The Armour Archive

Craig Nadler

I was not able to find 4140 in sheet form in the USA.

In India if EN24 / 4340 is available then I'm going with that, otherwise I'll look for EN19 / 4140. If I can't find either of them then I'll go with EN9/1055 or EN49/1063 which is available for $3 per kg in small quantities in Meerut, India.

Craig Nadler

The hold up is that I would need to buy 100kg of EN24 / 4340 per thickness of sheet metal that I want. I'm trying to get a sample piece rather then pay around $700 - $800 to see if it is any good.

Craig Nadler

You can only use what you can find available to buy as sheet metal. 4340 has a 270ksi yield strength at a HRC53 hardness and still has a 11% elongation before break. In comparison 4130 has a 208ksi yield strength at a HRC48 hardness with a 11.5% elongation before break. In the USA 4340 is only avail...

Craig Nadler

I received a sample cuirass from India that was made from EN49 (similar to 1063). The hardness measured HRC45. I struck the part of the cuirasss that I measured the hardness of approximately 10 times with the corner of the peen side of a blacksmith's cross peen hammer. It seemed to respond to that t...

Craig Nadler

I received samples of what was claimed to be Chinese 4130 and Indian 4130 sheet metal. The maximum hardness that you should be able to can with 4130 is HRC52. The "high tempered" samples of Chinese 4130 that I received measured HRC62 and cracked very easily. I received an unhardened sample labelled ...

Craig Nadler

My plans for my next steels to test have changed. The list is now EN9 (similar to 1055), EN49 (similar to 1063), and EN24 (similar to 4340) milled in India. I might use look at EN19 (similar to 4140).

Craig Nadler

The problem with high carbon steel is that a large part of the hardness range that can be produced with it is too brittle for use as armour made for armoured combat sports. If you heat treat it correctly and measure the hardness with a diamond penetrator type Rockwell hardness tester you may be fine...

Craig Nadler

I'm planning on testing Indian milled 1030 and Chinese milled 4130 in the next couple of months.

Craig Nadler

viewtopic.php?f=1&t=161852

Craig Nadler

If you don mind heat treating 17-7ph stainless steel then this surplus company has lots of 0.025" 17-7ph SS for sale cheap.

https://onlinemetalsupply.com/stainless ... ory_page=1

Craig Nadler

The current padded coifs in stock for a different design so please look at the new photos. I should have more of the old style in a month or so. I should have 6 sets of the splint leg armour by July.

Craig Nadler

I just added the following: 30HGSA / 30KhGSA (Russia/Ukraine) This alloy is similar to 4130 except that it does not contain any molybdenum. Much of the following information is based on a translation of a research paper on this alloy steel titled "Effect of Tempering on the Facture Toughness of Stee...

Craig Nadler

I've started adding information about titanium to this article. I'm also planning on adding information on 30KhGSA / 30HGSA (Russia/Ukraine) alloy steel.

Craig Nadler

My patterns are either labeled is being from Sinric or Craig Nadler. If it is one of my patterns then I highly recommend starting from the latest DXF formatted CAD version of the pattern that is on my web page.

http://nadler.us/armour.html

Craig Nadler

I'm starting an armour retail sales business. Some of the first wave of items that I've ordered have arrived. A web page for the in stock ready to ship items is shown below. Many more items are on their way. A total of 21 sets of gauntlets of 14 different varieties from 7 different armouries have be...

Craig Nadler

I use a 0.091" 17-7phSS helmet that I made for ACL / IMCF / HMB style steel fighting. I welded the top together in two halves using a MIG with a tri-mix 1% O2 gas and 0.030" 17-7phSS filler wire. The welds on the 0.091" seem to be just fine, but I tried welding 0.040" with the same wire and it eithe...

Craig Nadler

UPDATE TO 65G NOTES AND RECOMMENDATIONS: While fixing the warp in a large number of brigandine plates I noted that 65G at a Rc43 hardness is more brittle than 1050 at the same hardness. If the hardened plates required a fair amount of reshaping then cracking around weak points are a significant prob...

Craig Nadler

Yes, during step 2 - which is the cooling stage I add ice to get the water temperature to where I need it to be. Here's the unit and probe that I use to measure the water temperature with: HH11B (hand held unit): http://www.omega.com/pptst/HH11B.html KHIN-14G-RSC-18 (probe): http://www.omega.com/ppt...

Craig Nadler

The process is as follows: Step 0: Heat the metal to 1950F for about 5 minutes then let it air cool. This anneals the metal so that you are starting for a known state. Step 1: Heat the metal to 1400F for 90 minutes then let it air cool for 5-15 minutes before starting step 2. Step 2: Submerge the me...

Craig Nadler

https://www.youtube.com/watch?v=JOztX_5uO9M

The Facebook thread for this video was posted here:

https://www.facebook.com/groups/1938814 ... 272734080/

Craig Nadler

Not having a temperature controller or even a pyrometer is going to severely limit the usefulness of the results. At minimum I'd recommend buying a hand held test pyrometer. Here's the unit and probe that I use to check the automatic temperature controllers on my kilns: HH11B (hand held unit): http:...

