Marketplace/Non-Ferrous Brass/Brass Turnings

Non-Ferrous Brass

Brass Turnings

Grade: Night/NomadMedium Tier

Yellow brass turnings and borings from machining

Market Price EstimateUpdated Daily

$2,450/ MT

+85 (3.6%)vs yesterday

Verified specifications & market data

Overview Specifications Price Calculator Logistics & Handling Compliance

Certification Requirements

Required certifications, standards compliance, and verification protocols.

ISO 9001:2015 Quality Management System

Scope

Brass turning collection, sorting, oil assessment, briquetting (if applicable), quality verification

Requirement

Supplier must maintain active ISO 9001 certification throughout contract term

Certification BodyAccredited third-party audit body

RenewalAnnual audit required; certification must remain current

Certificate of Analysis

Content

Copper content: 60-70% confirmed (yellow brass turnings range)
Zinc content: 25-40% confirmed (brass alloy component)
Lead content: <2.5% documented (free-cutting brass acceptable)
Iron content: <2.0% confirmed (tool wear contamination)
Tin content: <1.0% confirmed (bronze contamination minimal)
Nickel content: <0.5% documented
Oil/coolant content: percentage documented (CRITICAL for cost planning)
Oil type: water-based/synthetic/mineral identified if known
Material identity: yellow brass turnings CONFIRMED
Ferrous turnings: ABSENT (zero steel shavings mixing)
Stainless steel: NOT DETECTED
Aluminum turnings: <1% maximum (no substantial aluminum mixing)
Composition consistency: turnings match yellow brass machine shop standard
Briquette integrity: if applicable, structural condition verified

Oil/Coolant Content Analysis

Explicit Requirement

MUST state:

Machining oil/coolant content: [X]%
test method: [LOI/solvent extraction]
oil drainage status: [drained/residual/saturated]
processing cost impact documented

XRF Elemental Analysis Report

Requirement

Complete Elemental Profile Confirming Yellow Brass Turnings Specification
Iron Contamination Assessed

ISRI Night/Nomad Grade Certification

Explicit Requirement

MUST state:

Yellow Brass Turnings
ISRI Night/Nomad Grade
Cu 60-70%
Zn 25-40%
machine shop waste verified
oil content [X]%
direct foundry feedstock approved

Ferrous Contamination Verification

Explicit Requirement

MUST state:

Ferrous turnings/steel shavings NOT DETECTED
yellow brass composition CONFIRMED
no steel/ferrous mixing present

Briquette Integrity Certificate

Requirement

If briquetted form: verification of structural integrity and density

Insurance Certificate

Minimum Coverage

Commodity Brass Material
Standard Coverage

Rejection Criteria

Conditions and thresholds that trigger immediate rejection or downgrading.

Copper content out of yellow brass range

Threshold

Cu <60% OR Cu >70%

Action

Full rejection or major reclassification

Reason

Material not consistent with yellow brass machine shop specification

Test Method

XRF spectrometry

Severity

CRITICAL - SPECIFICATION VIOLATION

Consequence:

Full lot rejection or downgrading to different commodity

Zinc content outside brass range

Threshold

Zn <25% OR Zn >40%

Action

Full rejection or major reclassification

Reason

Composition Imbalance
Not Yellow Brass

Test Method

XRF spectrometry

Severity

CRITICAL - SPECIFICATION VIOLATION

Consequence:

Full rejection or substantial downgrading

Ferrous turnings mixing

Threshold

Visible steel turnings >2% OR Fe >2.0% detected

Action

Full rejection or magnetic separation required

Reason

Ferrous contamination violates non-ferrous brass specification

Test Method

Magnetic test + visual + XRF if Fe >1.5%

Severity

CRITICAL - CONTAMINATION

Consequence:

Full rejection or material segregation/separation

Stainless steel contamination

Threshold

>0.5% stainless detected OR visible stainless ribbon

Action

Full rejection or segregation

Reason

Stainless incompatible with foundry brass processing

Test Method

Visual inspection + XRF

Severity

CRITICAL - CONTAMINATION

Consequence:

Full Rejection
Material Separated

Aluminum turnings contamination

Threshold

>1% aluminum detected OR visible aluminum turnings

Action

Full rejection or reclassification

Reason

Non-Ferrous Metal Mixing
Foundry Incompatible

Test Method

XRF spectrometry + visual inspection

Severity

CRITICAL - CONTAMINATION

Consequence:

Full rejection or substantial downgrading

Lead contamination excessive

Threshold

Pb >2.5%

Action

Full rejection or major credit (-£75-150/MT)

Reason

Exceeds Free-Cutting Brass Tolerance
Smelting Concern

Test Method

XRF spectrometry

Severity

MODERATE-CRITICAL - CONTAMINATION

Consequence:

Rejection or substantial penalty

Oil contamination excessive

Threshold

Oil >3.0% (or material visibly saturated with coolant)

Action

Major credit (-£50-100/MT additional) or rejection if >4%

Reason

Cutting Fluid Excess Increases Foundry Processing Cost
Smelting Efficiency Concern

Test Method

Loss on ignition (LOI) or solvent extraction

Severity

MODERATE-CRITICAL - PROCESSING

Consequence:

-£50-100/Mt Penalty For Excess
>4% May Trigger Rejection

Hazardous coolant contamination

Threshold

PCB, radioactive, or toxic fluid detected

Action

Full Rejection
Hazmat Protocol

Reason

Hazardous Coolant Contamination
Regulatory Violation
Safety Concern

Test Method

Fluid analysis if hazardous suspected

Severity

CRITICAL - HAZMAT/SAFETY

Consequence:

Full Rejection
Hazmat Disposal Protocols Apply

Unknown material or composition

Threshold

Cannot confirm yellow brass turnings; composition indeterminate

Action

Full rejection

Reason

Material Identity Uncertain
Must Be Identifiable Yellow Brass Turnings

Test Method

XRF analysis + expert assessment

Severity

CRITICAL - IDENTIFICATION FAILURE

Consequence:

Material Rejected
Requires Extensive Testing