Technical Specification

Technical

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BS 970 826M40
(EN 26)

GENERAL:
A NICKEL-CHROMIUM-MOLYBDENUM OIL HARDENING STEEL RECOGNISED FOR IT’S HIGH TENSILE STRENTH AND TOUGHNESS.

USES:
SUITABLE FOR GEARS, SHAFTS, PINS, STUDS AND AXLES ETC.

CHEMICAL ANALYSIS:
C SI MN S P
0.36/0.44 0.10/0.35 0.45/0.70 0.040 MAX 0.035 MAX
Cr Mo Ni
0.50/0.80 0.45/0.65 2.30/2.80
TYPICAL MECHANICAL PROPERTIES: (EXAMPLE ONLY)
(EXAMPLE IS FOR "W"CONDITION)
TEN. STRENTH YIELD STRESS ELONG BHN
1025 N/MM2 910 N/MM2 19% 310

HEAT TREATMENT & CONDITION
MOSTLY COMMERCIALY AVAILABLE IN THE ANNEALED CONDITION,BUT OCCASIONALLY FOUND IN THE HARDENED & TEMPERED

SECTIONS
COMMERCIALY AVAILABLE IN BLACK ROUNDS

RELATED SPECIFICATIONS
WERKSTOFF 1.6745,KURZNAME 40NiMoCr10 5

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