China Hot Sale ASTM4140, GB42crmo, JIS SCR440, DIN 1.7225 Cold Drawn Hexagon Structural Steel Bar, Find details about China Steel Bar, Hexagon Steel Bar from Hot Sale ASTM4140, GB42crmo, JIS SCR440, DIN 1.7225 Cold Drawn Hexagon Structural Steel Bar
ASTM4140 GB42crmo JIS SCr440 cold drawn carbon Alloy Hexagon Steel Bar
Chemical composition
C | Si | Mn | P | S | Cr | Mo |
0.38-0.43% | 0.10-0.35% | 0.75-1.00% | ≤0.035% | ≤0.040% | 0.80-1.10% | 0.15-0.25% |
Equivalent Steel Grade
Din 1.7225
42CrMo4
JIS SCM440
GB 42CrMo
ASTM 4140
Mechanical Properties
Tensile Strength (MPA) | Yield Strength (MPA) | Reduction (%) | Elongation (10%) | Impact Strength (Aku2/J) | Hardness (HB) |
1080 | 930 | 12 | 45 | 63 | Anneal≤217HB Q+T 28-32HRC |
Shapes | Sizes | Processing |
Steel Round Bar | 5mm to 63.5mm | Cold Drawn |
Steel flat Bar | 63.5mm-120mm | smooth-turned and polished. |
Cold drawn steel square bar | 5*5mm to120*120mm | Cold Drawn |
Cold drawn steel hex bar | 5mm to120mm | Cold Drawn |
Cold drawn steel hexagonal bar | 5mm to 120mm (side to side) | Cold Drawn |
Straightness | Max 1mm/m | |
Tolerance | h9 h10 h11 or as required |
Dimension (mm) | Tolerance deviation grade | |||||
Grade h8 | Grade h9 | Grade h10 | Grade h11 | |||
3.01-6.0 | 0-0.012 | 0-0.018 | 0-0.030 | 0-0.048 | 0-0.075 | |
6.01-10.0 | 0-0.015 | 0-0.022 | 0-0.036 | 0-0.058 | 0-0.090 | |
10.01-18.0 | 0-0.018 | 0-0.027 | 0-0.043 | 0-0.070 | 0-0.110 | |
18.01-30.0 | 0-0.021 | 0-0.033 | 0-0.052 | 0-0.084 | 0-0.130 | |
30.01-50.0 | 0-0.025 | 0-0.039 | 0-0.062 | 0-0.100 | 0-0.160 | |
50.01-80.0 | 0-0.030 | 0-0.046 | 0-0.074 | 0-0.120 | 0-0.190 | |
h7 :grinding product h8 :high-precision cold drawn product h9:precision cold drawn product | h10:standard cold drawn product h11:special shaped cold drawn product |
Product variety | The length of finished product | Length tolerance |
Cold drawn product | 1000-6000 | 0-+20 |
Grinding product | 1000-4000 | 0-+20 |
Product mode | Straightness tolerance |
Standard cold drawn | 0.7/1000~0.5/1000 |
Precision and high precision | 0.4/1000 |
Product mode | Grinding | High precison cold drawn | Precision cold drawn | Stardard cold drawn |
Surface roughness Ra(um) | 0.40 | 0.80 | 1.60 | 3.20 |
Type of steel | GB | ASTM(SAE) | JIS |
Carbon steel Low alloy steel | Q195,Q215, Q235,Q345 | A285MGr.B A570MGr.A | SS330 SS400,SS490... |
Quality carbon steel | 10,20,35,40,60 20Mn,25Mn, 35Mn,40Mn | 1010,1020,1035, 1045,1060,1022, 1026,1037,1039 | S10C,S20C, S35C,S45C... |
Alloy structure steel | 20Mn2,40Mn2,20Cr,40Cr, 20CrMo,35CrMo,42CrMo, 20CrMnTi,20Cr2Ni4, 40CrNiMo | 1320,1345,5120, 5140,4118,4135, 4140,3316,4340 | SMn420,SMn438, SCr420,SCr440 SCM430,SCM435 SCM440,SCN815 SNCM439 |
Cold heading steel | ML10,ML20,ML30, ML35,ML35CrMo, ML42CrMo,ML15MnB | 1012,1020,1030 1034,4135,4140, 1518 | SWRCH10R SWRCH20K SWARCH35K SNB7 |
Spring steel | 65Mn,60Si2Mn,50CrVA | 1066,6150 | SCP6,SCP10 |
Bearing steel | GCr15 | E52100 | SUJ2 |
Stainless steel | 1Cr13,2Cr13 | 412,420 | SUS410,SUS420 |
Tooling steel | T8,T10 W6Mo5Cr4V2 | W1A-8, W1A-9.5,M2 | SK7,SK4,SKH9 |
Free cutting steel | Y12,Y12Pb,Y15, Y15Pb,Y40Mn | 1212,11L08,1215 12L13,12L14,1141 | SUM21,SUM32, SUM22L,SUM42... |
Round steel | Square steel | Flat steel |
hexagonal steel | Irregular steel | Steel pipe |
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