L6

L6

Product Overviews

Specification  :

Size round Dia 15mm~500mm
flat Thickness  10mm-400mm
Width   60mm-810mm
Technique Cold Drawn/Cold Pilfered/Cold Rolled/Hot Rolled/forge-
Process EAF+LF+VD+ESR+Forged/Hot rolled + Heat Treatment (Annealed, Normalized, Q+T)
Heat treatment Normalized ; Annealed ; Quenched ; Tempered
Surface Condition Black surface ; Grinded ; Machined/Turned
Inspection 100% Ultrasonic according to the test standards:SEP1921-84,CLASS C/c or D/d
Payment Terms T/T; L/C
Trade Terms FOB,CIF,CFR
Packing Standard seaworthy packing or as customer required

 

Equivalent grades GB AISI DIN JIS
5CrNiMo L6 st4
Chemical Composition C Si Mn Cr P S Mo
0.5-0.60 ≤0.40 0.5~0.80 0.50~0.80 ≤0.03 ≤0.03 0.15~030
Surface condition Black surface/ Grinded/ Machined
Annealed hardness Annealing, 241 ~ 241 hb, creasing 3.9 ~ 4.3 mm in diameter
Characteristics steel alloy element content in low alloy tool steel, also is the traditional hammer forging die steel, with good toughness, strength and abrasion resistance, hardenability, 300 x 300 x 400 mm artifacts can completely hardening. Suitable for making complicated shape, heavy impact load of various large and medium-sized hammer forging die (side length > 400 mm
Applications Hot-work die steel, alloy element content in low alloy tool steel, also is the traditional hammer forging die steel, with good toughness, strength and abrasion resistance, hardenability, 300 x 300 x 400 mm artifacts can completely hardening. Suitable for making complicated shape, impact load heavy variety of large and medium-sized hammer forging die (side length > 400 mm).
Heat treatment Quenching and tempering process Quenching temperature of 600 ~ 650 & ordm, heating temperature to 830 ~ 860 & ordm oil quenching. For large, complex mold, in order to reduce the quenching stress, avoid quenching flaws, can use broken precooling or interrupted quenching oil. After the mould from the furnace, first in air precooling to 750 ~ 800 ℃, and then quenching into 30 ~ 80 ℃ in the oil, until the mold temperature dropped to a little lower than Ms point temperature, air cooling, out of the oil and then as tempering tempering furnace

Production process :

L6

Main Product list

 

STEEL TYPE

Production list
ASTM DIN BOHLER JIS GOST
HOT WORK TOOL STEEL H13 1.2344 w302 SKD61 4Х5МФ1С
H11 1.2343 w300 SKD6 4Х5МФС
H10 1.2365 w320 / 3X3M3Ф
H21 1.2581 / SKD5 3X2B8Ф
/ 1.2367 / / /
COLD WORK TOOL STEEL D2 1.2379 K110 SKD11 /
D3 1.2080 K100 SKD1 Х12
/ 1.2601 K105 SKD11 Х12МФ
O1 1.2510 K460 SKS3 9ХВГ
O2 1.2842 K720 / /
A2 1.2363 K305 SKD12 /
A8 /   / /
D6 1.2436 K107 / /
/ / / DC53 /
S7 1.2357 / / /
L2 1.2210 / / /
  1.2767 K600 SKT6  
PLASTIC MOLD STEEL 420 1.2083 / SUS420J2  
  1.2085 /    
/ 1.2316 / /  
BEARING STEEL 52100 1.3505 / SUJ2 ШХ15

L6

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L6

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