Item |
| Round | Dia 12mm-500mm | |
Flat (*when forged, production width is 4 times than thickness) | Thickness 12mm-400mm |
Width 50mm-800mm |
Chemical Composition (can be customized)
| DIN 1.2379 | C:1.50-1.60, Si:0.10-0.40, Mn:0.15-0.45, Cr:11.00-12.00, V:0.90-1.10, Mo:0.60-0.80, P:≤0.030, S:≤0.030
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AISI/ASTM D2 | C:1.40-1.60, Si:0.10-0.60, Mn:0.20-0.60, Cr:11.00-13.00, V:0.50-1.10, Mo:0.70-1.20, P:≤0.030, S:≤0.030
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JIS SKD11 | C:1.40-1.60, Si:≤0.40, Mn:≤0.60, Cr:11.00-13.00, V:0.20-0.50, Mo:0.80-1.20, P:≤0.030, S:≤0.030
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GB Cr12Mo1V1 | C:1.40-1.60, Si:≤0.60, Mn:≤0.60, Cr:11.00-13.00, V:0.50-1.10, Mo:0.70-1.20, Co:≤1.00, P:≤0.030, S:≤0.030
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Process | EAF+LF+VD+ESR+FORGED/ROLLED+Heat Treatment (Annealed,A Normalized, Q+T) |
Heat treatment | Normalized ; Annealed ; Quenched ; tempered |
Surface Condition/Treatment | Black surface; Grinded/Peeled ; Machined;Turned/Bright |
Inspection | 100% Ultrasonic according to the test standards:SEP1921-84,CLASS C/c or D/d |
Payment Terms | T/T;L/C (30% advance payment by T/T, and 70% should be paid against the color scanned copy of BL by T/T or irrevocable L/C at sight) |
Trade Terms | FOB; CIF; CFR |
Packing | Standard seaworthy packing or as customer required |
Shipping Marks | As Buyer/Seller's option. N/M means no marks. |
Invoicing | According to acctural weight (25 tons). If the acctural weight ≥ 25 tons, pls fill less to the seller for the over weight according to the PI price. |
Size tolerence | 0/+2mm for bright / grinded / machined surface, 0/+4mm for black / peeled surface. |
Length tolerence | 10% shorter length should be allowed. |
Quantity tolerence | -10%/+10% for total quantity. |
Heat Treatment |
Annealing | 800 - 850 °C
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Hardness after Annealing
| Max. 250 HB
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Stress relieving
| 650 - 700 °C
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Hot forming
| 1050 - 850 °C
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Hardening
| 1020 - 1080 °C
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Quenching media
| Oil, Salt bath ( 220 - 250 °C or 500 - 550 °C )Air or compressed air
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Hardness after quenching | 63 - 65 HRC |
Hardness after tempering | 100 °C: 63 HRC, 200 °C: 61 HRC, 300 °C: 59 HRC, 400 °C: 58 HRC. |
| High performance blanking, punching, stamping and cutting tools and dies up to 6 mm sheet thickness, thread rollings,chasers and dies, precision blanking dies, longitudinal and circular shear blades for plastic, paper and metal, cold form-ing and bending tools, tools for drawing, deep drawing and cold extrusion, hobbing tools, woodworking tools, milling cutters, reamers, broaches, pressing tools for the ceramics and pharmaceutical industries, cold piercers, measuring inst-ruments and gauges, rolling cutters and shaping wheels, cold pilger mandrels, beading, flanging and straightening rolls,plastic injection moulds, especially cutting tools of austenitic material when nitrided.
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