How do you guarantee quality?

We conduct pre-production samples, final inspections before shipment, and utilize professional teams for UT, PT, and mechanical property tests.

What payment terms are accepted?

We accept T/T, L/C, MoneyGram, and various currencies including USD, EUR, HKD, and CNY under terms like FOB, CFR, CIF, EXW, DDP, and DDU.

Can you handle large scale forgings?

Yes, our equipment supports piece weights up to 20 tons, ring outer diameters up to 3500mm, and shaft lengths up to 10 meters.

OEM St35 St45 CNC Carbon Steel Forged Engine Block

Name: OEM St35 St45 CNC Carbon Steel Forged Engine Block
Brand: Zhangjiagang Chewit International Co., Ltd.
SKU: 2033814315

Jiangsu, ChinaZhangjiagang Chewit International Co., Ltd.

US$1.00-15.00

100 Pieces

Product profile

Customization

Available

Processing Object

Metal

Molding Style

Forging

Model NO.

Customized

Molding Technics

Hot Forging

Application

Automotive, Hardware, Machinery, Construction

Material

Steel,Aluminum,Copper

Heat Treatment

Quenching

Surface Treatment

Sand Blasting, Galvanizing, Chrome-Plating, Nickle

Forging Tolerance

+/-0.5mm

Standard

as Per Drawing

Certification

ISO 9001:2000, ISO 9001:2008

Process

Open Die, Ring Rolling, Hot Forging, Closed Die

Serive

OEM/ODM

Transport Package

Sea Wooden Packing

Specification

0.2kg/PCS-150kg/PCS

Trademark

Origin

China

Key features

Customized Forging Service: OEM/ODM support with open die, ring rolling, hot forging, and closed die processes.

High Precision Tolerance: Forging tolerance controlled within +/-0.5mm according to customer drawings.

Wide Material Selection: Available in Carbon Steel, Alloy Steel, Tool Steel, Stainless Steel, Aluminum, and Copper.

Certified Quality Standard: ISO 9001:2000 and ISO 9001:2008 certified with MAN Diesel & Turbo certificate available.

Large Capacity Equipment: 3150T hydraulic press and 80T crane handle forgings up to 28 tons and 80 tons respectively.

Comprehensive Heat Treatment: Includes quenching, UT test, PT test, and mechanical properties testing for durability.

Multi-Industry Application: Suitable for automotive, marine, wind power, pressure vessels, and hydraulic systems.

Professional Surface Treatment: Options include sand blasting, galvanizing, chrome-plating, and nickel plating.

Company profile

Zhangjiagang Chewit International Co., Ltd.

Jiangsu, China

CertifiedBusiness Type: Manufacturer/Factory & Trading Company CertifiedR&D Capacity: OEM Service AvailableExport Year: 2013-08-01 CertifiedNearest Port: shanghaiAverage Response Time: ≤6.33h CertifiedTerms of Payment: LC, T/T

AI-Powered supplier vetting

SummaryZhangjiagang Chewit is a China-based limited trading company established in 2010, with stated precision-tube and steel-forging manufacturing activities. The supplier reports ISO9001:2015 certification, more than 10 production lines, approximately 5,000 tons of annual seamless-steel-pipe productivity, broad export-market coverage, and one-month lead times in both peak and off-peak seasons. Its quality claims include 100% dimensional and surface checks, batch chemical and mechanical testing, and non-destructive testing upon request. Evidence is insufficient to assess after-sales service, financial credibility, and customization capability. Innovation evidence is limited to an associated forging operation reporting 11 authorized patents, while customer evidence consists of one listed buyer and one trade transaction.

Supplier typeThe supplier is identified as a China-based limited company and trade company, with stated manufacturing activities in precision steel tubes and forgings. Its product scope includes seamless, welded, carbon, stainless, hydraulic, cold-drawn, and precision tubes, indicating a specialized steel-product supplier with both trading and manufacturing positioning.

CertificationsThe supplier explicitly reports an ISO9001:2015 management-system certificate. It also describes inspection and industry-related qualifications associated with its forging operation, including API 20B, PED, and classification-society credentials, although the scope and holder of each qualification are not separately specified.

R&D capabilityThe supplier describes advanced production and inspection equipment, precision-tube manufacturing, and a forging operation with 11 authorized patents, including three invention patents. These statements provide explicit but limited evidence of process and product-development capability, mainly linked to the forging operation rather than clearly to the entire supplier entity.

Production capacityThe supplier reports more than 10 production lines, annual seamless-steel-pipe productivity of 5,000 tons, heat-treatment furnaces, inspection equipment, and manufacturing of precision tubes and forgings. The descriptions also cite a 10,000-square-meter tube operation and a substantially larger forging facility, although employee and facility figures are inconsistent across slices and should be verified.

Client casesThe supplier states that it serves wind power, oil and gas, transportation, shipbuilding, and gearbox sectors and has entered the global purchasing system of a major company since 2006. The trade data identifies one buyer and one transaction, so sector references are available but the breadth and depth of verifiable customer cases remain limited.