TORICH INTERNATIONAL LIMITED
| Grade | SCM415 SCM420 SCM430 SCM435 SCM440 |
| Alloy or not | Non-alloy,Is Alloy |
| Section shape | Round,Rectangular |
| Length | 6M or as requirement,As customer's require |
| Technique | Cold Drawn,Hot Rolled,Cold Rolled,ERW,Hot Rolled/Cold Drawn |
| Payment Terms | L/C,D/A,D/P,T/T,Western Union |
| Supply Ability | 60000 Ton/Tons per Year |
| Delivery Time | 20-30days upon products |
| Packaging Details | In bundles or in wooden boxes. |
| Application | Automotive Mechanical |
| Outer diameter(round) | 6–323.8 mm |
| Wall Thickness | 1–50 mm |
| Standard | ASTM A519,EN 10297-1,GOST 4543,JIS 4053,GB/T 3639 |
| Brand Name | TORICH |
| Model Number | Automotive Steel Pipe |
| Certification | ISO9001 ISO 14001 TS16949 |
| Place of Origin | ISO9001 ISO 14001 TS16949 |
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Product Specification
| Grade | SCM415 SCM420 SCM430 SCM435 SCM440 | Alloy or not | Non-alloy,Is Alloy |
| Section shape | Round,Rectangular | Length | 6M or as requirement,As customer's require |
| Technique | Cold Drawn,Hot Rolled,Cold Rolled,ERW,Hot Rolled/Cold Drawn | Payment Terms | L/C,D/A,D/P,T/T,Western Union |
| Supply Ability | 60000 Ton/Tons per Year | Delivery Time | 20-30days upon products |
| Packaging Details | In bundles or in wooden boxes. | Application | Automotive Mechanical |
| Outer diameter(round) | 6–323.8 mm | Wall Thickness | 1–50 mm |
| Standard | ASTM A519,EN 10297-1,GOST 4543,JIS 4053,GB/T 3639 | Brand Name | TORICH |
| Model Number | Automotive Steel Pipe | Certification | ISO9001 ISO 14001 TS16949 |
| Place of Origin | ISO9001 ISO 14001 TS16949 | ||
| High Light | Automotive Mechanical Precision Steel Pipe ，SCM430 Alloy Seamless Steel Pipe ，Cold Drawn Alloy Steel Pipe | ||
This product is a precision seamless mechanical steel pipe manufactured from JIS SCM-series chromium–molybdenum (Cr-Mo) alloy steels. These steels are widely used for automotive and high-load mechanical parts because they combine high strength, good hardenability, fatigue resistance, and stable machining performance. Chemical composition requirements for SCM415/420/430/435/440 are defined in JIS G4053.
Product type: Precision mechanical seamless steel pipe / tube (hot-finished and/or cold-finished)
Typical OD range: 6–323.8 mm (0.25"–12 3/4")
Typical wall thickness: 1–50 mm (as required by design)
Length: 3–12 m random; fixed length on request
Manufacturing process: hot piercing → hot rolling → cold drawing/cold finishing (optional) → heat treatment (optional) → straightening → NDT/inspection
Supply condition (optional): Annealed / Normalized / Stress-relieved / Quenched & tempered (per requirement)
Seamless structure for reliable pressure and fatigue performance
Excellent heat-treat response (carburizing / quenching & tempering / induction hardening depending on grade)
High strength-to-weight ratio for lightweight automotive design
Good machinability for precision turning, drilling, honing, and threading
Stable quality suitable for mass-production components
“Can you hold tight tolerances for automated assembly?”
We offer cold-finished options with controlled OD/ID consistency, straightness, and surface quality, enabling stable fit-up for bushings, shafts, sleeves, and welded sub-assemblies.
“Can you deliver the exact heat-treatment condition I need?”
We can supply multiple delivery conditions commonly used for mechanical tubes (e.g., hot-finished/cold-finished and normalized/annealed/stress-relieved), and align the condition to your target machining or performance requirements.
“How do you ensure compliance and traceability for automotive programs?”
