Alloy Bars
- Location: China
- FOB Price: 1000 ~ 1250 / Metric Ton
- Minimum Order Quantity: 20 Metric Ton
- Supplying Ability: 1000 Metric Ton / Month
- Payment Type: D/P, T/T
Product Description
- Steel Grade: 4140, 42CrMo
- Standard: ASTM, EN, AISI, DIN
- Dimensions: Dia 150mm - 900mm
- Brand Name: ZYICO
- Technique: Forged
- Alloy Or Not: Is Alloy
- Type: Alloy Steel Bar
- Chemical Requirements:
Analysis on cast. To be in accordance with table below
Required For Information only
Recomme ndationC Mn Si P S Cr Mo Ni Al H 0.4/0.43 0.75/1.00 0.15/0.35 ≤0.025 ≤0.025 0.90/1.10 0.15/0.25 ≤0.25 0.02/0.05 ≤2ppm Note: Mn aim 0.9 min, P: 0.01 min, S: 0.01 min, Cr 0.95 min, Mo: 0.20 min, P+S: 0.04 max.
Mechanical Properties Required :
On material at the time of supply.
- Sampling:
Material shall be test per heat and per heat treat load, once Tensile and Three impact.
Test practice in accordance with ASTM A 370-03 and ASTM A-434 CL BC, test specimens shall taken with the longitudinal axis located at 1” bellow surface.
Surface Yield/Re 0.2% offset Tensile/Rm 2” Elongation Area Red. Charpy V Note BHN PSI PSI A % Z % Ft-lbs 1KSI=6.895MPa 285-341 110, 000 140, 000 ≥14 ≥45 36 J 1ft-lbs=1.356J Report 0.6% eul for inform only Surface hardness aiming for 2850321 BHN 25.4 MM sub surface cheking at least 4” or 102 mm from end of bar: 285-360BHN, aiming for 285-302BHN
General requirements:
Forging reduction ratio:≥4:1
Austenite grain: As per ASTM E112-latest, grade 5-8
Guarantee no crack, no flake, no shrnk hole, no pin hole
Mercury free: non radioactive, no welding. Decarburization is allowed for the RT and then QT bars.
Hardenability: as per ASTM A304-90, J1-J32, testing is to be carried out in accordance with the ASTM A255-03 on speciments make from re- forged square or round samples 30-35mm in diameter.
Non-metal inclusion: As per ASTM E45-latest method A:A Heavy A Thin B Heavy B Thin C Heavy C Thin D Heavy D Thin 2.0 max 2.0 max 1.5 max 2.0 max 1.0 max 1.5 max 1.0 max 1.5 max Aim for 0.5 max 1.0 max 1.0 max 1.5 max 1.0 max 1.5 max 1.0 max 1.5 max
Surface condition: rough turned, required a surface finish of 500 RMS or better
End hole: removed the ends holes.
Dia. Tolerance: -0/+2mm.
Out of roundness: within 1.9 mm. Straightness: max. 2mm/m.:≤1.9mm, 2mm/m.
Forged Bars surface grinding allowed, Must not remove surface bellow nominal diameter.
Material shall be untrasonic tested in accordance with ASTM A388 4mm FBH.
In accordance with API 6 A PSL 3 and EN 10228 Class 3, gu
Company Profile
- Zhongyuan International Group Co., Limited
- [ Hong Kong ]
- This company is registered as a free member and is not verified or authenticated by Tradekey.com
-
Zhongyuan International has developed important relationships with global suppliers, and we have experience dealing with the culture differences that can make Global Sourcing complex. These personal relationships are the key to successful importing and building mutual trust and understanding. We are committed to making you competitive with low-cost components, and guarantee good parts on-time f...
Basic Information
- Company Products / Services: carbon steel forgings, alloy steel forgings, tool steel forgings, die blocks, forging shaft, cylinders, rotors, rudder stock, forging stabilizers, drill collars,
- Year Established: 1976
- Number of Employees: 100+
- Website: http://www.zyico.com