© 2015 NGK BERYLCO. All rights reserved.

Sitemap

Careers

Carreers Site map

Download

Brochures

Contact Us

Contact us

B25 HM

B25 HMB

Alloy

Type

Temper

Tensile Strength

(Mpa)

90° bending R/t

Long.

Trans.

Berylco 25

CuBe2

CW101C

C17200

Type B

1/2HMB

830 - 930

0.0

0.0


HMB

930 - 1030

1.0

1.0


XHMB

1070 - 1210

2.0

2.0


XHMSB

1210 - 1310

3.5

6.0

Type S

HM-Type S

960 - 1040

0.5

0.5


XHM-Type S

1060 - 1220

1.0

1.0

Typical R/t of 0.15mm thickness samples

Formability of New NGK Berylco Strip products

Comparison of bending formability


Comparison of bending formability test of B25 HM (standard) and B25 HMB (New Grade ‘Type-B’).

Photos show the 90º bending test results (Bad Way, R/t = 1.0, thickness 0.2mm). There are micro cracks on the usual product B25 HM, but new grade B25 HMB has no cracks. Good Formability is achieved in new grade ‘Type B’ and ‘Type S’. Both alloy tensile strength is equal to 1000 N/mm².

New Alloys - Better formability at equal strength


Mill-hardened Alloy B25 ‘Type-B’ and ‘Type-S’


Features


New grade ‘Type-B’ and ‘Type-S’ mill-hardened Berylco 25 have been developed by refinement of the manufacturing process for improved formability.

The bend radius ratio(R/t) of ‘Type-B’ is half that of the usual mill-hardened alloy.

The bend radius ratio(R/t) of ‘Type-S’ is one quarter that of usual due to crystal-grain-size-control.

Mill-hardened alloy is pre-aged (hardened) in the mill. Using mill-hardened alloy frees our clients from the troublesome aging process.



.



Properties Alloys Products Miniaturisation Strip Formability Berylco alloys Properties Strip Alloys Spring and miniaturisation

Products