We provide heat/lot traceability, inspection documentation (e.g., chemical analysis, dimensional reports), and optional NDT (UT/ET) to support consistent qualification and repeatable supply.
| JIS Grade | C | Si | Mn | P (max) | S (max) | Cr | Mo |
|---|---|---|---|---|---|---|---|
| SCM415 | 0.13–0.18 | 0.15–0.35 | 0.60–0.85 | 0.030 | 0.030 | 0.90–1.20 | 0.15–0.30 |
| SCM420 | 0.18–0.23 | 0.15–0.35 | 0.60–0.85 | 0.030 | 0.030 | 0.90–1.20 | 0.15–0.30 |
| SCM430 | 0.28–0.33 | 0.15–0.35 | 0.60–0.85 | 0.030 | 0.030 | 0.90–1.20 | 0.15–0.30 |
| SCM435 | 0.33–0.38 | 0.15–0.35 | 0.60–0.85 | 0.030 | 0.030 | 0.90–1.20 | 0.15–0.30 |
| SCM440 | 0.38–0.43 | 0.15–0.35 | 0.60–0.85 | 0.030 | 0.030 | 0.90–1.20 | 0.15–0.30 |
| Grade | Tensile Strength Rm | Yield Strength (Rp0.2 / Re) | Elongation A |
|---|---|---|---|
| SCM415 | 640–930 MPa | ≥ 440 MPa | ≥ 11% |
| SCM420 | 980–1270 MPa | ≥ 685 MPa | ≥ 8% |
| SCM430 | 670 MPa | 435 MPa | 25.5% |
| SCM435 | 900–1100 MPa | ≥ 650 MPa | ≥ 12% |
| SCM440 | 655 MPa | 415 MPa | 25.7% |
ASTM: ASTM A519/A519M (Seamless carbon & alloy steel mechanical tubing; hot-finished and cold-finished)
EN: EN 10297-1 (Seamless circular tubes for mechanical and general engineering purposes); EN 10083 / EN 10084 (typical related steel families for Q&T / case-hardening)
GOST: GOST 4543 (Alloy structural steels)
JIS: JIS G4053 (Low alloy steels for machine structural use); JIS mechanical-tube standards can be applied per project requirement
GB: GB/T 3639 (Cold drawn/honed precision seamless steel tubes); GB/T 3077 (Alloy structural steels)
Primary sectors: Automotive, construction machinery, industrial equipment, hydraulic/mechanical systems, high-strength shafts and sleeves.
Typical automotive usage (examples):
Transmission & drivetrain: drive shafts, axle sleeves, spline sleeves
Steering & chassis: steering shafts, torsion bars, stabilizer components
Powertrain & structural parts: high-strength bushings, pins, precision sleeves
General machining parts: spacers, collars, threaded mechanical components
A: manufacturer,also can do trading.
A: Generally speaking,it is 10-15 days if the goods are in stock,or it is 30-40 days if the goods are not in stock,
it is according to quantity.
A: Yes, we could offer the sample for free charge but need pay the cost of freight.
A: Payment<=2000USD, 100% in advance. Payment>=2000USD, 30% T/T in advance ,balance before shippment.
If you have another question, pls feel free to contact with me.
Company Details
Business Type:
Manufacturer,Distributor/Wholesaler,Importer,Exporter,Trading Company,Seller
Year Established:
1997
Total Annual:
25000000-30000000
Employee Number:
100~200
Ecer Certification：
Verified Supplier
Company Overview A Professional Steel Tube Manufacturer and Solution Provider TORICH INTERNATIONAL LIMITED integrates steel tube manufacturing, international trade, warehousing, technical support and customized processing. Our manufacturing operations cover cold drawing, cold rolling, heat treat... Company Overview A Professional Steel Tube Manufacturer and Solution Provider TORICH INTERNATIONAL LIMITED integrates steel tube manufacturing, international trade, warehousing, technical support and customized processing. Our manufacturing operations cover cold drawing, cold rolling, heat treat...
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