DIN120WV4/1.2516 Steel Round bar

CHEMICAL COMPOSITION

C: 1,15 - 1,25; Mn 0,20 -0,35; Si 0,15 – 0,30; P MAX. 0,035; S MAX. 0,035; Cr 0,15 – 0,25; V 0,07 – 0,12; W 0,90 – 1,10

DELIVERY: HEAT TREATMENT ANNEALED 219 / 223 HB

SURFACE FINISHING: CENTERLESS GROUND

DIAMETERS: FROM 1mm TO 30mm ON RISING RANGE OF 0,25mm AND USUAL IMPERIAL SIZES.

DIAMETER TOLERANCE: AS PER DIN 175 OR EQUIVALENT IS O h9.

AS PER REQUIREMENT WITH TOLERANCES h 8 OR h 7

DELIVERY LENGTHS: 1000MM-6000MM

QUALITY: HIGH PRECISION EN SIZES; OPTIMAL MACHINABILITY ON ANNEALEAD STATUS; DEFECTS AND DECABURISATION FREE; EXCELENT FINISHING AND STRAIGHTNESS.

HEAT TREATMENT

TEMPERATURE ADVISED ON CELSIUS DEGREES.

TEMPER TEMPERATURE: 760 – 820 C. 800 – 840 (recommended for Controlled Atmosphere furnaces )

MEAN OF COOLING

Diam > or equal to 12mm WATER (20 TO 30 C )

Diam < or equal to 12MM OIL (50 TO 60 C)

HARDNESS AFTER TEMPER: 64 – 66 RC

TEMPERED AND QUENCHED: WE SUGGEST TO TREAT PIECES I M MEDIATELY AFTER FAST COOLING TO ELIMINATE TEMPER STRESS.

QUENCHED TEMPER: CHANGE FROM 100 TO 400 C DEPENDING ASKED HARDNESS ON STATUS OF USE.

GRADES: 100 C 200 C 300 C 400 C

RC: 65 62 57 51

REFFERED TO A TRANSVERSAL ROUND SECTION 30mm AND 30 MINUTES OF QUENCHED.

PROTECTION: SLIGHT RUSTPROOF OIL