Craig Nadler

The materials that are current on my list to test are when I can get samples are:

1035 (Mexican)
30HGSA (Russian or Ukrainian version of 4130)
st45 (Russian version of 1045)
st30 (Russian version of 1030)
420 Stainless Steel (Ukrainian)

Craig Nadler

viewtopic.php?f=1&t=161852&p=2453977#p2453977

Craig Nadler

The 400C 30 minute temper batches work as expected with a resulting hardness of Rc43. I think that this is the heat treatment that I am going to go with for now.

Craig Nadler

I obtained a fair amount of unhardened 0.8mm Russian 65G (1065) steel. Looking at the 0.65% carbon contain oil rather than water would likely be the better choice for a quenching medium, however not of the other steels that I normally work with use an oil quench. I choose to use a water quench becau...

Craig Nadler

I sold this one and a red goat skin covered fitted COP with tinned spring steel plate around May or June 2014. Both of them have now been resold.

I sent my red silk velvet brigandine with tinned spring steel plates and custom brass brig nails to a buyer in Japan about a month or two ago.

Craig Nadler

If you are going to make c.1400 shoulder armour that are symmetrical then I recommend using these pattern: http://nadler.us/late_14thC_shoulders.html Please note that if you are going to use the early 15th century pattern it has been updated numerous time since it was posted on the Armour Archive pa...

Craig Nadler

The fact that Brand has spent the time and money to go to two Battle of the Nations while still not filling orders that he took 5+ years ago is in my opinion an embarrassment to the steel fighting community in the USA. Seeing as he seems intent on being a part of the steel fighting scene we need to ...

Craig Nadler

boris_: If you already have an Unequal liner then just get the KFlex foam. 1/2" KFlex with Adhesive backing: http://www.zoro.com/k-flex-usa-insulation-sheet-psa-back-36x48x12-in-6rsxg3x4048/i/G1894471/ 1/2" KFlex without Adhesive backing: http://www.zoro.com/k-flex-usa-insulation-sheet-36-x-48-x-12-...

Craig Nadler

Shocktec is very different than Unequal Tech. You CAN NOT use Unequal tech liners alone. Basically in my opinion what Unequal liners do is provide a very dense last chance layer of padding to stop the helmet from bottoming out on your head. Shocktec is dense, but isn't as dense as Unequal so it can ...

Craig Nadler

I've started using 1/2" KFlex padding for ACL/IMCF steel fighting helmets at the Knights Hall. It seems to be a good moderate cost option for this. http://www.zoro.com/k-flex-usa-insulati ... /G1894471/

Craig Nadler

I used 1/4" and 3/8" Shocktec to pad my current helmet. Have a Unequal Tech Gyro http://www.unequal.com/shop/gyro that I use in the previous helmet in IMCF steel fighting. I recommend Shocktec for padding steel fighting helmets, The Unequal Tech liners are backup / supplemental padding and not prima...

Craig Nadler

304 Stainless Steel Perf Sheet Metal up to 1/8" thick:
https://www.onlinemetals.com/merchant.c ... &top_cat=1

Carbon Steel / A36 Perf Sheet Metal up to 1/8" thick:
http://www.onlinemetals.com/merchant.cfm?id=1004&step=2

Craig Nadler

I added a section with notes on 420A stainless steel, but be aware that I was not able to get any material for testing.

Craig Nadler

Just take a full length photo of yourself and send it to me.

Re: Hardened and Hardenable Metals Suitable for Making Armou

Re: Hardened and Hardenable Metals Suitable for Making Armou

Re: Hardened and Hardenable Metals Suitable for Making Armou

Re: Hardened and Hardenable Metals Suitable for Making Armou

Re: Hardened and Hardenable Metals Suitable for Making Armou

Re: Hardened and Hardenable Metals Suitable for Making Armou

Re: Hardened and Hardenable Metals Suitable for Making Armou

Re: Hardened and Hardenable Metals Suitable for Making Armou

Re: Anyone know where to get thin 410?

Re: Anyone know where to get thin 410?

Re: SALE: In Stock Helmets, Gauntlets, Gambesons, etc....

Re: Hardened and Hardenable Metals Suitable for Making Armou

Re: Hardened and Hardenable Metals Suitable for Making Armou

Re: Pattern Sizing

Armour For Sale from Nadler Metal Crafts, Inc.

Re: Welding 17-7 PH stainless steel

Re: Hardened and Hardenable Metals Suitable for Making Armou

Re: Hardened and Hardenable Metals Suitable for Making Armou

Re: Hardened and Hardenable Metals Suitable for Making Armou

Helmet Formed by Squashing Technique Video

Re: Testing heat treatment on 410 steel

Re: Hardened and Hardenable Metals Suitable for Making Armou

Re: ISO-Heat treating and tempering of 4130 plates

Re: Hardened and Hardenable Metals Suitable for Making Armou

Re: Hardened and Hardenable Metals Suitable for Making Armou

Re: Craig Nadler brigandine on eBay

Re: Question: Early 15th cent. Italian shoulders (1400-1410

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Re: Shocktec, Unequal & Sorbothane

Re: Shocktec, Unequal & Sorbothane

Re: Shocktec, Unequal & Sorbothane

Re: Shocktec, Unequal & Sorbothane

Re: Perf plate and welder in New England (northern will be g

Re: Hardened and Hardenable Metals Suitable for Making Armou

Re: Silk Velvet Brigandine with Tinned Spring Steel Plates $