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BOHLER/ ASSAB
GRADE
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COLOUR CODE
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AISI/ BS
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DESCRIPTION/ APPLICATION
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FORMS AVAILABLE
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17 - 4 PH
BOHLER N700
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BROWN PINK
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630
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Martensitic precipitation hardening stainless with high strength and hardness with good corrosion resistance. Chemical process equipment, pump shafts. Marine fittings, fastners. Low temperature hardening minimizes distortion.
Usual supply condition is solution annealed. Some sizes in Condition H900 or H1100.
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Rounds
ø 6 - ø 450
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416
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GREEN PINK
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416
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High Chromium free machining stainless for shafts, axles, gears, pinions, fastners.
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Rounds
ø 16 - ø 102
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431
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BLACK BLUE
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431
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Heat treatable Stainless grade. Pump & compressor shafts, plungers, spindles, valves, glass moulds
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Rounds
ø 16 - ø 178
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440C
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440C
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Martensitic Chromium Steel with Cobalt, Molybdenum & Vanadium for manufacture of knife blades, surgical instruments, slitting knives, needle valves. Martensitic Chromium Stainless Steel for hardened tools & components, cutting tools requiring high corrosion resistance and durable cutting edges e.g. knives for food industry.
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Sheet
3.25 mm t
to
25 mm t
Rounds
ø 25.4 mm-
ø 101.6 mm
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UDDEHOLM
CORRAX
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A precipitation hardening steel with very good corrosion resistance.Can be age hardened to 50 HRC. Suitable for Ion/Plasma nitriding.
Use for manufacturing plastic moulding and extrusion tools;machine components..
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Available on
INDENT
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NEW
BOHLER &
UDDEHOLM
GRADES
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Please see Plastic Mould tool
steel section.
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Available on
INDENT
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N678
N695
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Martensitic Chromium Steel with Cobalt, Molybdenum & Vanadium for manufacture of knife blades, surgical instruments, slitting knives, needle valves. Martensitic Chromium Stainless Steel for hardened tools & components, cutting tools requiring high corrosion resistance and durable cutting edges e.g. knives for food industry.
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Sheet
3.25 mm t
to
25 mm t
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