand all these three and in nine years Studfast have never disappointed
- Pros: Product Consistency... this is KEY for us. My previous supplier provided studs with intermittent reliability
- Cons: Did not initially mention ability to schedule orders for volume discount, but that is a minor minor point 🙃
Write a review
Mild Steel Stud Welding supplies, including capacitor discharge weld studs,
We also sell stud welding machines and other materials of studs including capacitor discharge weld studs in aluminium alloy, brass cd weld studs, aluminium studs, stainless steel cd studs, cd studs in mild steel and cd stud welding equipment and stud welding hand tools. But we aren't just an online shop. We are a team of experts who have been working with our clients over the years, across many different engineering fields. We believe in providing excellent technical support and regularly run tests in-house on behalf of our clients and make site visits to sort out any issues should they arise in production on the shop floor. But for us to be able to troubleshoot issues with our customers we must be sure they are using consistent quality studs and reliable equipment.
Why for Mild Steel CD Weld Studs, Quality is Paramount
Stud welding customers who buy their studs from Studfast are assured by our Quality Guarantee. At Studfast we have a mantra, "Our Studs, Our Machine, Our Problem"... this means that if you are using our CD weld studs and a machine supplied by us, (either purchase or rental,) if you should encounter any problems in production then we will make it our problem too. We have travelled as far as Cornwall to visit our customers factories, however usually our experienced team can troubleshoot common setup problems over a zoom or phone call and have you up and running again in minimum time
While there will always be cheaper products out there, we stand by the quality of our Mild Steel Studs for capacitor discharge welding. You see the pip on the end of the cd stud is critical as it provides the timing mechanism for the weld. There are many suppliers who try to create our product with sub-standard materials or heading techniques. Inconsistent pip lengths mean poor quality welds and lengthy production downtime or potentially costly quality recalls. Don't but cheap, buy smart. When you buy from Studfast, you're also buying our thirty plus years experience in the industry, (incorporated in 1988.) Whatever problem you're facing may be new to you, but we guarantee it won't be new to us. Make the smart move. Buy a Studfast product today.
Other Materials and Products we Offer;
Cheaper together
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