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O1 1.2510 SKS3

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O1 1.2510 SKS3 obstructionum

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Specifications
O1 Tool Steel is the original oil-hardening, “non-shrinking” tool steel that can be hardened to the Rockwell C 65 range from a low austenitizing temperature. O1 is a general-purpose tool steel that is typically used in applications where alloy steels cannot provide sufficient hardness, strength, and wear resistance.

APPLICATIONS: Where greater dimensional stability in heat treatment or improved wear resistance is required, tool steels with higher alloy contents, such as A2 or D2 should be considered.

JUNCTIO

C

Mn

Si

Cr

W

0.94

1.20

0.30

0.50

0.50

De proprietatibus Relativis

1492433770224674

Coefficiens Thermal Expansion (63-64 HRC)

Temperature︒F

in / X × in︒F-6

Temperature︒C

mm / X × mm︒C-6

100-500

5.96

38-260

10.73

100-800

7.14

38-427

12.85

100-1000

7.84

38-538

14.11

100-1200

8.02

38-649

14.44

physica

· Spissitas incolarum, 0.283 / p in3 ((VII)DCCCLXX kg / m7833)

Imprimis · grauitatem: 7.83

· Modulus Elasticitatis: 31 x 106 psi (214GPa)

· Machinability: 85-90% I% de chalybe

1492433836447736

Calor Curatio Responsionis

Aer refrigeratum ab

HRC

1425F(774︒C),30 minuta

62

1450F(788︒C),30 minuta

64

1475F(802︒C),30 minuta

65

1500F(816︒C),30 minuta

65

1600F(871︒C),30 minuta

64

DE INSTRUCTIONIBUS HEAT TREATING

CALLOSITAS

TEMPERATIO svo:

AC1: ° F MCDXL (DCCLXXXII ℃)

AC3: ° F MCDXL (DCCLXXXII ℃)

AR1: ° F MCDX (DCCLXVI ℃)

AR3: ° F MCDX (DCCLXVI ℃)

preheating: Calor certe non excedens 400°F per horam (222°C per horam) ad 1200-1300°F (649-704°C) et coaequare.

Austenitizing (High Heat): Heat slowly from the preheat to 1475-1500°F (802-816C)

Macerari pro 30 minutis pro pollicis primi (25.4 mm) crassitudinis, plus 15 minutarum pro quolibet addito pollicis (25.4 mm).

ebrietas; Oleum temperatura exstingui non minus quam 150-125°F (66-51°C).

Note: O1 is somewhat prone to quench cracking, especially if there are significant changes in section thickness and sharp internal corners. The oil quenching should be performed so that the heat removal is as uniform as possible in all areas of the part being quenched. Be sure to remove the part from the oil before the temperature drops to ambient temperature. Hot oil at a temperature of 300 to 400°F (149-204°C) is recommended.

temperamento: Temper immediately after quenching. Do not allow the part to cool below 125°F (51°C). The typical tempering range is 350 - 400°F (177 -204°C). Hold at temperature for 1 hour per inch (25.4 mm) of thickness, 2 hours minimum, then air cool to ambient temperature. To minimize internal stresses in cross sections greater than 3 inches (76.2 mm) and to improve stability in parts that will be EDM’d after heat treatment, a soaking time of 4 to 6 hours at the tempering temperature is strongly recommended.

Cryogenic Treatment: Refrigeration treatments should typically be performed after the temper, and must be followed by a second temper.

ANNALING

Annealing esse calidum, elapso concessionis working et antequam rursus caecitatem.

Heat at a rate not exceeding 400°F per hour (222°C per hour) to 1425 -1450°F (802-816°C), and hold at temperature for 1 hour per inch (25.4mm) of maximum thickness; 2 hours minimum. Then cool slowly with the furnace at a rate not exceeding 50°F per hour (28°C per hour) to 1000°F (538°C). Continue cooling to ambient temperature in the furnace or in air. The resultant hardness should be a maximum of 212 HBW.

ItemRatio (mm)processDelivery conditione,
per BarDIA1.0 - XXXFrigus-drawing / Centerless molere feceruntClara & Anneal
DIA20 - XXXita decorticavitClara & Anneal
DIA 13-180calidum Rolled& Nigrum superficiem Anneal
DIA LXX - CDcalidum Rolled& Nigrum superficiem Anneal
flat BarT 3.0-20 XW 20-100calidum Rolled& Nigrum superficiem Anneal
Clausus20-200 X 300-800 TRolled calidum calidum & ForgedNigrum superficies / & Machina Anneal
Carmina filumDIA LXX - CDcalidum Rolled& Nigrum superficiem Anneal
rudentisT1.0 - Gratiarum CDLfrigus Rolled& Nigrum superficiem Anneal
T 2.5 - 8.0calidum Rolled& Nigrum superficiem Anneal
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