Product name : Chrome bar, piston rod, chrome plated bar, chrome plated rod, chrome shaft, hard chrome plated bar, induction bar, quenched and tempered bar
Diameter: φ6-φ250
Supply condition: Standard chrome plated; induction hard; quenched and tempered
Roughness: Ra≤0.4 micron
Tolerance on OD: ISO f7 on the diameter
Ovality: Half of the tolerance ISO f7
STRAIGHTNESS: ≤0.2MM/M
Q+T Hardness : 220-280 HB (depends on customer requirement )
Induction Hardness: 55-65HRC (depends on customer requirement )
Packing: Anti rust oil to be applied on material and each bar/rod to be packed in paper sleeve
Application: Direction rods, operating rods, adjusting rods, transmission shafts, die casting machines, injection molding machines, fitness equipment, electronic equipment, power tools, light industrial machinery, precision machinery, engineering machinery, packaging machinery, textile machinery, printing machinery, printing and dyeing machinery, mining Used in machinery, woodworking machinery, automation equipment and other various industrial machinery and supporting equipment
CHEMICAL COMPOSITION
Material | C% | Mn% | Si% | S% | P% | V% | Cr% |
CK45 | 0.42-0.50 | 0.50-0.80 | ≤0.04 | ≤0.035 | 0.035 | ≤ 0.25 | |
ST52 | ≤0.22 | ≤1.6 | ≤0.55 | ≤0.04 | ≤0.04 | ||
20MnV6 | 0.16-0.22 | 1.30-1.70 | 0.10-0.50 | ≤0.035 | ≤0.035 | 0.10-0.20 | ≤0.30 |
42CrMo4 | 0.38-0.45 | 0.60-0.90 | 0.15-0.40 | ≤0.035 | ≤0.035 | 0.07-0.12 | 0.90-1.20 |
40Cr | 0.37-0.45 | 0.50-0.80 | 0.17-0.37 | ≤0.035 | ≤0.035 | 0.80-1.10 | |
304 | ≤0.07 | ≤2 | ≤1 | ≤0.03 | ≤0.045 | 18-20 | |
420 | 0.16-0.25 | ≤1.5 | ≤1 | ≤0.03 | ≤0.04 | 12-14 | |
431 | 0.12-0.22 | ≤1.5 | ≤1 | ≤0.03 | ≤0.04 | 15-17 | |
430 | ≤0.12 | ≤1 | ≤0.75 | ≤0.03 | ≤0.04 | 16-18 |
MECHANCIAL PROPERTIES
Material | T.S (MPA) |
Y.S (MPA) |
Elongation % |
CONDITION |
CK45 | ≥610 | ≥355 | ≥15 | NORMALIZE |
CK45 | ≥800 | ≥630 | ≥20 | Q + T |
ST52 | ≥500 | ≥355 | ≥22 | NORMALIZE |
20MnV6 | ≥750 | ≥590 | ≥12 | NORMALIZE |
42CrMo4 | ≥980 | ≥850 | ≥14 | Q + T |
40Cr | ≥1000 | ≥800 | ≥10 | Q + T |
304 | ≥520 | ≥205 | ≥40 | |
420 | ≥635 | ≥440 | ≥20 | |
431 | ≥800 | ≥600 | ≥10 | |
430 | ≥450 | ≥205 | ≥22 |
Tolerance:
Diameter (mm) | ISO f7 (um) | ISO f8 (um) | g6 (um) |
6 <Φ≤10 | -13 to -28 | -13 to -35 | -5 to -14 |
10 <Φ≤18 | -16 to -34 | -16 to -43 | -6 to -17 |
18 <Φ≤30 | -20 to -41 | -20 to -53 | -7 to -20 |
30 <Φ≤50 | -25 to -50 | -25 to -64 | -9 to -25 |
50 <Φ≤80 | -30 to -60 | -30 to -76 | -10 to -29 |
80 <Φ≤120 | -36 to -71 | -36 to -90 | - 12 to -34 |
120 <Φ≤180 | -43 to -83 | -43 to -106 | -14 to -39 |
180 <Φ≤250 | -50 to -96 | -50 to -122 | -15 to -44 |
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