Skip to content

No results

Home
About Us
Products
Contact Us
News
FAQs

REQUEST A QUOTE

Contact

Name

Email

Phone

Message

Contact Form

Newsletter

Name

Email

Subject

Your Message

Delivering the steel you need, with the quality you expect.

+86-155-0650-6266
sales@welsteels.com

Home
About Us
Products
Contact Us
News
FAQs

4340 steel bar

HomeProducts4340 steel bar

Alloy Steel (Cr‑Mo Series)

Alloy Steel Bar | 4130 / 4140 / 4340 | Chromium‑Molybdenum Steel Round Bar

Product Categories

Steel Coil / Roll (52)
- Carbon Steel Coil (29)
  - Structural Carbon Steel Coil (9)
  - Boiler & Pressure Vessel Steel Coil (12)
  - Wear‑Resistant Steel Coil (4)
  - Weathering Steel Coil (3)
  - Shipbuilding Steel Coil (1)
- Prepainted Steel Coil (2)
  - PPGI – Prepainted Galvanized Coil (1)
  - PPGL – Prepainted Galvalume Coil (1)
- Stainless Steel Coil (16)
- Galvanized Steel Coil (5)
  - Electro‑Galvanized Coil (1)
  - Hot‑Dip Galvanized Coil (1)
Steel Profiles (19)
- H-Beam (6)
  - ASTM H Section (1)
  - DIN1025 / EN10025 H Section (1)
  - EN10025 H Section (1)
  - JIS H Section (1)
  - AS/NZS 3679.1 H Section (1)
  - Asymmetric H-Beam (1)
- Channel Steel (5)
  - C Channel / MC Channel (1)
  - UPN Channel (1)
  - JIS PFC (1)
  - PFC Channel (1)
- I-Beam (3)
  - ASTM I-Beam (1)
  - IPE I-Beam (1)
  - JIS I-Beam (1)
- Angle Steel (3)
  - ASTM Angle Steel (1)
  - EN Angle Steel (1)
  - JIS Angle Steel (1)
- Steel Sheet Pile (2)
  - U Sheet Pile (1)
  - Z Sheet Pile (1)
Steel Pipe / Tube (28)
- Carbon Steel Pipe (11)
  - Seamless Carbon Steel Pipe (5)
  - Welded Carbon Steel Pipe (3)
- Seamless Steel Pipe (1)
  - Carbon Steel Seamless Pipe (1)
- Galvanized Steel Pipe (6)
  - Galvanized Rectangular Tube (1)
  - Galvanized Round Tube (2)
  - Galvanized Square Tube (1)
  - Hot-Dip Galvanized Pipe (2)
  - Pre-Galvanized Pipe (1)
- Stainless Steel Pipe (10)
- Boiler Tube (2)
  - Heat Exchanger Tube (1)
  - High-Pressure Boiler Tube (1)
Steel Sheet / Plate (31)
- Carbon Steel Plate (16)
  - Structural Steel Plate (4)
  - Boiler & Pressure Vessel Steel Plate (6)
  - Wear‑Resistant Steel Plate (1)
  - Weathering Steel Plate (Corten Steel) (1)
  - High‑Strength Low‑Alloy Steel (HSLA) (3)
  - Shipbuilding Steel Plate (1)
- Galvanized Steel Plate / Sheet (3)
  - Hot‑Dip Galvanized Steel (HDG) (1)
  - Electro‑Galvanized Steel (EG) (1)
- Stainless Steel Plate (8)
- Roofing Sheet (4)
  - Galvanized Roofing Sheet (1)
  - Prepainted Roofing Sheet (1)
  - Corrugated / Trapezoidal / Ribbed Panels (1)
Steel Rod / Bar (17)
- Carbon Steel Bar (4)
  - Low Carbon Steel (1)
  - Medium Carbon Steel Bar (1)
  - Structural Steel (1)
  - Alloy Steel (Cr‑Mo Series) (1)
- Stainless Steel Bar (13)
  - Super Austenitic Stainless Steel (1)
  - Austenitic Stainless Steel (7)
  - Ferritic Stainless Steel (2)
  - Martensitic Stainless Steel (2)
  - Duplex & Super Duplex Stainless Steel (2)
Grinding Media (15)
- Mill Grinding Ball (7)
  - Cast Grinding Balls (3)
  - Forged Grinding Ball (4)
- Mill Grinding Cylpebs (4)
  - Cast Grinding Cylpebs (3)
  - Forged Grinding Cylpebs (1)
- Grinding Rod (1)
- Mill Liner (1)
- Steel Track Plate (1)
- Rolling Mortar Wall (1)

Latest Products

Galvanized Round Seamless Pipe | Hot‑Dip Galvanized Seamless Steel Pipe | High Corrosion Resistance
Black Square Tube | Carbon Steel Square Tube | Structural & Construction Grade
JIS H Section | JIS G3192 H-Beam | Japanese Standard Structural Steel
EN10025 H Section | European Standard Structural H-Beam | S235 / S275 / S355 Grades
DIN1025 / EN10025 H Section | HEA / HEB / HEM European Standard H-Beam

Trending now

Advancing Rare Earth Wear- & Heat-Resistant Materials: Innovation from China’s “Rare Earth Capital”

International Stainless Steel Grade Comparison Table (AISI / EN / JIS / GB)

China’s Leading Rare Earth Alloy Industrial Parts Manufacturer: Innovation Since 2005

2000 Breakthrough: Rare Earth Ion Implantation Tech Developed

Products

Steel Coil / Roll
Steel Profiles
Steel Pipe / Tube
Steel Sheet / Plate
Steel Rod / Bar
Grinding Media

Useful Links

FAQs
About Us
Contact Us
Privacy Policy
Payment Terms
Terms of Use
Logistics Information

Contact Us

+86-155-0650-6266
sales@welsteels.com
Shandong Provoince, China

© 2026 - WelSteels - www.welsteels.com

Email: sales@welsteels.com
Tel: +86-155-0650-6266
WeChat: +86-155-0650-6266

Home
Phone
Email
Scroll Top