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Polished Round Hot Rolled Steel Bar ASTM 4135 / EN 34CrMo4 1.7220 Grade
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Brand Name:UST
Model Number:ASTM 4135
Certification:ISO 9001:2008
Price:USD 800-2000 / Metric Ton
Payment Terms:L/C, T/T, D/A, D/P
Supply Ability:1000 Metric Tons per Month
Delivery Time:15-35 days
Company Data
Active Member
Contact Person
Eric
Business Type:
86-21-35316960
Business Type:
Manufacturer Distributor/Wholesaler Agent Exporter Trading Company Seller
Officials:
Room 1109, Loft Office, Green Land International Plaza, No. 275-8 Guoding East Road, Shanghai 200433, P.R. China. (admin(a)shunitesteel.com)
Quality:
Quality Certifitation Available
Product Details
Company Profile
Product Details
INTRODUCTION
Alloy steel 4135 is a low-alloy steel containing chromium and molybdenum as strengtheners. The alloy is capable of being heat treated to good strength levels while maintaining reasonable toughness.
APPLICATIONS
This alloy finds applications in the aerospace, oil and gas, auto and defense industries. It is used in the production of forged shafts, spindles, fixtures, jigs and collars.
SUPPLY RANGE OF ALLOY 4135
-Dimension: Diameter 4-1600 mm, any length below 16 meters
-Delivery Conditions:
Cold drawn: 4-100 mm
Peeled: 30-160 mm
Grinded: 4- 600 mm
Turned: 130-1200 mm
Hot rolled: 12-320 mm
Hot forged: 130-1600 mm
-EAF+(ESR) or EAF+LF+VD+(ESR)
-HOT rolled; Cold rolled; Forged; Cold Drawn
-Heat Treatment: Untreated, Annealing, N+T, Q+T
-Smelting: EAF+LF+VD (+ESR)
-Surface Finish: Black, Rough Machined, Peeled, Turned or upon request
-UT 100% passed
-Cutting service provided
-Third Party inspection is acceptable (SGS, BV etc.)
AISI 4135 Steel Specification and Relevant Standards
| Country | USA | German | Japan | China | Australia |
| Standard | ASTM A29 | DIN 17200 | JIS G4105 | GB/T 3077 | AS 1444 |
| Grades | 4135 | 1.7220/ 34CrMo4 | SCM435 | 35CrMo | 4135 |
ASTM 4135 Steels And Equilvalents Chemical Composition
| Standard | Grade | C | Mn | P | S | Si | Cr | Mo |
| ASTM A29 | 4135 | 0.33-0.38 | 0.70-0.90 | 0.035 | 0.040 | 0.15-0.35 | 0.80-1.10 | 0.15-0.25 |
| EN 10250 | 34CrMo4/ 1.7220 | 0.30-0.37 | 0.60-0.90 | 0.025 | 0.035 | 0.40max | 0.90-1.20 | 0.15-0.30 |
| JIS G4105 | SCM435 | 0.33-0.38 | 0.60-0.90 | 0.030 | 0.030 | 0.15-0.35 | 0.90-1.20 | 0.15-0.30 |
AISI Alloy 4135 Steel Mechanical Properties
| Properties | Metric | Imperial |
| Bulk modulus (typical for steel) | 140 GPa | 20300 ksi |
| Shear modulus (typical for steel) | 80 GPa | 11600 ksi |
| Elastic modulus | 190-210 GPa | 27557-30458 ksi |
| Poisson’s ratio | 0.27-0.30 | 0.27-0.30 |
| Hardness, Brinell (annealed and conld drawn) | 187-229 | 187-229 |
| Hardness, Knoop (converted from Brinell hardness) | 230 | 230 |
| Hardness, Rockwell B (converted from Brinell hardness) | 94 | 94 |
| Hardness, Rockwell C (converted from Brinell hardness. Value below normal HRC range, for comparison purposes only) | 15 | 15 |
| Hardness, Vickers (converted from Brinell hardness) | 218 | 218 |
| Machinability (based on AISI 1212 as 100 machinability) | 70 | 70 |
PROCESSING
FORGING
AISI 4135 grade alloy steel is forged at a temperature of around
2200ºF (1205ºC) and could be forged down to a temperature of
approximately 1700ºF (925ºC). The alloy may be slow cooled after
forging or transferred to a furnace held at what may be the finish
forging temperature. Such a treatment would in fact amount to a
type of annealing treatment.
HEAT TREATMENT
Annealing:For optimum machinability, this grade of steel should be
annealed to give a microstructure of coarse pearlite with a minimum
of ferrite. From an austenitizing temperature of 1575ºF (855ºC) the
steel is cooled to 1400ºF (760ºC) then to 1230ºF (665ºC) at 35ºF
(19ºC) per hour, or to 1250ºF (675ºC) and holding for 4 hours, for
an iso-anneal. In both cases the final step is an air cool.
