JIS SKD62 DIN 1.2605/X35CrWMoV5 AISI ASTM H12/T20812 BS BH12 Steel Plate
1: AISI H12 steel introduction
AISI H12 tool steel is a 4.75~5.5% chromium, general-purpose hot work steel. H12 tool steel contains (0.2~0.5%) less vanadium than the widely-used H13 hot works tool steel (0.8~1.2%). ASTM/AISI H12 Steel is a deep-hardening, air-hardening steel that exhibits minimal size change during heat treatmnet. H12 tool steel material has good resistance to thermal fatique cracking (heat cracking) and excellent resistnce to gross cracking and thermal shock when water cooled in service. So, we could say H-12 tool steel mainly has the following characteristics:
- Excellent resistance to wear, high strength at elevated temperature.
- Good homogenizing with high toughness.
- Extra- fine- structure without grain-boundary carbide.
- Inclusion shape controlled with high cleanliness.
2: AISI H12 Steel equivalent
| Country |
China |
Japan |
Germany |
USA |
UK |
| Standard |
GB/T 1299 |
JIS G4404 |
DIN EN ISO4957 |
ASTM A681 |
BS 4659 |
| Grade |
|
SKD62 |
1.2605/X35CrWMoV5 |
H12/T20812 |
BH12 |
3: AISI H12 steel chemical composition
| Grade |
C |
Mn |
P |
S |
Si |
Cr |
V |
W |
Mo |
Ni |
Cu |
Sn |
H12/
T20812 |
0.30 |
0.4 |
0.2 |
0.6 |
0.03 |
0.03 |
0.80 |
1.25 |
4.75 |
5.50 |
0.2 |
0.5 |
1.00 |
1.70 |
1.25 |
1.75 |
… |
… |
… |
1.2605
/X35Cr
WMoV5 |
0.32 |
0.4 |
0.2 |
0.5 |
0.03 |
0.02 |
0.80 |
1.20 |
4.75 |
5.50 |
0.2 |
0.5 |
1.10 |
1.60 |
1.25 |
1.60 |
… |
… |
… |
| SKD62 |
0.32 |
0.4 |
0.2 |
0.5 |
0.03 |
0.02 |
0.80 |
1.20 |
4.50 |
5.50 |
0.2 |
0.5 |
1.00 |
1.60 |
1.00 |
1.60 |
… |
… |
… |
| BH12 |
0.30 |
0.4 |
… |
0.4 |
0.35 |
0.35 |
0.85 |
1.15 |
4.75 |
5.25 |
… |
0.5 |
1.25 |
1.75 |
1.25 |
1.75 |
0.4 |
0.2 |
0.05 |
4: AISI H12 steel mechanical properties
| Grade |
Tensile strength |
Yield strength |
Elongation |
Reduction |
Impact Value |
Hardness |
| AISI H12 |
|
|
|
|
|
|
5: AISI H12 steel overviews
| Size |
Round |
Dia 6-1200mm |
| Plate/Flat/Block |
Thickness
6mm-500mm |
Width
20mm-1000mm |
| Process |
EAF+LF+VD+Forged+Heat treatment(optional) |
| Heat treatment |
Normalized ; Annealed ; Quenched ; Tempered |
| Surface condition |
Black; Peeled; Polished; Machined; Grinded; Turned; Milled |
| Delivery condition |
Forged; Hot rolled; Cold drawn |
| Test |
Tensile strength, Yield strength, elongation, area of reduction, impact value, hardness, grain size, ultrasonic test, US inspection, magnetic particle testing, etc. |
| Payment terms |
T/T;L/C;/Money gram/ Paypal |
| Trade terms |
FOB; CIF; C&F; etc.. |
| Delivery time |
30-45 days |
| Application |
AISI H12 tool steel are suitable for Extrusion indushry: dies and inner liner for extrusion, extrusion tools Forging Industry: forming dies, press dies Die casting industry: dies for die-carbideTool Industry: hot punch, hot shear blades, immediate roller for cold rolling etc.. |
6: Delivery condition
For hot forged or hot rolled bar, usually the delivery condition is hot forged or rolled, annealed, rough turned.
For hot forged plate, usually the delivery condition is hot forged, annealed, milled surface.
For hot rolled plate, usually the delivery condition is hot rolled, annealed, black surface.
Hunan Qilu Industrial Co., Ltd has the capacity to forge round steel, steel flat, square steel, module, shaft and roller, etc. The main specifications of the products include Φ80-1000mm forging materials and 80-1200mm square billets and which the maximum piece weight can reach 50T.
Hunan Qilu Industrial Co., Ltd were already engaged in exporting steel for 11 years, could supply a great variety of hot forged, hot rolled and cold drawn Steels, including engineering steel, cold work tool steel, hot work tool steel, plastic mold steel, spring steel, high speed steel, stainless steel etc., besides Qilu Industrial also has their own heating treatment shop and machining shop to provide heating and cutting service.
Since 2008 year, Hunan Qilu Industrial has the right to export all FORGED STEEL behalf of Qilu Speical Steel Co.,ltd which is specialized in smelting and forging of special steel since 1965 year, now Qilu special steel is one of the biggest manufacturer of forged product in China.The forged products are used in Automotive, Aerospace, Power Generation, Oil & Gas, Transportation and Industrial. We already set up the warehouse in Wuxi and Dongguan city, more than 20000 tons ex-stock could be supplied with kinds of size.
Qilu Industrial is the professional one-stop steel manufacturer, stockist and exporter in China, our customers spread all over the world, include West Europe, North America, South America, Asia, Middle Asia, Africa, Australia, etc.
The company owns advanced special steel smelting facilities and forging processing equipments, the main steel-making equipment include 2 sets of 50t ultra-high power electric arc furnaces,2 sets of 60t LF refining furnaces,1 set of 60t vacuum degassing refining furnace and 4 sets of 1-20t electroslag re-melting furnaces.
The main forging equipments mainly include:3 sets of 5t electro-hydraulic hammers, 1 set of high-speed forging units of 800t,1600t,2000t and 4500t respectively.
Mier Lu
Hunan Qilu Industrial CO., LTD
Website: qilusteel.en.made-in-china.com
Tel: 86-731-85185769
Fax: 86-0731-85185771
Mobile/ : +86 1893241249
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