ASTM A128 Grade B-3 Material Test results

As per requested by customer, MnSteels started to manufacture ASTM A128 Grade B-3 manganese steel wear parts recently. Compare to our existing materials, its lack of chromium gives the material great tensile strength.

The material:

C: 1.05-1.22

Mn: 13.00-14.25

Si: 0.35-0.80

P: ≤0.055

S: ≤0.030

Cr:≤0.80

Ni:≤0.50

Cu:≤0.50

Mo:≤0.80

Al: 0.02-0.05

Test Results:

 

Test Group 1

Test Group 2

Test Group 3

tensile strength Rm(N/mm) 1

840

785

810

tensile strength Rm(N/mm) 2

835

790

820

Elongation(%)1

34

35

36

Elongation(%)2

34

35

37

Impact AKv(J)1

170

162

176

Impact AKv(J)2

170

162

170

Impact AKv(J)3

166

170

172

Impact AKv(J)4

162

162

170