Alloy Steel with 1.2510 Cold Work Tool Steel Supplier O1 Sks3 JIS Flat Steel Plate Sheet Pipe Block Round Bar

• Standard: AISI, ASTM, DIN, JIS
• Special Use: High-strength Steel Plate, Wear Resistant Steel, Silicon Steel, Free Cutting Steel, Mold Steel
• Transport Package: Customization
• Specification: Customization
• Trademark: Ningbo Ningshing
• Origin: China
• Model NO.: 1.2510
• Production Capacity: 10000 Tons/Year

Product Description

Alloy Steel with 1.2510 Cold Work Tool Steel Supplier O1 Sks3 JIS Flat Steel Plate Sheet Pipe Block Round Bar

Ningshing Precision Machinery began in 1992. We devote oneself to providing One-Stop Solutions to our customers on Tool Steel, Die Steel, Alloy Steel, Mold Base, Machining Parts, CNC Machine.

Product Description

 

 

DIN 1.2510 / AISI O1 / JIS SKS3 Cold Work Tool Steel, its typical applications is making blanking, forming, and trim dies, gages, slitting cutters, punches, bolster dies, knock-out pins, thread roll dies, bending dies, plastic mold dies, shims, cams, machine ways, stamps, machine parts, jigs, cutter templates, swaging dies, etc.

Dimensions
Round: dia.10-500 mm
Flat: 6-120 x 40-1200 mm
Block: 80-400 x 100-1200 mm

Delivery Condition
EAF+(ESR) or EAF+LF+VD+(ESR), Hot rolled or Forged, Spheroidizing Annealed, Black surface or Machined surface, UT SEP1921 Class3 D/d

Equivalence

AISI / SAE	DIN / W.Nr	JIS	GB
O1	1.251	SKS3	9CrWMn / CrWMn

Chemical Composition(%)

Steel Grade	C	Si	Mn	P	S	Cr	W	V
1.2510	0.90-1.05	0.15-0.35	1.00-1.20	≤ 0.030	≤ 0.030	0.50-0.70	0.50-0.70	0.05-0.15
O1	0.85-1.00	0.10-0.50	1.00-1.40	≤ 0.030	≤ 0.030	0.40-0.70	0.40-0.60	≤ 0.30
SKS3	0.90-1.00	≤ 0.35	0.90-1.20	≤ 0.030	≤ 0.030	0.50-1.00	0.50-1.00	--

Characteristics

1. A kind of low-alloy cold work tool steel
2. With certain hardenability and wear resistance, homogenous and small particle carbides.

Forging Technique

Heat Temperature	Start Forging Temperature	Finish Forging Temperature	Cooling Method
1150 - 1200 °C	1100 - 1150 °C	≥920 °C	Slow cooling

Heat Treatment
Annealing
The recommended annealing practice is to use controlled-atmosphere furnaces. If these are not available, pack-anneal in an inert material. For a quick annealing cycle to develop fair machining properties, heat slowly to 1375 to 1425°F. and cool slowly in the furnace. To develop the lowest hardness and best spheroidization for optimum machinability, heat slowly to 1450°F. and furnace cool at 20 degrees per hour to 900°F. The piece may then be removed from the furnace and cooled in air. Hardness after this cycle will be Brinell 202 max.

Stress relieving
When desirable to relieve the strains of machining, heat slowly to 1050°-1250°F, allow to equalize, and then cool in still air (Strain Relieving).The recommended annealing practice is to use controlled-atmosphere furnaces. If these are not available, pack-anneal in an inert material. For a quick annealing cycle to develop fair machining properties, heat slowly to 1375 to 1425°F. and cool slowly in the furnace. To develop the lowest hardness and best spheroidization for optimum machinability, heat slowly to 1450°F. and furnace cool at 20 degrees per hour to 900°F. The piece may then be removed from the furnace and cooled in air. Hardness after this cycle will be Brinell 202 max.

Hardening
After thorough prhe hardening furnace, operating from 1450°-1500°F, depending on the size of the part.Warm slightly before charging into the preheat furnace, which should be operating at about 1100°-1200°F.

Tempering
O1 is generally tempered in the range of 300°-600°F. Tempering temperatures and resulting Rockwell C hardness, based on a 1 inch round samples oil quenched from 1475°F and tempered for 2 hours, are as follows:

Tempering Temperature °F	Rockwell °C
300	65
350	63
400	62.5
450	61
500	60
600	57

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