• Scr420Hb Gear Steel,17Crnimo6 Gear Steel,16Mncr5 Gear Steel
  • Scr420Hb Gear Steel,17Crnimo6 Gear Steel,16Mncr5 Gear Steel

Scr420Hb Gear Steel,17Crnimo6 Gear Steel,16Mncr5 Gear Steel

  • Negotiable Get Latest Price
  • SMC
  • Shanghai, China
  • 5 Ton / Tons
  • T/T L/C D/P D/A MoneyGram Credit Card PayPal
  • 0 per Month
  • Shanghai
Packaging Details Standard Seaworthy Packaging
Product Description

SMC is professional supplier of gear steel, supply a wide range of quality alloy steel, such as 20 CrMo, 30 CrMo, 35CrMo and 42CrMo which are highly acclaimed by our international customers due to its durability and similar other attributes. We also supply other grades like 20CrMnMo, 21NiCrMo5H, 20CrMnTi,20MoCrS4HL, 28MnCr5,37CrS4HL, SAE4121M, SAE5120M, SAE5130M,40Cr,42CrMo,35CrMo,C38N2,53Q,53L,1080,Y15,Y40Mn,45S20.

1. Available size: round bar, flat bar, cutting and slitting can be customized as customers requirement.2. Delivery state: shot blasting on surface, end chamfered.

Specification of Gear Steel:1) Chemical composition

Unified digital codeSteel GradeCSiMnCrMo
A3020220 CrMo0.17-0.240.17-0.370.40-0.700.80-1.100.15-0.25
A3030230 CrMo0.26-0.340.17-0.370.40-0.700.80-1.100.15-0.25
A3035235 CrMo0.32-0.400.17-0.370.40-0.700.80-1.100.15-0.25
A3042242 CrMo0.38-0.450.17-0.370.50-0.800.90-1.200.15-0.25

2) Mechanical Properties 

Steel gradeTensile strength (σb/MPa)Yield point (σb/MPa)Elongation (δ5/%)Reduction of Area (ψ/%)Impact absorbing Energy (Aku2/J)Brinell Hardness (HBS100/3000)
Annealing or High Tempering
20 CrMo885685125078197
30 CrMo930785125063229
35 CrMo980835124563229
42 CrMo1080930124563217

3) The comparison table for each standard

Steel GradeGB T 3077-1988JIS G4103-4105ASTM A29ISO
20 CrMoGB 20CRMOSCM4204118A30202
30 CrMoGB 30CRMOSCM4304130A30302
35 CrMoGB 35CRMOSCM4354135A30352
42 CrMoGB 42CRMOSCM4404140A30422

Application of Gear Steel- Transmission gears for sedan cars, trucks, heavy-and medium-duty vehicles, etc- Steel for gears with small or medium modules- Transmission gears for automobiles and engineering machinery

Feature of Gear Steel:

- High fatigue resistance- Good plasticity in cold condition- High quality with competitive price- Good combination property

 Packaging of Gear Steel:

All our products are guaranteed to be packed, stored and transported according to the highest international regulations. We care deeply about the quality of our products down to even the smallest detail. We wrap all stainless steel products with anti-rust paper and steel rings to prevent damage. Our storage racks are made of wood and other kinds of metals are placed in other places, far from the stainless steel. Any unwanted chemical reaction can be prevented. Identification labels are tagged according to standard specification or customer's instructions. Special packing is also available as per customer's requirement.

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