Japanese Material Specs. 2

[pclegg25]

Could anybody help me or point me to the right direction to find British equivalents for Japanese materials.

I'm trying to order tooling from drawings with the following descriptions : -

S45C

SS400

A20179-T4 (I think this is a carbon alloy alumium)

YH52

STS38

I am struggling to source equivalents!

Also the A20179-T4 has a 30micron coating of "Kashima", now I have never even heard of this. Is this or a coating with similar properties available in the UK?

Thanking you in anticipation,

Paul

 

[TVP]

S 45 C is a plain carbon steel, with a C content of 0.42-0.48. Equivalent BS grades would be C 45 according to BS EN 10083-2 (old BS 970 Part 1 grade 080 M 46) for bars or BS 1449 50 HS or CS for plate, sheet, & strip.

SS 400 is from JIS G 3101, Rolled Steels for General Structure. Stahlschluessel lists no requirements other than max P & S = 0.050. Equivalent German grade is given as 1.0040, which has the following composition:

C = 0.25 max
Si = trace
Mn = 0.20-0.50
N = 0.007 max

I do not believe A20179-T4 is the proper designation. A201 is an aluminum casting alloy, and 2017 2019 are wrought aluminum alloys. T4 is a temper designation - solution treated and naturally aged. Please confirm the designation. The Kashima note is likely referring to a 30 micron anodic coating. It has been used by Yamaha for reducing friction on front motorcycle forks.

YH52 appears to be aluminum alloy 5052, which is BS EN 573-2 grade EN AW-5052 [AlMg2.5].

STS38 is an old designation for the new grade STS 370 according to JIS G3455, Pipes for High Pressure Service. Composition is C = 0.25 max, Si = 0.10-0.35, Mn = 0.30-0.90, P & S = 0.035 max. BS 3602, 3603, or 3604 may be equivalent standards.

 

[pclegg25]

Thankyou very much TVP. Most helpful!

Regards,
Paul

 

[LesPaul82]

I also have this problem but with the materials

SWPA

and

SUJ7

 

[TVP]

I could not find reference to either of these grades. SUJ 1, SUJ 2, ... SUJ 5 are bearing grades according to JIS G 4805. Perhaps SUJ 7 is a new grade. Is it possible that the grade is supposed to be SUP 7? This is a spring steel with the following composition:

C = 0.56-0.64
Si = 1.80-2.20
Mn = 0.70-1.00
P & S = 0.035 max
Cu = 0.30 max

This grade is similar to SAE 9260 (or 9260H) or 60 Si 7 (EN 89, DIN 17221)

 

[LesPaul82]

Thanks a lot. That helped me out.

 

[LesPaul82]

Sorry I just realized that that answer was for British standards. I actually need the North American standard. If anyone has this info, it would be appreciated.