EN 10204-3.2 TÜV Germany

Round Bars 10–500 mm
Hex Bars 15–50 mm

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Material properties: Tensile Strength 700–850 MPa, Yield Strength 550–1 MPa, Working temperature 0–550 °C

Equivalent or similar: 20CDV5-07, CSN 15320.5, CSN 15320.6, 24CrMoV, 25KH1M1F, 25KH1MF

For the manufacture of steam turbine bolts, nuts, studs, spindles, bushes and other components.

Round Bars 10–180 mm
Hex Bars 18–36 mm

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Material properties: Tensile Strength 600–750 MPa, Yield Strength 440– MPa, Working temperature 60– °C

Equivalent or similar: Similar chemical composition with 42CrMo4+QT and SA 193-B7/SA320-L7 but with lowest Carbon content and lowest Tensile Strenght. AISI 4130, SS2225, GOST 20KHM, 30KHM, 30KHMA, G25CrMo4, 1.7258 / 24CrMo5, 1.7219 / 26CrMo4 Mechanical conform with DIN EN 898-1 grade 5.6 and DIN EN 898-2 grade 5.0

Usualy used for high and low temperutare bolting. Charpy RT min 60J

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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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 6,5–310 mm

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Material properties: Tensile Strength 895– MPa, Yield Strength 725– MPa, Working temperature 0–700 °C

Equivalent or similar: A-286 Grade 660, 660A, 660B, 660C, 660D, UNS S66286 : ASTM A638 (VO1.03), A453 (VO1.01), 1.4943, 1.4944, Z6NCT25, Z5NCTDV26-15B, Z6NCTDV25-15

Austenitic precipitation hardened (PH) stainless steel. It has excellent creep strength and can be used at higher temperatures (up to 700°C) than the 12% CrMoV martensitic stainless steels. Application: Pressure equipment, high temperature bolting, steam turbines, nuclear reactors, gas turbines, rocket engines, jet engines, exhaust systems, cryogenics.

Round Bars 14–350 mm

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

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

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Material properties: Tensile Strength 860–1060 MPa, Yield Strength 730– MPa, Working temperature -100–450 °C

Equivalent or similar: SA 193-B7, SA320-L7, AISI 4140, SCM440H, 42CD4, 708M40, SS2244, GOST 35KHM, 38KHM, DIN EN 898-1 class 8.8 and DIN EN 898-2 class 8.0

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

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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