Low Alloy Steels

BRITISH STANDARDGRADESU.S.A.Hardness BHNUTS (N/mm2)PROPERTIES

BS3100: 1991

BT1

ASTM A148 Grades 105-85

201-279 690

NI/CR/MO STEELS GOOD COMBINATION OF STRENGTH TOUGHNESS & FATIGUE RESISTANCE

BT2

ASTM A148 Grades 120-95

248-327 850

BT3

ASTM A148 Grades 150-125

293-362 1000

B1,B2,B3,B4

ASTM A217 Grades WC1,WC6,WC9

- 460-540

CR/MO STEELS FOR USE AT ELEVATED TEMPERATURES, SOME CORROSION AND CREEP RESISTANCE

B5,B6

ASTM A217 Grade C5,C12 - 620
BW2 - 201-255 -

CHROME STEELS- ABRASIVE RESISTANT FOR WEAR TILES, HAMMERS, STRIKER PLATES etc 

BW3 - 293 min -
BW4

-

341 min -

Mechanical properties are minimum unless shown as a range.

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All specifications and material data in this site is intended as a reference guide only and not intended to replace that shown in national or international standards to which full reference should always be made. Foreign equivalents are approximate and some modifications may be necessary to comply fully. Micron Alloy Castings assume no responsibility for errors in, misinterpretation of, the information in this web site or in its use.