NORMALIZING
This steel is normalized at 1600ºF (870ºC) followed by air cooling.
HARDENING
The steel will be austenitized at 1550 – 1600ºF (845 – 870ºC)
followed by water or oil quenching, depending upon size and
intricacy of section.
TEMPERING
The steel will be tempered at temperatures to meet required
mechanical properties, based on past experience.
MACHINABILITY
This grade is readily machinable following correct and appropriate
heat treatment.
WELDABILITY
The steel may be welded by normal fusion methods, but only in the
annealed or normalized conditions. The steel should not be welded
following harden and temper operations. Pre-heat and post-heat may
be required, as per past experience.
What we can offer?
-We offer a wide range of steel products in a wide variety of dimensions and executions, according to the common international specifications or customize.
-Machining and heat treatment are available.
-Also, we advise you in choosing the right materials.
Shape Available
- Solid round bar
- Flat bar
- Square bar
- Hexagon bar
- Block
- Plate
- Sheet
- Wire rod
- Strip
Our Advantages
- High mechanical property and quenching, enable the surface share equal hardness after deal with it
- Good polishing and low roughness
- Making the heat-treatment to harden condition before using it
- Competitive price
- Fast production lead-time
- All the material are inspected with 3 times to meet the highly standards
- Pure steel quality & stable quality to be guarantee
OUR MAIN PRODUCTS ARE LISTED AS BELOW
Notes:
Available Size:
-Round: Dia. 4 -1600 mm
-Flat: T. 10-120 mm x W. 60-810 mm
-Block: T. 80-1200 mm x W. 100-1600 mm
PAYMENT AND SHIPPING
1. Both T/T and L/C will be acceptable
2. Trade Terms: FOB, CIF, CFR
3. The delivery will be in 10-15 days if have stock; For customized items, the delivery will be negotiated by both parties
4. Shipping by sea freight from Shanghai Port (PRC) for Bulk orders, by airfreight or express for samples
COMPANY INFORMATION
Shanghai Unite Steel Trading Co., Ltd
We are committed to integrate engineering steel resources in china and serve the global engineering steel market. Our company has more than 15 years of experience in steel researching, production, managing and sales. And our team mostly are based on and worked in national famous steel enterprise.
In the aspect of resources and information, we have established cooperative and stronger relationship with nearly hundred enterprises, either state-owned or private owned in china.
What’s more, we have built long, deep and close business relationship with dozens of steel company, Sharing and holding equities with several steel enterprises. Because of the close cooperation with steel companies and our pioneering spirit, which can ensure us stay at the top competition, and ensure our customers get what they really want!
FAQ
Q: Are you a manufacturer or merely a trader?
A: We are group of companies and owned manufacturer bases and
trading company. We specialized in special steel which include
alloy structural steel and carbon steel and stainless steel, etc.
All material are with high quality and competitive price.
Q: How do you guarantee the quality of your product?
A: Firstly, we can provide the certificates from the third party,
such as TUV, CE, if you need. Secondly, we have a complete set of
inspection system and every process is checked by QC. Quality is
the lifeline of enterprise survival.
Q: Delivery time?
A: We have ready stock for most of material grades in our
warehouse. If the material doesn't have stock, the delivery lead
time is about 5-30 days after receiving your prepayment or firm
order.
Q: What is the payment term?
A: T/T or L/C.
Q: Can we visit your company and factory?
A: Yes, warmly welcome! We can book the hotel for you before you
come to China and arrange our driver to our airport to pick you up
when you come.
CONTACT US
We are happy to answer your questions and make you an offer for these and other materials. Contact us now for more information.
Your Contact Person
Ms Chilli Ho
Phone/Wechat/Whatsapp +86-181-0187-5575
Skype: chilli.ho@outlook.com
Email: chilli.ho@shunitesteel.com
Company Profile
SHANGHAI UNITE STEEL
We, Shanghai Unite Steel are committed to integrate engineering steel resources in china and serve the global engineering steel market. Our company has more than 15 years of experience in steel researching, production, managing and sales. And our team mostly are based on and worked in national famous steel enterprise.
In the aspect of resources and information, we have established cooperative and stronger relationship with nearly hundred enterprises, either state-owned or private owned in china, such as: DAYE Special Steel-a famous steel enterprise with the longest steelmaking history; BAO Steel, and Dongbei Special Steel Group-the biggest special steel manufacturer; TPCO, VALIN-largest seamless steel tube production enterprise; What's more, we have built long, deep and close business relationship with dozens of steel companies, Sharing and holding equities with several steel enterprises. Because of the close cooperation with steel companies and our pioneering spirit, which can ensure us stay at the top competition, and ensure our customers get what they really want!
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