AD 2000 Merkblatt W7/W10

Round Bars 10–500 mm in QT1, Rm= 800-950N/mm2
Flat Bars 20–95x40 mm in QT1, Rm= 800-950N/mm2

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Conforms with: , , , , , , , , , , , , , , , , , , , , , , ,

Material properties: Tensile Strength 800–950 MPa, Yield Strength 600– MPa, Working temperature –580 °C

Equivalent or similar: ASTM A565 GRADE 616HT OR ASTM A437 GRADE B4B, Z21CDV12

Creep resisting steel, hardened and tempered. Usual upper temperature limit for continuous operating at 580°C. Components featuring elevated high-temperature strength for use in thermal engines and power plants, such as turbine blades, turbine discs, screws, bolts, pins and shafts.

Round Bars 10–500 mm
Hex Bars 10–50 mm

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Material properties: Tensile Strength 900–1050 MPa, Yield Strength 750– MPa, Working temperature 0–580 °C

Creep resisting steel, hardened and tempered. Usual upper temperature limit for continuous operating 580°C, Using: Bolts, Nuts, Turbine Blades, Steam Valve and Turbine components SIMILAR BUT NOT AN EQUIVALENT TO AISI 422 SS

Round Bars 10.72–120 mm
Hex Bars 22–55 mm

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Conforms with:

Material properties: Tensile Strength 860– MPa, Yield Strength 720– MPa, Working temperature –450 °C

Equivalent or similar: AISI 4140, SA320-L7, 1.7225 / 42CrMo4+QT, 42CD4

USA fasteners grade ASTM / ASME with Europe certifications. PED and ADW. Charpy min. 27J

Round Bars 10,68–100 mm

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Conforms with:

Material properties: Tensile Strength 530–710 MPa, Yield Strength – MPa, Working temperature – °C

Equivalent or similar: DIN X12Ni5/12Ni19, ANFOR 5Ni, ANFOR Z10N05, JIS SL5N590, AISI 2515, AISI 2517, AISI A2515, UNS E2517, UNS K41583