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mikejapan Member Posts: 215	Spring Steels Nov 21, 2010 6:41:40 GMT Quote Select Post Deselect Post Link to Post Back to Top Post by mikejapan on Nov 21, 2010 6:41:40 GMT What is the difference between 5160 and 9260 steel? Mikejapan

TomK
Member
Senior Forumite

Posts: 2,377

Spring Steels Nov 21, 2010 8:11:51 GMT

Quote

Post by TomK on Nov 21, 2010 8:11:51 GMT

the 51 and the 92. different elements are used to achieve the same effect. unless you are a smith there are a lot of fiddling little details differences you don't need to worry about. if you are a smith or intend to make a sword out of these you are asking in the wrong place, and you need a lot more technical info than you are likely to get here.

from a sword owner and user's standpoint the differences are very slight. I have sharpened and polished and cut with many swords made of both types of steel and the only difference I can really say jumps out at me is that 9260 tends to give way under abrasives faster than 5160, but the difference is not one you'd likely notice unless you have sharpened a lot of swords. both steels are very good for swords and whether a sword made from them is going to be any good or not is going to matter entirely on the maker and how it was made.

Sharpening stuff: sbg-sword-forum.forums.net/thread/15462/sharpening-polishing-methods

chuckinohio
Senior Forumite

Posts: 3,376

Spring Steels Nov 21, 2010 9:02:24 GMT

Quote

Post by chuckinohio on Nov 21, 2010 9:02:24 GMT

The difference is-

AISI 9260

Category Steel
Class Alloy steel
Type Standard
Common Names Silicon-manganese steel
Designations France: AFNOR 60 S 7 , AFNOR 61 SC 7
Germany: DIN 1.0909
United Kingdom: B.S. 250 A 58
United States: ASTM A29 , ASTM A322 , ASTM A331 , ASTM A505 , ASTM A519 , ASTM A59 , SAE J1268 , SAE J404 , SAE J412 , SAE J770 , UNS G92600

Composition

Element Weight %
C 0.56-0.64
Mn 0.75-1.00
P 0.035 (max)
S 0.04 (max)
Si 1.80-2.20

Mechanical Properties

Properties Conditions
T (°C) Treatment
Density (×1000 kg/m3) 7.7-8.03 25
Poisson's Ratio 0.27-0.30 25
Elastic Modulus (GPa) 190-210 25
Tensile Strength (Mpa) 1758 25 oil quenched, fine grained, tempered at 425°C more
Yield Strength (Mpa) 1503
Elongation (%) 8
Reduction in Area (%) 24
Hardness (HB) 600 25 oil quenched, fine grained, tempered at 205°C more

AISI 5160

Category Steel
Class Alloy steel
Type Standard
Common Names Chromium steel
Designations United States: ASTM A322 , ASTM A331 , ASTM A505 , ASTM A519 , SAE J404 , SAE J412 , SAE J770 , UNS G51600

Composition

Element Weight %
C 0.56-0.64
Mn 0.75-1.00
P 0.035 (max)
S 0.04 (max)
Si 0.15-0.30
Cr 0.70-0.90

Mechanical Properties

Properties Conditions
T (°C) Treatment
Density (×1000 kg/m3) 7.7-8.03 25
Poisson's Ratio 0.27-0.30 25
Elastic Modulus (GPa) 190-210 25
Tensile Strength (Mpa) 722.6 25 annealed at 815°C more
Yield Strength (Mpa) 275.8
Elongation (%) 17.2
Reduction in Area (%) 30.6
Hardness (HB) 197 25 annealed at 815°C more
Impact Strength (J)
(Izod) 10 25 annealed at 815°C more

They are same same for all intents and purposes.

What works for 5160 seems to work just as well for 9260 as far as heat treating goes.

Brendan Olszowy
Manufacturer/Vendor

Posts: 1,035

Spring Steels Nov 22, 2010 2:53:15 GMT

Quote

Post by Brendan Olszowy on Nov 22, 2010 2:53:15 GMT

Yep, chemical wise the specs are the same apart from the addition of a little bit of chromium (0.7- 0.9%). Nowhere near as much chromium as a stainless blade though, which will often contain 12 to 20%.
Chromium is added to an alloy to assist the depth penetration of hardening in the quench, and makes it more responsive to heat treatment. However it can make the steel more temperamental during forging, increasing the likelyhood of cracks.

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Spring Steels

Post by mikejapan on Nov 21, 2010 6:41:40 GMT

Post by TomK on Nov 21, 2010 8:11:51 GMT

Post by chuckinohio on Nov 21, 2010 9:02:24 GMT

Post by Brendan Olszowy on Nov 22, 2010 2:53:15 GMT

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