NEW-ERA STEEL TUBE TECHNOLOGY CO.,LTD
| Supply Ability | 2000tons per month |
| Delivery Time | 35days |
| Packaging Details | packing in standard seaworthy packages. |
| Application | Bearing |
| Keyword | 30CrNiMoH alloy tubing precision tubing |
| Materials | 8620 8620H AISI8620 30CrNiMoH |
| Surface | Customized |
| Type | Cold Drawn |
| Size | OD:10-120mm;WT: 2-10mm;Length:1-12000mm |
| Shape | Round |
| Product Name | Cold Drawn Seamless Steel Tube Bearing Steel Pipe GCr15 100Cr6 |
| Brand Name | New-Era |
| Model Number | ASTM A534 |
| Certification | ISO9001 ISO14001 TS16949 |
| Place of Origin | China |
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Product Specification
| Supply Ability | 2000tons per month | Delivery Time | 35days |
| Packaging Details | packing in standard seaworthy packages. | Application | Bearing |
| Keyword | 30CrNiMoH alloy tubing precision tubing | Materials | 8620 8620H AISI8620 30CrNiMoH |
| Surface | Customized | Type | Cold Drawn |
| Size | OD:10-120mm;WT: 2-10mm;Length:1-12000mm | Shape | Round |
| Product Name | Cold Drawn Seamless Steel Tube Bearing Steel Pipe GCr15 100Cr6 | Brand Name | New-Era |
| Model Number | ASTM A534 | Certification | ISO9001 ISO14001 TS16949 |
| Place of Origin | China | ||
| High Light | 30CrNiMoH Cold Rolled Seamless Tube ，Carburizing Astm Seamless Pipe | ||
Products Description:
20CrNiMoH/8620H properties is a carburing alloy steel specification as ASTM A534/GB3077
Other Related Specifications ASTM A295/A295M DIN EN 10083/3 JIS G4053 DIN17210
Chemical compostion
Mass fraction (%):
Carbon C: 0.17-0.23
Si: 0.17-0.37
Mn: 0.60-0.95
Sulfur s: allowable residual content ≤ 0.035
P: allowable residual content ≤ 0.035
Cr: 0.40-0.70
Ni: 0.25-0.75
Mo: 0.20-0.30
Cu: allowable residual content ≤ 0.30
Mechanical property:
Sample blank size
15mm
[heat treatment]
Quenching temperature (℃): 850; coolant: Oil
Tempering heating temperature (℃): 200; coolant: empty
20CrNiMo round steel
20CrNiMo round steel
Tensile strength σ B (MPA): ≥ 980 (100)
Yield strength σ s (MPA): ≥ 785 (80)
Elongation δ 5 (%): ≥ 9
Reduction of area ψ (%): ≥ 40
Impact energy Akv (J): ≥ 47
Impact toughness value α kV (J / cm2): ≥ 59 (6) Brinell hardness (hbs100 / 3000) (annealing or high temperature tempering state): ≥ 197
Delivery status: delivered in heat treatment (normalizing, annealing or high temperature tempering) or non heat treatment status, which shall be indicated in the contract.
20CrNiMo steel was originally 8620 in American AISI and SAE standards. The hardenability is similar to that of 20crni steel. Although the Ni content of the steel is half of that of 20crni steel, the upper part of the isothermal transformation curve of austenite moves to the right due to the addition of a small amount of Mo element, and the hardenability of the steel is still very good due to the proper increase of Mn content, and the strength is also higher than that of 20crni steel. It is often used to manufacture the gears in the engine and transmission system of small and medium-sized automobiles and tractors; it can also replace 12crni3 steel to manufacture the carburizing parts and cyaniding parts with high core performance, such as the claws and cones of the roller bits used in oil drilling and metallurgical open pit mining. 20CrNiMo is resistant to certain temperature due to its molybdenum content, in addition to its good comprehensive properties. The forging of connecting rod and valve section of gear rotor internal combustion engine used for manufacturing steam turbine.
Delivery status: hot rolled or forged steel shall be delivered in hot-rolled (forged) or annealed state. Cold drawn steel
is delivered in annealed condition.
| Cold drawn and Cold rolled bearing tubes tolerance control level | |||
| Outer Diameter | Diameter Tolerance | Outer Diameter | Diameter Tolerance |
| (mm) | (mm) | (mm) | (mm) |
| ≤12.70 | ±0.08 | >50.80～63.5 | ±0.25 |
| 12.7～25.40 | ±0.10 | >63.50～76.20 | ±0.30 |
| >25.4～38.10 | ±0.15 | >76.20～101.60 | ±0.40 |
| >38.1～50.80 | ±0.20 | >101.60～203.20 | ±0.50 |
| Remark:Tolrance on outer diameter and Inner diameter,wall thickness can be specified by customer requested, | |||
Production Size Range:
OD: 10-210mm
WT: 2-30mm
Length: 2-5.8m
Bearing and Gearing Steel Tube Characteristic:
High strength
High-precision
Good Surface Quality
Stable quality
Smooth Roughness
Production Processs:
Seamless Cold Drawn or Seamless Cold Rolled + Heat Treatment or Stress released control
Company Details
Business Type:
Manufacturer
Year Established:
1988
Total Annual:
100000000-15000000
Employee Number:
150~200
Ecer Certification：
Verified Supplier
Zhejiang New Era Steel Tube Technology Co., Ltd is one of the best seamless steel tube products manufacturer and exporter in china. Our main products include cold drawn and cold rolled seamless steel tubes .We can manufacture non-standard and special application tubes, also according to the int... Zhejiang New Era Steel Tube Technology Co., Ltd is one of the best seamless steel tube products manufacturer and exporter in china. Our main products include cold drawn and cold rolled seamless steel tubes .We can manufacture non-standard and special application tubes, also according to the int...
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