Cold Drawn Steel Tube Seamless Alloy Engineering Steel Pipe +A
Condition 42CrMo4 with Black Surface
42CrMo4 steel pipe is ultra-high strength steel, with high strength
and toughness, hardenability is also good, no obvious temper
brittleness, quenched and tempered after a higher fatigue limit and
anti-impact ability, low temperature impact toughness is good.
The steel is suitable for manufacturing large and medium-sized
plastic molds requiring a certain strength and toughness.
|Steel Grade||Chemical composition (%)||Mechanical properties|
|C||Si||Mn||P||S||Cr||Mo||Tensile strength (MPa)||Yield strength (MPa)||Elongation (%)|
|Thermal processing specification||Heating temperature 1150 ~ 1200 ° C, the starting temperature 1130
~ 1180 ° C, the termination temperature> 850 ° C, φ> 50mm,
|Normalizing specification||Normalizing temperature 850 ~ 900 ° C, baked air cooled.|
|High temperature tempering specification||Tempering temperature 680 ~ 700 ° C, baked air cooled.|
|Quenching and tempering||Preheat temperature 680 ~ 700 ° C, quenching temperature 840 ~ 880
° C, oil cooling, tempering temperature 580 ° C, water or oil cold,
hardness ≤ 217HBW.|
Beveled end, plain end, vanished, or adding plastic caps to protect
the two ends as per customer's
1. Bundle packing.
2. Bevelled end or plain end or warnished as per buyer's required.
3. Marking: as per customer's requests.
If you have any suggestion or inquiry of products, please don't
hesitate to contact me.